K007en

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http://www.nssmc.com/

2-6-1 Marunouchi, Chiyoda-ku,Tokyo 100-8071 JapanTel: +81-3-6867-4111

STEEL SHEET PILES

2012, 2015 NIPPON STEEL & SUMITOMO METAL CORPORATIONK007en_05_201506f

STEEL SHEET PILES

2Wide Selection of Shapes and TypesSheet pile is available in a wide range of section modulus per meter of pile wall, ranging from 874 to 21,846 cm/m. This allows selection of the most economical type of sheet pile to meet the design requirements and the intended construction method.

Superb Drivability and WatertightnessThe clearance between the two threaded interlocks is moderate enough to ensure both excellent drivability and reliable watertightness.

Features

(1) Quick construction: Dramatic reduction in the construction period

(2) Reliability for long-term use: Increases the safety factor and reduces the deformation of the wall using robust steel sheet piles

(3) Availability of long pile and deep embedment: Up to 38m in length

(4) Sustainability: Remove and reuse possible(5) Availability of narrow areas

Advantages of steel sheet piles over other methods (masonry, RC walls, etc.)

Notice: While every effort has been made to ensure the accuracy of the information contained within this publication, the use of the information is at the reader's risk and no warranty is implied or expressed by Nippon Steel & Sumitomo Metal Corporation with respect to the use of the information contained herein. The information in this publication is subject to change or modication without notice. Please contact the Nippon Steel Sumitomo Metal Corporation ofce for the latest information. Please refrain from unauthorized reproduction or copying of the contents of this publication.The names of our products and services shown in this publication are trademarks or registered trademarks of Nippon Steel & Sumitomo Metal Corporation, afliated companies, or third parties granting rights to Nippon Steel & Sumitomo Metal Corporation or afliated companies. Other product or service names shown may be trademarks or registered trademarks of their respective owners.

Contents1.General1Usage 32Example of solution proposed by us 73Product lineup 94Grade and tolerances 115Production process 136Our engineering support system 152.Products1Hat-type sheet pile 172Hat-type and H-shape combined high stiffness steel sheet piles 213Straight web-type sheet piles 254Steel sheet pile cell method 265U-type sheet piles 276Combined walls 297NS-SP-J 318Corner-section sheet piles : As rolls 333.Attachment1Corner-section sheet pile 352Tie rod, guide frame, coping 363Driving method 384Joint method 415Watertightness 426Anticorrosion system 42

Applications and structural types of sheet piles

Leading the New Era on Steel Sheet Pile with Pioneer Sprits The steel sheet piles of Nippon Steel & Sumitomo Metal are used in many fields (port and harbor structures, river revetments, retaining walls and

cofferdams) and have acquired high market acceptance due to their excellent product quality and construction efficiencies that derive from their use.

Nippon Steel & Sumitomo Metal, drawing a wealth of rolling, fabrication and construction methods in these fields, which have also won

for the company a high reputation. Based on an accumulation of technical expertise, Nippon Steel & Sumitomo Metal has developed and placed on the market solution proposal using all our available products at a maximum. Nippon Steel & Sumitomo Metal will continue its efforts to develop novel products that bring the properties of sheet piles into full play and to respond to more stringent and diversifying user needs in the future.

Irrigation channelCantilever-type sheet pile

Regulating pondageCantilever-type sheet pile

Bank reinforcementCantilever-type sheet pile

Road-retaining wallCantilever-type sheet pile

Reclamed RevetmentCellular-type sheet pile

Quay wallAnchored-type sheet pile

Temporary retaining wallCantilever-type sheet pileStrut type sheet pile

BreakwaterDouble-wall-type sheet pile

CheckdamDouble-wall-type sheet pileRiver revetment

Cantilever-type sheet pile

Anchored-type sheet pileWaste disposal area

Anchored-type sheet pileTraining dyke

Common utility ductStrut type sheet pile

Anchored-type sheet pileRevetment

Sea surface disposal siteCellular-type sheet pile

Artificial islandCellular-type sheet pile

Bridge pier protectionCellular-type sheet pile

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STEEL SHEET PILESNIPPON STEEL & SUMITOMO METAL

Quay wall, revetment, man-made island GeneralP

rod

uctsA

ttachment

General

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NS-SP-J

River revetment

Temporary retaining wall

Retaining wall

Bridge pier protection

Cofferdam

General

Pro

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Attachm

ent

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Small-scale excavation

Large-scale excavation

The vertical load in the axial direction like a crane load is applied and the bearing force against the vertical load is expected. Welding can't be carried out near the site.

Example of solution proposed by usWe want to use our land to the utmost. Can you provide a good steel sheet pile?

Do you have any steel sheet pile method that is environmentally friendly?

Do you have a steel sheet pile that can be easily installed?

Can you provide a good method to build a large-scale revetment for reclamation?

We want to minimize deflection for safety when the front of a steel sheet pile is excavated. Can you provide a good steel sheet pile?

Each pile of a wall has a uniform shape and rigidity. Therefore only one type of piling machine is required for installation and the sequential installation in the same direction is possible. This leads to easy installation. (Refer to pages 15 and 16.)

This is a gravitational wall featuring a cylindrical shape assembled with straight web-type sheet piles. Inside is filled with sand. It is excellent in structural stability. A prefabricated sheet p i l e ce l l me thod can provide quick construction. (Refer to pages 17 and 18.)

Unlike a concrete-based temporary earth-retaining wall, the steel sheet pile wall can be repeatedly used and is environmentally friendly. In construction, sludge is not generated, and the disposal of soil is not required. (Refer to pages 13 to 16.)

The moment of inertia is almost twice as large as that of Z-type sheet pile. This leads to reduction of deection and the number of struts. The sheet piles can be re-used multiple times. (Refer to pages 15 and 16.)

The clearance between the threaded interlocks is moderate enough to make it easy to install sheet piles which are installed afterward while pipe piles are installed forward. This clearance can absorb the inaccuracy of the positioning of pipe piles and sheet piles. (Refer to pages 23 and 24.)

This is a gravitational wall in which steel sheet piles are installed in two rows. The tops of the sheet piles are connected by tie rods. And the space between the sheet piles is filled with sand. It is excellent in structural stability. By dividing the construction site into multiple zones and by pairing a group of ships, the construction lead time can be reduced.

The steel sheet pile is a good method to construct a revetment quickly. The special function required to construct the revetment for reclamation is the stability against waves until the completion of reclamation. The structure must be safe even without back reclamation.

Depth of approx. 10 m 15 m

Temporary earth-retaining wall

The interlocks are situated on the outmost side of the section. This makes it unnecessary to consider the reduction of sectional properties which are factored in with U-type sheet piles. This leads to reduction of the number of struts. The sheet piles can be re-used multiple times. (Refer to pages 13 and 14.)

Combined wall of U-type / Hat-type and pipe pile

Steel sheet pile double wall

Hat-type sheet pile

Hat-type and H-shape combined high stiffness steel sheet pile

Hat-type and H-shape combined high stiffness steel sheet pileSteel sheet pile cell

Hat-type and H-shape combined high stiffness steel sheet pile Hat-type sheet pile

Nippon Steel & Sumitomo Metal provides comprehensive solutions. We have a team of civil engineers at the head ofce and the overseas ofces. And we can propose the optimum design plan by our products through discussions with our customer in a given time after we obtain the design conditions. This is our complimentary engineering support to our customer. (Our proposal is for reference of our customer. The responsible judgment is up to the customer.) (Refer to pages 11 and 12.) Various types and sizes of sheet piles are available. The optimum type and size is selected based on the design conditions and the construction method. (874cm3/m to 21,846cm3/m) (Refer to pages 7 and 8.)

Depth of approx. 10 m or lower

Weaklayer

Load bearing layer

Weaklayer

Load bearing layer

Weaklayer

Load bearing layer

In the case of construction of a revetment at a seaside where a week layer exists, the improvement of soil is eliminated by embedding sheet piles into the load-bearing layerunlike a concrete caisson or stone revetment. This is an environmentally friendly method. (Refer to pages 17 and 18.)

Seawall

Steel sheet pile cell

The vertical load in the axial direction like a crane load is not applied. Welding can be carried out near the site.

NS-SP-J pile and the dedicated press-in piler can construct a earth-retaining wall without dead space. This enables the full use of the premises to the boundary limits. (Refer to pages 25 and 26.)

Q

Q

Q

Q

Q

NS-SP-J pileMin. 0mm

Existing structure

General

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Attachm

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Shape Type

Momentof inertia

Sectionmodulus Unit mass

Maximum length

GradeJIS A 5523 JIS A 5528 KS F4604 EN10248 ASTM

I (cm4/m) Z(cm/m) W (kg/m2) L (m) SYW295 SYW390 SYW430 SY295 SY390 SY300 S355GP S430GP A572Gr.50

Hat-type sheet piles

Hatw= 900 mm

NS-SP-10H 10,500 902 96 30*2 *1 *1 *1 *1

NS-SP-25H 24,400 1,610 126 30*2 *1 *1 *1 *1

NS-SP-45H 45,000 2,450 163 30*2 *1 *1 *1 *1

NS-SP-50H 51,100 2,760 186 30*2 *1 *1 *1 *1

Hat+Hw= 900 mm

NS-SP-10H+HYNS-SP-25H+HY

88,000 to 1,316,000

2,320 to 19,970 169 to 514 30*

2

Please refer to NS-SP-10H"and NS-SP-25H". H-shapes is also available JIS, ASTM and BS.*2

Hat + (Hat+H)w= 900 mm NS-SP-10H+HY

146,000 to 248,000

2,660 to 4,330 160 to 191 30*

2

Straight web-type sheet

pilesStraight webw= 500 mm

NS-SP-FL 369 89 123 38*2 *1 *1 *1

NS-SP-FXL 570 121 154 38*2 *1

U-type sheet piles

U-typew= 600 mm

NS-SP-w 13,000 1,000 103 30*2 *1 *1 *1

NS-SP-w 32,400 1,800 136 30*2 *1 *1 *1

NS-SP-w 56,700 2,700 177 30*2 *1 *1 *1

w= 500 mm

NS-SP-VL 63,000 3,150 210 30*2 *1

NS-SP-VIL 86,000 3,820 240 30*2 *1

w= 400 mm

NS-SP- 8,740 874 120 25*2 *1 *1 *1 *1 *1 *1 NS-SP- 16,800 1,340 150 30*2 *1 *1 *1 *1 *1 NS-SP-A 22,800 1,520 146 30*2 *1 *1 *1 *1 *1 *1 *1

NS-SP- 38,600 2,270 190 30*2 *1 *1 *1 *1 *1

Combined wallSteel pipe sheet pile + Hat or U

SP 800 to 2000 +w,w,w,

10H, 25H,45H, 50H

98,753 to2,184,589

2,469 to21,846 178 to 401 30*

2 Please refer to NS-SP-10H", NS-SP-25H", NS-SP-45H", NS-SP-50H", NS-SP-w", NS-SP-w", and NS-SP-w", Pipe Pile is also available JIS, ASTM and BS.*2

NS-SP-J NS-SP-Jw= 600 mm NS-SP-J 12,090 1,175 145 30*

2 *1 *1 *1

*1) Please contact us availability.*2) Please contact us detail in advance to order.9 10


t

W

h

Product lineup

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th

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th

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General

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Grade and tolerancesJIS A 5523 : 2012 Weldable hot-rolled steel sheet pilesJIS A 5528 : 2012 Hot-rolled steel sheet piles

BS EN 10248-1 : 1996Hot-rolled sheet piling of non-alloy steelPart 1. Technical delivery conditions

BS EN 10248-2 : 1996Hot-rolled sheet piling of non-alloy steelPart 2. Tolerances regarding shape and dimensions

ASTM A6/A6M-12Standard specifications for general requirements for rolled structural steel bars, plates, shapes, and sheet pilings.

ASTM A572M / A572-12High-strength low-alloy columbium-vanadium structural steel

Standard Classicationsymbol

Yield point N/mm

Tensile StrengthN/mm

Test Piece Elongation%

Charpy absorbed energy, JType and

direction of test piece

Testtemperature

Standard size test specimen Sub-size test specimen

1010mm 107.5mm 105mm

Weldable hot rolledsteel sheet piles

JIS A 5523

SYW295 295min. 450min. No.1A 18min.

0 43min. 32min. 22min.V notch in rolling direction

No.14B 24min.

SYW390 390min. 490min. No.1A 16min.No.14B 20min.

Hot rolled steelsheet pilesJIS A 5528

SY295 295min. 450min. No.1A 18min.

No.14B 24min.

SY390 390min. 490min. No.1A 16min.No.14B 20min.Note:Chemical composition and mechanical properties conform to JIS A 5523-2012 or JIS A 5528-2012 . N is shown by total in accordance with section 5. Note 2 of JIS A 5523-2012.

Mechanical properties

1) See the specific limitation in the standard.

* Please contact us in advance.


Steel name

Minimum yield

strength (N/mm2)

Minimum tensile

strength(N/mm)1)

Minimum elongation on a gauge length ofL0 = 5.65 S0 A%

S355GP 355 480 22

S430GP 430 510 19

* Please contact us in advance.

GradeMinimum

yieldstrength

Minimum tensile

strengthMinimun

elongation(%)

50 50Ksi (345MPa)

65Ksi (450MPa)

In 8 in. (200 mm)18In 2 in. (50 mm)21


Classication Grade Chemical composition(%) Ceq.%C Si Mn P S N Ceq.Weldable hot rolledsteel sheet piles

SYW295 0.18max. 0.55max. 1.50max. 0.040max. 0.040max. 0.0060max. 0.44max.SYW390 0.45max.Hot rolled steel

sheet pilesSY295

0.040max. 0.040max. SY390Note: Ceq.=CMn6Si24Ni40Cr5Mo4V14

Chemical composition of the ladle analysis

Steel name

Chemical composition % max 1)

C Mn Si P S N1)

S355GP0.24 1.60 0.55 0.045 0.045 0.009

S430GP


1) See the specific limitation in the standard.

GradeChemical composition % max

C Mn Si P S

50 0.23 1.351) 0.40 0.04 0.05


11 12


Items JIS A 5523, JIS A 5528straight type

JIS A 5523 JIS A 5523 JIS A 5528

U-type Hat-type U-type

Width 4 mm 1 %2w, 3w, 4w+ 6 mm- 5 mm+ 10 mm- 5 mm

+ 10 mm- 5 mm

Height 4 % 4 %

Thickness + 1.5 mm- 0.7 mm

t < 10 mm

10 t < 16 mm

t16 mm

+ 1.0 mm - 0.3 mm+ 1.2 mm - 0.3 mm+ 1.5 mm - 0.3 mm

t < 10 mm 1.0 mm 10 t < 16 mm 1.2 mm

t16 mm 1.5 mm

Straightness

(Deection) L 10 m L > 10 m (Camber)L 10 m L > 10 m

L 0.15% (L-10) 0.1% + 15 mmL 0.20% (L-10) 0.20% + 20 mm

(Deection)L 0.1%

max 20 mm(Camber)L 0.2%

max 20 mm

(Deection) L 10 m L > 10 m (Camber)L 10 m L > 10 m

L 0.12% (L-10) 0.1% + 12 mmL 0.25% (L-10) 0.20% + 25 mm

Length + Not specied - 0 mm

Squareness of ends 4%b 4%b 4%b

Overall width difference

Within 1 m of the end part in the length direction, the difference between the maximum and minimum of the overall width is 4 mm or under.

End deection

Within 1 m of the end part in the length direction, the end deection is 1.5 mm or under.

Coupling mating joint angle 6.0 4.0

b

h

t

t

b

Tolerances

L

b

b

p

p

p

p

b

b

p

p

p

p

L

q Item ASTM A6

Length + 125 mm- 0 mm

Mass tolerance 2.5%

Tolerances

L

Item BS EN 10248-2

Width 2% b

Height h 200h > 200 4 mm 5 mm

Thickness t 8.5t > 8.5 0.5 6 % t

Straightness 0.2 % L

Length 200

Squareness of ends 2%b

Interlocks of the prole

(straight type)a - b 7.0(U-type)a - b 4

Mass tolerance 5%

b

h

t

t

b

L

b

b

p

p

p

p

b

b

p

p

p

p

L

q

Tolerances

Straight type U-Type

a

b

a

b

a

b

a

b

General

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Attachm

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Please contact us in case above tolerances are applied.

Please contact us in case above tolerances are applied.

Reheating furnace Finished product After installationBlast furnace

Limestone

Iron Ore

Coal

Sintering Plant

Coking Plant Blast FurnaceCharging

Molten Iron

VacuumDegassingFarnace

ContinuousCastiing

BasicOxygen

Equipment

Chargingscrap

OxygenBlow

Torpedo Car

Basic-oxygen furnace Continuous caster

13 14


Hot saws

No.2 Intermediate mills Finishing mill

Roller straightener Finished product

Reheating furnace

Breakdown mill

No.1 Intermediate mills

Production process

General

Pro

ducts

Attachm

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Our engineering support systemNippon Steel & Sumitomo Metal is the world's leading supplier of hot-rolled steel sheet piles. In addition to the supply of products, We provide the complimentary engineering support listed below in response to the request of our customer. The engineering team from Nippon Steel & Sumitomo Metal and overseas ofces can cover the global market.

Shanghai

Singapore Jakarta

Sydney

Chicago

San Paulo

Perth

Bangkok

Belo Horizonte

Mexico

Houston

Beijing

Guangzhou

Tokyo

New DelhiDubai

Dusseldorf

New York

Ofces with construction material engineers Our overseas ofces

Based on the design conditions obtained from the customer and our numerous design records, we can provide an optimum design plan.

Design proposals related to the basic / detailed design of structures (temporary / permanent) using steel sheet pile products. Supply of information on the construction method of structures using steel sheet piles. Design proposals related to the method to prevent corrosion of steel sheet pile products. Instructions on how to manufacture fabricated products, etc.

Design proposal

Instruction for fabricationWe have prepared manuals for fabrication and can provide instruction at the site.

Proposal of construction methodBased on past achievements, we can provide various recommendations, including those regarding the selection of the most-optimum construction machine according to soil conditions.

Proposal of method to prevent corrosionWith long-standing experience, we are able to provide various kinds of recommendations.

Manual for fabrication Instruction of fabrication

Through the ofces below, we review various techniques, and we hold seminars, exhibitions, and construction demonstrations, etc., all over the world.

24.309

10.822

45.000

= 90.000

= 1.305(m)

90.000

6.366

19.00

7

21.645

Map of offices

General

Pro

ducts

Attachm

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Note : This is a part of complimentary engineering support for reference of our customer. The responsible judgment is up to the customer.

Vietnam

17 18


Superb drivabilityThe large sectional area of the Hat-type sheet pile realizes superior drivability. High structural reliability

No reduction is required in sectional properties to consider the possible lack of shear force transmission at the interlocks, which is true for U-type steel sheet piles.

Excellent cost-effectivenessThe amount of steel per unit wall can be reduced, resulting in improved total cost.

Shapes

Sectional properties

Type

Dimension Per pile Per 1 m of pile wall widthEffective

widthW

mm

Effectiveheight

hmm

Thicknesst

mm

Sectionalarea

cm

Momentof inertia

cm

Sectionmodulus

cm

Unitmass

kg/m

Sectionalarea

cm/m

Momentof inertia

cm/m

Sectionmodulus

cm/m

Unitmass

kg/m

NS-SP-10H 900 230 10.8 110.0 9,430 812 86.4 122.2 10,500 902 96.0

NS-SP-25H 900 300 13.2 144.4 22,000 1,450 113 160.4 24,400 1,610 126

NS-SP-45H 900 368 15.0 187.0 40,500 2,200 147 207.8 45,000 2,450 163

NS-SP-50H 900 370 17.0 212.7 46,000 2,490 167 236.3 51,100 2,760 186

Hat-type sheet piles

Products

W

th

Each interlock allows for a certain rotation. The minimum angle of coupling mating joint (the interlock swing) for the combination of the identical versions of Hat-type sheet piles is shown in the gure below.

Compatibility

Deviation angle

4

4

The sectional properties of Hat-type sheet piles after 1 mm of corrosion loss per side, totaling 2 mm on both sides, are shown in the table below.

Steps to calculate sectional properties after corrosion; Assume the corrosion rate and lifetime of the facility, and

calculate the corrosion loss of the marine side t (mm) and that of the land side t (mm).

Calculate the corrosion loss rate (=t/t).Using the corrosion loss of the marine side t (mm) and the

corrosion loss rate , obtain the reduction ratio of the sectional properties from the following graphs.Calculate the sectional properties after corrosion loss, Z and I, by

multiplying the sectional properties before corrosion loss, Z with I by the reduction ratio .

Section modulus Z Z Moment of inertia I I

Io, Zo : Moment of inertia and section modulus without corrosion loss

: Reduction ratio after corrosion I, Z : Moment of inertia and section modulus after corrosion

TypeSectional properties without corrosion loss Sectional properties with 1 mm of corrosion loss per side

I0 cm/m Z0 cm/m % I cm/m Z cm/mNS-SP-10H 10,500 902 79 8,300 713NS-SP-25H 24,400 1,610 82 20,000 1,320NS-SP-45H 45,000 2,450 85 38,300 2,080NS-SP-50H 51,100 2,760 87 44,500 2,400

Sectional properties after corrosion

Graphs for obtaining the reduction ratio of sectional properties,

: reduction ratio of sectional properties after corrosion%

t, t : corrosion loss of marine side and land sidemm

: corrosion loss rate, t/tNote : Only the illustrated ranges are effective in the following graphs.

t1

t2

t1

t2

t1

t2

t1

t2

t1

t2

General

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Attachm

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10.8

900

230 300

13.2

900

15

900

368

17

370

900

NS-SP-10H

NS-SP-45H

NS-SP-25H

NS-SP-50H

NS-SP-50HNS-SP-10H NS-SP-25H NS-SP-45H

t1 (mm)

%

100

90

80

70

60

500 1 2 3 4

t1 (mm)

%

100

90

80

70

60

500 1 2 3 4 5 6 7

t1 (mm)

%

100

90

80

70

60

500 1 2 3 4 5 6

=0=0.25=0.5=0.75=1.0

=0=0.25=0.5=0.75=1.0

t1 (mm)

%

100

90

80

70

60

500 1 2 3 4 5

=0=0.25=0.5=0.75=1.0

=0=0.25=0.5=0.75=1.0

NS-SP-25H

NS-SP-50H

NS-SP-10H

NS-SP-45H

Type of U-pile unit B D

Singles or uncrimped doubles 0.40-0.80 0.30-0.55

Crimped or welded doubles 0.70-1.00 0.60-0.90

Where, B: Factor accounting for the possible reduction of the section modulus of

U-piles due to insufcient shear force transmission in the interlocksD: Factor accounting for the possible reduction of the moment of inertia of

U-piles due to insufcient shear force transmission in the interlocks

Reduction factor of sectional properties due to the lack of interlock integrity

* w: Steel sheet pile weight (t/m/side)* Trial calculation by us

Case example of a repeated use test using a vibratory hammer

Case example of a repeated use test using a press-in machine

19 20


Interlock integrity of sheet pilesWhen a wall using U-type steel sheet piles is subjected to bending due to soil pressure or other horizontal load, a large bending shear force occurs in the interlocks of the sheet piles because these interlocks are located at the center of the wall (neutral axis position).In this case, If the shear force doesnt transmit sufficiently between the adjacent the interlocks slip from each other, and the moment of inertia and section modulus of the wall of the sheet piles are reduced. This can be referred to as "lack of interlock integrity". And the degree of reduction is expressed by reduction factor. In contrast, for a wall using Hat-type steel sheet piles, the reduction of sectional properties is not required because interlocks are located at the most outer edge of the wall, which means that the shear force does not occur in the interlocks. Reduction factors of sectional properties from code to code. An example of the Eurocodes is shown below.

Interlock integrity in Hat-type steel sheet piles

Example of a trial design for temporary retaining walls

Steel-weight comparison between U-type and Hat-type, the sectional properties of which are reduced using by interlock factors

Bending tests for Hat-type steel sheet piles in the form of a wall as well as in the form of a single pile have been conducted. It is confirmed that the design values of the load-displacement relationship are in agreement with the experimental values. This demonstrates that the reduction of sectional properties is not required.

The reduction factor of U-type steel sheet piles is set as 0.45 for the moment of inertia, with 0.6 for the section modulus, in order to compare U-type and Hat-type using the same design conditions. NS-SP-25H (Hat-type) shows design results that are roughly equivalent to those of NS-SP-IV (U-type), and the number of short strut rows and the length of the steel sheet piles are mostly the same. However, the weight of NS-SP-25H (Hat-type) is 66% that of NS-SP-IV (U-type). When using NS-SP-45H (Hat-type), the working space increases during excavation with only one strut row, and the working efciency of concrete structure fabrication is greatly improved, enabling a construction cost reduction for the concrete structure. Although the weight increases compared with NS-SP-25H, NS-SP-45H is still 89% that of NS-SP-IV (U-type), and thus a weight reduction benet can be obtained.

We have conducted performance evaluation for the repeated use of Hat-type steel sheet piles based on the field tests. So far, we have conducted these tests for the cases of different installation methods such as vibratory hammer methods and press-in methods.

Advantage of no reduction of sectional properties due to interlock integrity

Cases of performance evaluation for the repeated use of Hat-type steel sheet piles

Reference: UK National Annex to Eurocode, 3. Design of steel structures, Part 5: Piling

(NA + A1: 2012 to BS EN 1993-5: 2007)

Quoted from the JASPP (Japanese Association for Steel Pipe Piles); "Hat-type sheet pile 900"

Pm0: Plastic load (test value)

Pm0: Plastic load (test value)

Py0: Yield load (standard value)

SingleUncrimped double

700

600

500

Load

[kN/

m]

400

300

200

100

00 50

1.6m 1.6m 1.6m

100 150 200

Displacement [mm]

Py0: Yield load (standard value)

- 1.00

- 3.00

- 5.00

-12.00

+ 0.00 - 1.00

- 3.00

- 5.00

-12.00

+ 0.00 - 1.00

- 5.00

-12.50

+ 0.00

SANDN =10=19kN/m=30

2

SANDN =10=19kN/m=30

2SANDN =10=19kN/m=30

2

Unplannedexcavation:-5.50



U-type(NS-SP-)w = 2.28 (t/m/side)

(1.00)

Hat-type(NS-SP-25H)w = 1.51 (t/m/side)

(0.66)

Hat-type(NS-SP-45H)w = 2.04 (t/m/side)

(0.89)

Neutral axis after forming the wall

Neutral axis per single pile in agreement with the neutral axis after forming the wall

Neutral axis per single

Hat-type steel sheet pile

U-type steel sheet pile

Soil pressure

Soil pressure

0

10,000

20,000

30,000

40,000

50,000

60,000

60 80 100 120 140 160 180 200 220 240

Mom

ent o

f ine

rtia

per 1

m o

f pile

wal

l w

idth

(cm4

/m)

0

500

1,000

1,500

2,000

2,500

3,000

3,500

60 80 100 120 140 160 180 200 220 240Unit mass per 1 m of pile wall width (kg/m2) Unit mass per 1 m of pile wall width (kg/m2)

Sect

ion

mod

ulus

per

1 m

of p

ile w

all

wid

th (c

m3/m

)

D=0.9

D=0.3

B=1.0

B=0.4

w

w

wL

w

w

wL

NS-SP-45H

NS-SP-50H NS-SP-50H

NS-SP-45H

NS-SP-25H

NS-SP-10H

NS-SP-25H

NS-SP-10H

0

10,000

20,000

30,000

40,000

50,000

60,000

60 80 100 120 140 160 180 200 220 240

Mom

ent o

f ine

rtia

per 1

m o

f pile

wal

l w

idth

(cm4

/m)

0

500

1,000

1,500

2,000

2,500

3,000

3,500

60 80 100 120 140 160 180 200 220 240Unit mass per 1 m of pile wall width (kg/m2) Unit mass per 1 m of pile wall width (kg/m2)

Sect

ion

mod

ulus

per

1 m

of p

ile w

all

wid

th (c

m3/m

)

D=0.9

D=0.3

B=1.0

B=0.4

w

w

wL

w

w

wL

NS-SP-45H

NS-SP-50H NS-SP-50H

NS-SP-45H

NS-SP-25H

NS-SP-10H

NS-SP-25H

NS-SP-10H

General

Pro

ducts

Attachm

ent

21 22


General

Pro

ducts

Attachm

ent

H-shape

-Basic type- -Alternated type-

900

Hat-type sheet pile

Note: The intermediate pile of the alternated type in the above case is NS-SP-10H.

Fillet weld

Weld zone

H-shape

Hat-type sheet pile Fillet weld

Availability of numerous sectional propertiesHat-type and H-shape combined high stiffness steel sheet piles come in combination of Hat-type sheet piles which have four types and H-shape sections which have many types. Eventually they provide more than 200 types of economical properties. (Section modulus per meter of wall : Approx.2,320 to 19,970cm3/m)

Ease of fabricationIt is easy to fabricate Hat-type and H-shape combined high stiffness steel sheet piles by combining Hat-type and H-shape with intermittent llet welding. Welding can be carried out at the site or the nearby yard or shop.

Excellent cost-effectivenessFrom the viewpoint of design for the Hat-type and H-shape combined high stiffness steel sheet pile, Hat-type functions as a continuous wall to sustain soil and water, and H-shape functions as a structural member to bear the bending moment. This makes it possible to use low-cost H-shape up to 50 to 70% of weight as well as avoiding use of expensive connectors to connect a sheet pile and a section.

Ease of InstallationAn ordinary vibratory hammer is directly applicable for driving. The Hat-type and H-shape combined high stiffness steel sheet pile, having higher moment of inertia per pile compared with Z-type and other type piles, is very easy to work with.

Hat-type and H-shape combined high stiffness steel sheet piles Examples of application using NSHYPER BEAMTMstandard JIS sizesOther sizes are possible; please contact us in advance.


Features

Hat-type and H-shape combined high stiffness steel sheet piles


Anchor

Tie rod


Shape

Examples of application Quay walls of port facilities

and shipyard dock walls Temporary and permanent

earth-retaining wall structures for open-cut tunnels

Earth-retaining walls for high embankments

Fillet weld: Welding ratio: 40-60%

- Basic type -

- Alternated type -

Hat-H sectionMass per m2 of wall Sectional area Section modulus Moment of inertia

kg/m2 cm2/m cm3/m cm4/m10H + H400x200x9x12x13 169 215 2,320 88,00010H + H450x200x9x12x13 172 220 2,560 106,00010H + H500x200x9x12x13 176 225 2,820 126,00010H + H500x200x9x16x13 190 242 3,270 142,00010H + H550x200x9x16x13 194 247 3,580 168,00010H + H550x200x9x19x13 204 260 3,940 181,00010H + H550x250x9x16x13 208 265 4,100 187,00010H + H600x200x12x16x13 212 271 4,270 208,00010H + H600x200x12x19x13 222 283 4,640 222,00010H + H650x200x12x19x13 228 290 5,060 258,00010H + H700x200x12x19x18 234 298 5,540 300,00010H + H700x200x12x22x18 244 311 5,960 317,00010H + H700x250x12x19x18 250 319 6,270 331,00010H + H700x200x12x25x18 254 323 6,370 335,00010H + H750x250x12x19x18 256 326 6,770 378,00010H + H750x250x12x22x18 268 342 7,330 403,00010H + H800x250x12x22x18 273 348 7,900 459,00010H + H900x250x14x19x18 286 365 8,810 563,00010H + H900x250x14x22x18 299 381 9,470 598,00010H + H900x250x16x22x18 314 400 9,890 616,00010H + H950x250x16x22x18 321 409 10,570 689,00010H + H1000x250x16x22x18 328 418 11,270 766,00010H + H1000x250x16x25x18 340 433 11,980 807,00010H + H1000x250x16x28x18 352 449 12,670 846,00010H + H1000x250x16x32x18 369 470 13,590 897,00025H + H1000x300x16x25x18 392 499 14,310 1,014,00025H + H1000x250x16x32x18 399 508 14,640 1,032,00025H + H1000x300x16x28x18 407 518 15,180 1,065,00025H + H1000x300x16x32x18 426 543 16,330 1,130,00025H + H1000x300x19x32x18 451 574 17,080 1,164,00025H + H1000x250x19x40x18 455 580 17,210 1,170,00025H + H1000x300x19x36x18 471 599 18,180 1,225,00025H + H1000x300x19x40x18 490 624 19,280 1,286,00025H + H1000x300x22x40x18 514 655 19,970 1,316,000

Hat-H sectionMass per m2 of wall Sectional area Section modulus Moment of inertia

kg/m2 cm2/m cm3/m cm4/m10H + H700x200x12x16x18 160 204 2,660 146,00010H + H700x200x12x19x18 165 210 2,870 155,00010H + H700x250x12x16x18 167 213 2,970 159,00010H + H700x200x12x22x18 170 216 3,080 164,00010H + H700x250x12x19x18 173 221 3,240 171,00010H + H750x250x12x19x18 176 224 3,480 194,00010H + H750x250x12x22x18 182 232 3,760 207,00010H + H800x250x12x22x18 185 235 4,040 235,00010H + H800x250x12x25x18 191 243 4,330 248,000

23 24


Installation method

Easy to fabricate on site

Case example of a repeated use test using a vibratory hammer

Case example of a repeated use test using a press-in machine

Installation by press-in machine

Manual for fabrication

Corrosion loss is considered, based on Eurocode 3, Design of steel structures - Part 5: Piling (BS EN 1993-5:2007). Sea-side corrosion loss (t1) is based on the recommended values of the seawater in a temperate climate in the zone of permanent immersion or in the intertidal zone, as in Table 4-2. Land-side corrosion loss (t2) is based on the recommended values of undisturbed natural soils (sand, silt, clay, schist, etc.), as in Table 4-1.

We have conducted performance evaluation for the repeated use of Hat-type and H-shape combined high stiffness steel sheet piles based on the field tests. So far, we have conducted these tests for the cases of different installation methods such as vibratory hammer methods and press-in methods.

The following shows the comparison result between soldier piles, which are generally used as steel material for temporary retaining walls in Southeast Asia, and Hat-type and H-shape combined high stiffness steel sheet piles.

Hat-type and H-shape combined high stiffness steel sheet piles can be easily fabricated on construction site or at a nearby yard or shop.We have prepared manuals for fabrication and can provide on-site instruction.

Examples of sectional properties after corrosion in the basic type

Cases of performance evaluation for the repeated use for Hat-type and H-shape combined high stiffness steel sheet piles

Trial calculation example of benefit in the case of the application of Hat-type and H-shape combined high stiffness steel sheet piles compared with existing temporary retaining walls

Fabrication method

Land side

Sea side

Installation by hydraulic hammer Installation by vibratory hammer

ItemSoldier Pile Hat+H

Built-up section Composite section

Outline

400 400

1600

900

900

900

Section

H-shape : UB610229243U-type steel sheet pile :NS-SP-IVSection Modulus Z=6,264cm3/mMoment of Inertia I=168,000cm4/m

Equivalent Z=6,770cm3/mNS-SP-10H+H7502501219

Equivalent I=168,000cm4/mNS-SP-10H+H550200916

400

350

300

250

200

150

100

50

0Soldier Pile

Stee

l wei

ght p

er 1

m o

f pile

wal

l wid

th (k

g/m2 )

Hat+H Hat+H(Equivalent Z) (Equivalent I)

25%

43%342

256194

* Trial calculation by us

Section modulus Moment of inertia

: Reduction ratio of sectional properties after corrosion (%)* Please contact us for more details.

100 (%)

0 25 50 t (year) t (year)

90

80

70

100 (%)

0 25 50

90

80

70

NS-SP-10H+H700200121913 NS-SP-10H+H900250141918

NS-SP-25H+H1000250163218

100 (%)


90

80

70

100 (%)

0 25 50

90

80

70

NS-SP-10H+H700200121913 NS-SP-10H+H900250141918

NS-SP-25H+H1000250163218

100 (%)


90

80

70

100 (%)

0 25 50

90

80

70

NS-SP-10H+H700200121913 NS-SP-10H+H900250141918

NS-SP-25H+H1000250163218

t1: Sea-side corrosion (mm) t=25years, t1=0.9mm t=50years, t1=1.75mmt2: Land-side corrosion (mm) t=25years, t2=0.3mm t=50years, t2=0.6mm

General

Pro

ducts

Attachm

ent

25 26


44.5

9.5

500

NS-SP-FL

47.0

12.7

500

NS-SP-FXL

This type of sheet pile boasts extremely high tensile strength at its interlocking sections, up to 5.88 MN per linear meter of joint length, and is suited for use in cellular-type structures, such as quay walls, manmade island seawalls, cofferdams, and other similar projects.In addition, we can provide the longest product currently possible: a maximum of 38.0 m.

Joint strengthType Tensile strength (MN/m)

NS-SP-FL 3.92

NS-SP-FXL 5.88

Shapes

High-speed construction The prefabricated sheet pile method can cut

construction time remarkably. Environmentally friendly methodNo soil improvement is needed in the case

of sheet piles reaching the supporting layer, as the embedded part of the sheet pile can resist earth pressure.

Features

NS-SP-FL NS-SP-FXL


Type


widthW

mm

Effectiveheight

hmm

Thicknesst

mm

Sectionalarea

cm

Momentof inertia

cm

Sectionmodulus

cm

Unitmass

kg/m

Sectionalarea

cm/m

Momentof inertia

cm/m

Sectionmodulus

cm/m

Unitmass

kg/m

NS-SP-FL 500 44.5 9.5 78.57 184 45.7 61.7 157.1 396 89 123

NS-SP-FXL 500 47.0 12.7 98.36 245 60.3 77.2 196.7 570 121 154

Deviation angleEach inter lock al lows a certain rotation. The maximum angle of deviationthe interlock swingfor the combination of the identical versions of straight web-type sheet piles is shown in the gure below.

Straight web-type sheet piles Steel sheet pile cell method

NS-SP-FL:=12.5NS-SP-FXL:=10

in-situ method is also available

General

Pro

ducts

Attachm

ent

Semi-prefabrication method

Construction method

lt is the unquestioned desire of man that the sea be aIlowed to remain in its natural state, clean and unpolluted. However, poIIution in one form or another has continued for many years, making it necessary for many countries to introduce IegisIation to protect the sea. Japan is no exception, and restrictions with regard to marine construction work and waste disposal have been tightened. For these reasons, Nippon SteeI Corporation has developed a non-polluting,high-speed prefabricated sheet pile ceIl method ( the Prefab CelI Method ),which incorporates all the advantages and none of the disadvantages of the conventional sheet pile cell method. With the new Prefab Cell Method, straight-web sheet piles are fixed in cellular form at an assembly site set up in caIm waters or on a speciaI barge near the installation site. The celI is then transported to the site and driven into the sea bed by a number of vibro-hammers operating simultaneously.

The Prefabricated Sheet Pile Cell Methodan Innovative, High-speed Marine Construction Method that Ensures Freedom from Sea Water Pollution.

ContentsIntroduction 1

Flow Chart of the Prefab Cell Method 2

Assembly Site and Vibro-hammers Play Important Roles in the Prefab Cell Method 4 Assembly site for the floating crane method 4 Vibro-hammers with multiple chucks 4Specification of Straight Web Sheet Pile 5 Material Quality 5 Tolerances 5 Sectional Properties 5

1

Notice: While every effort has been made to ensure the accuracy of the information contained within this publication, the use of the information is at the readers risk and no warranty is implied or expressed by Nippon Steel Corporation with respect to the use of information contained herein.The information in this publication is subject to change or modification without notice. Please contact the Nippon Steel office for the latest information.

Prefabrication method

600

130

10.3

600

180 13.4

600

210 18.0

400

170 15.5

400

125

13.0

400

100

10.5

500

200 24.3

500

225 27.6

400

150

13.1

600

130

10.3

600

180 13.4

600

210 18.0

400

170 15.5

400

125

13.0

400

100

10.5

500

200 24.3

500

225 27.6

400

150

13.1

600

130

10.3

600

180 13.4

600

210 18.0

400

170 15.5

400

125

13.0

400

100

10.5

500

200 24.3

500

225 27.6

400

150

13.1

27 28


U-type sections have been widely used for various types of permanent and temporary structures, and are one of the most familiar sheet piles among both designers and users.

NS-SP-,,A,,L and L are solidly designed. These sections are especially suitable for repeated use, and have acquired high market acceptance from users.

U-type sections offer section modulus ranging from 874 cm3/m to 3,820 cm3/m.

Type


widthW

mm

Effectiveheight

hmm

Thicknesst

mm

Sectionalarea

cm

Momentof inertia

cm

Sectionmodulus

cm

Unitmass

kg/m

Sectionalarea

cm/m

Momentof inertia

cm/m

Sectionmodulus

cm/m

Unitmass

kg/m

NS-SP- 400 100 10.5 61.18 1,240 152 48.0 153.0 8,740 874 120

NS-SP- 400 125 13.0 76.42 2,220 223 60.0 191.0 16,800 1,340 150

NS-SP-A 400 150 13.1 74.40 2,790 250 58.4 186.0 22,800 1,520 146

NS-SP- 400 170 15.5 96.99 4,670 362 76.1 242.5 38,600 2,270 190

NS-SP-L 500 200 24.3 133.8 7,960 520 105 267.6 63,000 3,150 210

NS-SP-L 500 225 27.6 153.0 11,400 680 120 306.0 86,000 3,820 240

NS-SP-W 600 130 10.3 78.70 2,110 203 61.8 131.2 13,000 1,000 103

NS-SP-W 600 180 13.4 103.9 5,220 376 81.6 173.2 32,400 1,800 136

NS-SP-W 600 210 18.0 135.3 8,630 539 106 225.5 56,700 2,700 177

Sectional properties WX X

t

h

: Reduction ratio after corrosion

I, Z : Moment of inertia and section modulus after corrosion

Steps to calculate sectional properties after corrosion; Assume the corrosion rate and lifetime of the facility,

and calculate the corrosion loss of the marine side t and that of the land side tmm.

Calculate the corrosion loss rate t/t Using the corrosion loss of the marine side tmm

and the corrosion loss rate, obtain the reduction ratio of the sectional properties, from the following graphs. Calculate the sectional properties after corrosion loss,

Z and I, by multiplying the sectional properties before the corrosion loss Z and I by the reduction ratio .

Section modulus Z=Z Moment of inertia I= I

t1 t1

t1

t2

t1t2

t2

t1

t2

t2

t1t2

Marine side

Full length

Land side

: reduction ratio of sectional properties after corrosion%

t, t : corrosion loss of marine side and land sidemm

: corrosion loss rate, t/tNote : Only the illustrated ranges are effective in the following graphs. Io, Zo : Moment of inertia and section modulus without corrosion

loss


600

NS-SP-

NS-SP-

NS-SP-W

NS-SP-

NS-SP-L

NS-SP-W NS-SP-W

NS-SP-L

NS-SP-A

ShapesNS-SP-W NS-SP-W NS-SP-W

CompatibilityNS-SP-

NS-SP-L NS-SP-LNS-SP-W

NS-SP-NS-SP-

NS-SP-W

NS-SP-A

NS-SP-W

Each interlock allows a certain rotation. The minimum angle of deviation (the interlock swing) for the combination of the identical versions of U-type sheet piles is shown in the gure below.

Deviation Angle

6

6

NS-SP- NS-SP- NS-SP-A

NS-SP- NS-SP-L NS-SP-L

U-type sheet piles

General

Pro

ducts

Attachm

ent

Steel pipe sheet pile Steel sheet pile Combined wallDiameter Thickness Interval of joint

Moment of inertia

Pipe weight

Joint weight Type

Number of sheet

piles

Width Moment of inertia Pile weight WidthMoment of

inertiaSection modulus Unit mass

D(mm) t(mm) bj(mm) (cm/pile) (kg/m/pile) kg/m/2piles bsp(mm) (cm/bsp) (kg/m/pile) (mm) (cm/m) (cm/m) (kg/m/m)

800 9.0 965 174,940 176 69.4 NS-SP-10H 1 900 9,450 86 1,865 98,858 2,471 178 813 9.0 978 183,707 178 69.4 NS-SP-10H 1 900 9,450 86 1,878 102,841 2,530 178 864 10.0 1,029 244,621 211 69.4 NS-SP-10H 1 900 9,450 86 1,929 131,697 3,049 190 900 10.0 1,065 276,876 219 69.4 NS-SP-10H 1 900 9,450 86 1,965 145,698 3,238 191 914 11.0 1,079 318,112 245 69.4 NS-SP-10H 1 900 9,450 86 1,979 165,502 3,621 202 965 11.0 1,130 375,107 259 69.4 NS-SP-10H 1 900 9,450 86 2,030 189,418 3,926 204

1,000 11.0 1,165 417,922 268 69.4 NS-SP-10H 1 900 9,450 86 2,065 206,940 4,139 205 1,016 12.0 1,181 476,985 297 69.4 NS-SP-10H 1 900 9,450 86 2,081 233,728 4,601 218 1,067 12.0 1,232 553,420 312 69.4 NS-SP-10H 1 900 9,450 86 2,132 263,985 4,948 219 1,100 13.0 1,265 655,774 348 69.4 NS-SP-10H 1 900 9,450 86 2,165 307,234 5,586 233 1,118 13.0 1,283 688,890 354 69.4 NS-SP-10H 1 900 9,450 86 2,183 319,870 5,722 234 1,168 13.0 1,333 786,691 370 69.4 NS-SP-10H 1 900 9,450 86 2,233 356,502 6,104 236 1,200 14.0 1,365 917,281 409 69.4 NS-SP-10H 1 900 9,450 86 2,265 409,117 6,819 250 1,219 14.0 1,384 962,072 416 69.4 NS-SP-10H 1 900 9,450 86 2,284 425,323 6,978 250 1,270 14.0 1,435 1,089,459 434 69.4 NS-SP-10H 1 900 9,450 86 2,335 470,584 7,411 252 1,300 15.0 1,465 1,250,028 475 69.4 NS-SP-10H 1 900 9,450 86 2,365 532,504 8,192 267 1,321 15.0 1,486 1,312,315 483 69.4 NS-SP-10H 1 900 9,450 86 2,386 553,920 8,386 268 1,372 16.0 1,537 1,566,821 535 69.4 NS-SP-10H 1 900 9,450 86 2,437 646,755 9,428 283 1,400 16.0 1,565 1,665,889 546 69.4 NS-SP-10H 1 900 9,450 86 2,465 679,596 9,709 285 1,422 16.0 1,587 1,746,594 555 69.4 NS-SP-10H 1 900 9,450 86 2,487 706,033 9,930 286 1,473 17.0 1,638 2,060,877 610 69.4 NS-SP-10H 1 900 9,450 86 2,538 815,668 11,075 302 1,500 17.0 1,665 2,177,656 622 69.4 NS-SP-10H 1 900 9,450 86 2,565 852,607 11,368 303 1,524 17.0 1,689 2,285,093 632 69.4 NS-SP-10H 1 900 9,450 86 2,589 886,198 11,630 304 1,575 18.0 1,740 2,668,433 691 69.4 NS-SP-10H 1 900 9,450 86 2,640 1,014,273 12,880 321 1,600 18.0 1,765 2,799,033 702 69.4 NS-SP-10H 1 900 9,450 86 2,665 1,053,761 13,172 322 1,626 18.0 1,791 2,939,307 714 69.4 NS-SP-10H 1 900 9,450 86 2,691 1,095,703 13,477 323 1,676 19.0 1,841 3,394,987 776 69.4 NS-SP-10H 1 900 9,450 86 2,741 1,241,951 14,820 340 1,700 19.0 1,865 3,544,640 788 69.4 NS-SP-10H 1 900 9,450 86 2,765 1,285,292 15,121 341 1,727 19.0 1,892 3,718,184 800 69.4 NS-SP-10H 1 900 9,450 86 2,792 1,335,017 15,461 342 1,778 20.0 1,943 4,267,787 867 69.4 NS-SP-10H 1 900 9,450 86 2,843 1,504,374 16,922 360 1,800 20.0 1,965 4,430,010 878 69.4 NS-SP-10H 1 900 9,450 86 2,865 1,549,442 17,216 361 1,829 21.0 1,994 4,874,533 936 69.4 NS-SP-10H 1 900 9,450 86 2,894 1,687,507 18,453 377 1,880 21.0 2,045 5,298,742 963 69.4 NS-SP-10H 1 900 9,450 86 2,945 1,802,320 19,174 380 1,900 21.0 2,065 5,471,593 973 69.4 NS-SP-10H 1 900 9,450 86 2,965 1,848,456 19,457 381 1,930 22.0 2,095 6,001,716 1,035 69.4 NS-SP-10H 1 900 9,450 86 2,995 2,006,933 20,797 398 1,981 22.0 2,146 6,495,920 1,063 69.4 NS-SP-10H 1 900 9,450 86 3,046 2,135,569 21,561 400 2,000 22.0 2,165 6,686,751 1,073 69.4 NS-SP-10H 1 900 9,450 86 3,065 2,184,589 21,846 401

29 30


bj bsp

t

D

b

bj bsp

t

D

b

Excellent cost-effectiveness Combined walls come in combination of U-type / Hat-type sheet piles which have seven types and steel pipe sheet piles which have many types. Eventually they provide more than 74 types of economical properties. (Section modulus per meter of wall : Approx. 2,469 to 21,846 cm3/m) High drivability

The ease in connecting large joints realizes quick and high-quality construction. High quality

Using Nippon steel & Sumitomo metals piles ensures high quality, high strength and high stiffness. Function to support vertical loads

Steel pipe sheet piles function as supporting piles for vertical load in addition to retaining walls.

FeaturesOther sizes are available upon request. Sectional properties

Steel pipe sheet pile NS-SP-w 2pieces

Steel pipe sheet pile NS-SP-10H 1piece

Quay walls of port facilities and shipyard dock walls Earth-retaining walls for high embankments

Examples of application Vibratory hammer and hydraulic hammer

are also available for installation.

Construction method

Shapes

Steel pipe sheet piles

( 800 to 2,000)

Sheet pilesNS-SP-w (2pieces)NS-SP-w (2pieces)NS-SP-w (2pieces)NS-SP-10H (1piece)NS-SP-25H (1piece)NS-SP-45H (1piece)NS-SP-50H (1piece)

Steel pipe sheet pile Steel sheet pile Combined wallDiameter Thickness Interval of joint

Moment of inertia

Pipe weight

Joint weight Type

Number of sheet

piles

Width Moment of inertia Pile weight WidthMoment of

inertiaSection modulus Unit mass

D(mm) t(mm) bj(mm) (cm/pile) (kg/m/pile) kg/m/2piles bsp(mm) (cm/bsp)

(kg/m/2piles) (mm) (cm/m) (cm/m) (kg/m/m)

800 9.0 965 174,940 176 69.4 NS-SP-w 2 1,200 38,880 163 2,165 98,753 2,469 189 813 9.0 978 183,707 178 69.4 NS-SP-w 2 1,200 38,880 163 2,178 102,188 2,514 189 864 10.0 1,029 244,621 211 69.4 NS-SP-w 2 1,200 38,880 163 2,229 127,176 2,944 199 900 10.0 1,065 276,876 219 69.4 NS-SP-w 2 1,200 38,880 163 2,265 139,394 3,098 200 914 11.0 1,079 318,112 245 69.4 NS-SP-w 2 1,200 38,880 163 2,279 156,630 3,427 210 965 11.0 1,130 375,107 259 69.4 NS-SP-w 2 1,200 38,880 163 2,330 177,662 3,682 211

1,000 11.0 1,165 417,922 268 69.4 NS-SP-w 2 1,200 38,880 163 2,365 193,135 3,863 212 1,016 12.0 1,181 476,985 297 69.4 NS-SP-w 2 1,200 38,880 163 2,381 216,641 4,265 222 1,067 12.0 1,232 553,420 312 69.4 NS-SP-w 2 1,200 38,880 163 2,432 243,524 4,565 224 1,100 13.0 1,265 655,774 348 69.4 NS-SP-w 2 1,200 38,880 163 2,465 281,784 5,123 236 1,118 13.0 1,283 688,890 354 69.4 NS-SP-w 2 1,200 38,880 163 2,483 293,078 5,243 236 1,168 13.0 1,333 786,691 370 69.4 NS-SP-w 2 1,200 38,880 163 2,533 325,900 5,580 238 1,200 14.0 1,365 917,281 409 69.4 NS-SP-w 2 1,200 38,880 163 2,565 372,743 6,212 250 1,219 14.0 1,384 962,072 416 69.4 NS-SP-w 2 1,200 38,880 163 2,584 387,335 6,355 251 1,270 14.0 1,435 1,089,459 434 69.4 NS-SP-w 2 1,200 38,880 163 2,635 428,180 6,743 253 1,300 15.0 1,465 1,250,028 475 69.4 NS-SP-w 2 1,200 38,880 163 2,665 483,606 7,440 266 1,321 15.0 1,486 1,312,315 483 69.4 NS-SP-w 2 1,200 38,880 163 2,686 503,013 7,616 266 1,372 16.0 1,537 1,566,821 535 69.4 NS-SP-w 2 1,200 38,880 163 2,737 586,622 8,551 280 1,400 16.0 1,565 1,665,889 546 69.4 NS-SP-w 2 1,200 38,880 163 2,765 616,509 8,807 282 1,422 16.0 1,587 1,746,594 555 69.4 NS-SP-w 2 1,200 38,880 163 2,787 640,598 9,010 283 1,473 17.0 1,638 2,060,877 610 69.4 NS-SP-w 2 1,200 38,880 163 2,838 739,820 10,045 297 1,500 17.0 1,665 2,177,656 622 69.4 NS-SP-w 2 1,200 38,880 163 2,865 773,606 10,315 298 1,524 17.0 1,689 2,285,093 632 69.4 NS-SP-w 2 1,200 38,880 163 2,889 804,365 10,556 299 1,575 18.0 1,740 2,668,433 691 69.4 NS-SP-w 2 1,200 38,880 163 2,940 920,792 11,693 314 1,600 18.0 1,765 2,799,033 702 69.4 NS-SP-w 2 1,200 38,880 163 2,965 957,073 11,963 315 1,626 18.0 1,791 2,939,307 714 69.4 NS-SP-w 2 1,200 38,880 163 2,991 995,650 12,247 316 1,676 19.0 1,841 3,394,987 776 69.4 NS-SP-w 2 1,200 38,880 163 3,041 1,129,116 13,474 332 1,700 19.0 1,865 3,544,640 788 69.4 NS-SP-w 2 1,200 38,880 163 3,065 1,169,098 13,754 333 1,727 19.0 1,892 3,718,184 800 69.4 NS-SP-w 2 1,200 38,880 163 3,092 1,215,013 14,071 334 1,778 20.0 1,943 4,267,787 867 69.4 NS-SP-w 2 1,200 38,880 163 3,143 1,370,154 15,412 350 1,800 20.0 1,965 4,430,010 878 69.4 NS-SP-w 2 1,200 38,880 163 3,165 1,411,882 15,688 351 1,829 21.0 1,994 4,874,533 936 69.4 NS-SP-w 2 1,200 38,880 163 3,194 1,538,230 16,820 366 1,880 21.0 2,045 5,298,742 963 69.4 NS-SP-w 2 1,200 38,880 163 3,245 1,644,774 17,498 368 1,900 21.0 2,065 5,471,593 973 69.4 NS-SP-w 2 1,200 38,880 163 3,265 1,687,637 17,765 369 1,930 22.0 2,095 6,001,716 1,035 69.4 NS-SP-w 2 1,200 38,880 163 3,295 1,833,150 18,996 385 1,981 22.0 2,146 6,495,920 1,063 69.4 NS-SP-w 2 1,200 38,880 163 3,346 1,952,902 19,716 387 2,000 22.0 2,165 6,686,751 1,073 69.4 NS-SP-w 2 1,200 38,880 163 3,365 1,998,583 19,986 388

Combined walls

Joint thickness is 9mm or 11mm.Please contact us for material quality of steel pipe sheet pile.

Please contact us for section properties after corrosion. In this case, length of steel pipe sheet pile and sheet pile are same.

Combined wall Combined wall

Anchor

Tie rod

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Shapes

13.0

600

200


Type


widthW

mm

Effectiveheight

hmm

Thicknesst

mm

Sectionalarea

cm

Momentof inertia

cm

Sectionmodulus

cm

Unitmass

kg/m

Sectionalarea

cm/m

Momentof inertia

cm/m

Sectionmodulus

cm/m

Unitmass

kg/mNS-SP-J 600 200 13.0 111.2 7,250 705 87.3 185.3 12,090 1,175 145

t

W

h

Close-proximity installationNS-SP-J piles can be installed in close proximity to existing structures, permitting the construction of retaining walls abutting site boundaries and making maximum use of the site area.

100% intelock integrityAs interlocks are located on the outermost side of the wall, there is no need to consider the reduction of sectional properties due to slip on interlocks, and this permits economical design. Cost-saving and Work-shortening ofTemporary Work

Cost-saving and the shortening of temporary work timeCompared to conventional steel sheet piles for temporary work with an effective width of 400 mm, NS-SP-J has an effective width of 600 mm. This makes it possible to reduce the number of installed piles, with less cost and improved water tightness.

Deviation angle

4

4

TypeSectional properties without corrosion loss Sectional properties with 1 mm of corrosion loss per side

I0cm/m

Z0cm/m

%

Icm/m

Zcm/m

NS-SP-J 12,090 1,175 85 10,300 999

Sectional properties after corrosion

Io, Zo : Moment of inertia and section modulus without corrosion loss

: Reduction ratio after corrosion I, Z : Moment of inertia and section modulus after corrosion

Steps to calculate sectional properties after corrosion; Assume the corrosion rate and lifetime of the facility, and calculate the

corrosion loss of the marine side t (mm) and that of the land side t (mm). Calculate the corrosion loss rate ( t/t). Using the corrosion loss of the marine side t (mm) and the corrosion

loss rate a, obtain the reduction ratio of the sectional properties from the following graphs.

Calculate the sectional properties after corrosion loss, Z and I, by multiplying the sectional properties before corrosion loss, Z and I, by the reduction ratio .

Section modulus Z Z Moment of inertia I I

=1.0=1.0=0.75=0.75

=0.25=0.25 =0=0

=0.5=0.5

t1mm

%

100

90

80

70

60

500 1 2 3 4 5 6


: reduction ratio of sectional properties after corrosion%t, t : corrosion loss of marine side and land sidemm

: corrosion loss rate, t/tNote : Only the illustrated ranges are effective in the following graphs.

t2

t1

t2

t1

t2

t1

t2

t1

t2

t1

* NS-SP-J can be interlocked with some U-type sheet piles. The compatible types for interlocking depend on the usage conditions at the site. Please consult Nippon Steel & Sumitomo Metal for details.

NS-SP-J

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Shapes

Compatibility

NS-SP- NS-SP-LNS-SP-

NS-SP-C

NS-SP-

NS-SP-C

NS-SP-Ce

NS-SP-J


W

t

Corner jointOrdinary joint

h

W

Corner joint Ordinary jointth

Type

Dimension Per pileEffective

widthW

mm

Effectiveheight

hmm

Thicknesst

mm

Sectionalarea

cm

Momentof inertia

cm

Sectionmodulus

cm

Unitmass

kg/mNS-SP-C 400 125 13.0 79.63 2,330 237 62.5

NS-SP-Ce 400 125 13.0 76.40 1,930 222 60.0

NS-SP-C 400 170 15.5 96.76 4,630 337 76.0

NS-SP-CNS-SP-C

Corner-section sheet pile

U-type sheet pile

90

U-ty

pe s

heet

pile

InstallationNS-SP-CNS-SP-C

Odd

Even

Even

EvenEvenOdd

NS-SP-Ce

Corner-section sheet pile

U-ty

pe s

heet

pile

U-type sheet pile

NS-SP-Ce

Even

Odd

Even

Odd

Odd

Even

Corner-section sheet piles are a newly developed type produced by rolling, to replace the conventional T-shape corner-sheet piles produced by welding. Thus, these eliminate the need for welding and other fabrication processes and are far lighter in weight.

For assembly, the conventional cast equipment can be used as-is.

In particular, Larssen sheet piling has been adopted as a base for the shape of corner joints, in order to prevent detachment, and therefore, particularly, joint performance such as tment and repetition endurance is excellent.

High reliability

Corner-section Sheet Piles: As Rolls

General

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elevation view

plain view

elevation view

plain view

elevation view

plain view

elevation view

plain view

Execution details: Tie rods, waling

Corner section: Hot-extruded shape steel

One of the methods for connecting a corner is the method of using hot-extruded shape steel, which is a product formed using a hot-extrusion method and not necessarily involving welding at the site. As shown in the gures below, this product is applicable for use at various angles.

V20JP is produced in Japan by Nippon steel & Sumitomo Metal Coporation under authority of PilePro LLC USA

To support a part of the external force applied to the steel sheet pile, sheet pile walls are often provided with waling, tie rods, and tie wires at the upper part of the steel sheet pile. The following gures show an installation example of a tie rod and waling.

front

side

shee

t pile

anch

or s

heet

pile

turnbuckle

walingring joint

Corner section: Irregular-shape steel sheet piles

Irregular-shape steel sheet piles are used for the change of the driving normal line of a steel sheet pile, for the correction of the intersection point of steel sheet pile walls, or for the correction of the slope of the normal line of a steel sheet pile wall. Irregular-shape steel sheet piles are manufactured by vertically cutting the web, assembling them in the intended shape, and welding them.

; welding point

; welding point

Example of the shape of the connection of U-type sheet pile Example of the shape of the corner of U-type sheet pile

Angle-correction steel sheet piles

An angle-correction sheet pile corrects the angle when driving the sheet pile. This type of sheet pile is produced by either of the following two construction methods: a method that obliquely cuts two steel sheet pile webs to be assembled; and a method that cuts the center of the steel sheet pile web and assembles it by inserting a trapezoidal steel plate into the center. When using a trapezoidal steel plate, it is necessary to use steel with a strength equivalent to or stronger than that of the steel sheet pile base material.

trapezoidal shape steel plate(material is equal or stronger than the base material)

sheet pile

t2t2

t1 t1

(b) Use trapezoidal shape steel plate(Need one piece of sheet pile)

t1>t2

(a) Cut sheet pile obliguely(Need two pieces of sheet piles)

trapezoidal shape steel plate(material is equal or stronger than the base material)

sheet pile

t2t2

t1 t1

Example of a tie rod system

Setting waling on back face of the sheet pile

Setting waling on front face of the sheet pile

Setting waling on front face of the sheet pile

Setting waling on back face of the sheet pile

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Driving of the Hat-type sheet pile

Driving of a U-type sheet pile

Driving of a U-type sheet pileExecution details: Guide frames

Exection details : Concrete coping

In installation of steel sheet piles, it is necessary to install guide frames to ensure correct driving position and the stability of the steel sheet piles during construction. Here, one example is shown in which two rows of guide frames parallel to the normal line are driven at intervals of 2 to 4 m and in which the guide beam is mounted inside.

To prevent water from entering the joint or to improve joint efciency of U-type steel sheet pile, it is usually install the concrete coping at the top of steel sheet pile walls. Here, one example shown in below.

24m

guide pileguide frame

D13D13 D13 D13,

Side view Plain view

5070

HH

2H+(25)cm

guide pile

guide frame

sheet pile

guide pile

Vibration method

Driving method

Sheet piles are driven into the ground by transferring t o t h e m u p - a n d - d o w n vibratory forces generated by a vibratory hammer. As percussion force is not used, the pile head is not damaged, driving efciency is high, and it is useful for both driving and pulling piles.

Driving of a Hat-type and H-shape combined high stiffness steel sheet pile

General

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Sheet piles are pressed-in using hydraulic mechanism by grasping the middle place of sheet pile while taking reaction by holding driven piles. Driving machine is compact, and need no crane, though it needs crane separately for hanging sheet piles. It is applicable to the driving conditions such as narrow places and low clearance places. It is also possible to drive piles in conditions of low noise and low vibration. When ground is so hard that driving is difcult by using only pressing machine, it is useful to use water jet cutter together.

Press-in method

Pressing-in of U-type sheet pile

Press-in machine for U-type sheet pile

Plain view

Side view

Pressing-in of NS-SP-J

Press-in machine for NS-SP-J (close-proximity installation)

Plain view

Side view

Pressing-in of Hat-type sheet pile

Press-in machine for Hat-type sheet pile

Plain view

Side view

Example of construction using a hydraulic hammer

Percussion methodA percussion method is a method in which steel sheet piles are driven into the ground with the percussion force of a hydraulic hammer or diesel hammer. To prevent buckling at the head of the sheet pile, a pile cap is generally attached to the head of the sheet pile. Sheet piles cam be easily driven with high percussion force at a location with large joint resistance or ground resistance.

Example of a pile cap for Hat-type and H-shape combined high stiffness steel sheet piles

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(b) Hat-type sheet pile

(a) U-type sheet pile

When steel sheet piles are used, multiple sheet piles are sometimes joined to obtain a specied length.In general, a weld joint is used.

When welding, it's need to choice welding rod as considering base material, thickness of sheet pile, position of weld. Here, shows the examples of welding material of JIS.

A steel sheet pile consists of continuous steel material and is itself water-impermeable material. However, considering the ease of driving, a slight gap is provided at the joint.It is known that, generally, the amount of water leaking from the joint is reduced over time by clogging sand.However, if you would like to stop water at an early stage, it is necessary to take measures to stop water at the joint.The most popular method is when swelling water-stop material is preliminary applied to the joint. Various water-stop materials have been developed for this. For details, please contact us.

The following methods are available to prevent the corrosion of steel sheet piles.(1) Designing the sheet pile considering corrosion allowance(2) Cladding using concrete to prevent corrosion(3) Coating the sheet pile to prevent corrosion

Four types are available with regard to this method: by painting; using organic lining: using petrolatum lining; or using inorganic lining.

(4) Electrolytic protection methodTwo types are available with regard to this method: by externally supplying a protection power source to prevent corrosion (external power method) or by attaching alloy such as aluminum and magnesium to the steel material as a sacricial anode (galvanic anode method).It is necessary to select the most-optimum corrosion prevention method according to the design and site condition. For details, please contact us.

Weld joint (temporary / permanent installation) Water-blocking material

Application type Flow type

Swellable water-blocking material

hw

bp

tp

bp bp

tp

p

bp

p

gouging after weldinggouging after welding PL

shop welding (, ) shop welding (LLWWW ): welding area: non welding area

hw

tp1

tp2

bp1

bp2

penetration welding or gouging after welding

bp

p

p: welding area: non welding area

Atmosphere above the sea

Splash zoneD

epth Tidal zone

In seawater

In seabed

Seabed surface

LWL (mean low-water spring)

HWL (mean high-water spring) MSL (average sea level)

MLWL (mean low water level)

H.W.L.

L.W.L.

M.L.W.L.

(A) (B) (C)

L.W.L. -1m

G.L.

Atmosphere above the sea

Coatingand / or

Cladding

Coatingor

Cladding

Electrolytic protection

Electrolytic protection Corrosion

allowance

Splash zone

Tidal zone

In seawater

In seabed

Coatingand / or

Cladding

Joint method Watertightness

Anticorrosion system

Application example water-blocking material

Fitting example of applied water-blocking material

Steel sheet pile material

Hand welding Non-gas shielded arc welding

Spec Grade Spec Grade

SY295 SYW295

Low-hydrogen type coated electrode for grade 490N/mm

JIS Z3212 D5016

Non-gas flux cored wire electrode for grade 490N/mm

JIS Z3313 YFW-S50DX

SY390 SYW390

Low-hydrogen type coated electrode for grade 570N/mm

JIS Z3212 D5816

Steel sheet pile material

CO gas shielded arc welding

Spec Grade Spec Grade

SY295 SYW295

Solid wire electrode for grade490N/mm

JIS Z3312 YGW11

Flux cored wire electrode for grade 490N/mm2

JIS Z3313 YFW-C50DX

SY390 SYW390

Solid wire electrode for grade570N/mm

JIS Z3312 YGW12

Flux cored wire electrode for grade 570N/mm2

JIS Z3313 YFW-C60FX Example of the corrosion classification of port structures

and the applied corrosion protection methodCorrosion condition at the sea area

General

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Documents

K007en