PK KadmasinghPradosh Das

GPTA Training GPTA Training (Technical)(Technical)

GPTA Training GPTA Training (Technical)(Technical)

G.P.T.A. TRAINNING TECHNICAL SESSION1. 1. Unit of measurement.

Type British or FPS Unit SI Units (International Standard Units

Length 1 Inch= 25.4 MM 1 MM= 0.03937 Inch

1 Foot= 0.3048 Metre 1 Metre= 3.2808 Feet

1 Mile= 52798.5564 Feet 1 KM= 1000 Metre

1 Mile= 1.6093 Km 1 Km= 0.6214 Mile

Area 1 Sq. Feet= 0.0929 Sq Mtr. 1 Sq Mtr.= 10.7639 Sq. Ft.

1 Acre= 43560 Sq. Ft. 1 Acres= 100 Sq. Mtr.

1 Acre= 4046.86 Sq. Mtr 1 Hectare= 100 Acres

1 Acre= 0.4047 Hectare 1 Acres= 1076.39 Sq. Ft.

1 Hecatere= 2.471 Acre

Volume 1 Cft= 0.2832 Cum 1 Cum= 35.31 Ctf

1 Acreft= 43560 Ctf 1 Hec. Mtr. 10000 Sq. Mtr

2. Survey and Investigation• Field Visit.• Land Particular.• Taking Initial level.• Initial Photographs.• Collecting information from local people about field

condition.• Information about nearest approved quarry.• Soil condition by digging trail pit. • Information about Job Seekers.• Feasibility of the Project.

Preparation of Estimate

• Plan, Elevation, Section of the project (according to field condition).

• Lead statement according to quarry chart.

• Analysis of rates should be prepared as per current Schedule of rate / Prescribed labour rate.

• Calculation of quantities according to plan.

• Labour and Material statement.

• Project report (Report should be self explanatory about the project)

• Preparation of Bar Chart.

• Preparation of peoples estimate

• Estimate should be Technically Sanctioned & Administratively approved By competent authority as per the power assignment to them. [T.S.:- Rs Up to _ J.E./GPTA- Rs3.00 lakhs, A.E.-Rs6.00 Lakhs, E.E.- Rs50.00 lakhs]

[A/A:- Rs up to _ BDO- Rs10.00Lakhs, Chairperson- Rs20.00Lakhs,CEO- >Rs20.00 lakhs ]

• Estimate prepared as per sanctioned amount.

•What is an Estimate?•Why we will make an estimate?•How to make an Estimate?

Types of Estimate

Earthen Road

New Formation Existing Formation Ghat Road

Paved Road

WBM StandardC.C.Road with Drain

C.C. Road with out drain

Small Structures

H.P. Culvert R.C.C. Culvert CausewaysRetaining & Guard Walls

Water Body

Renovation of village Ponds

Mo Pokhori W.H.S. with CanalExcavation of new Tanks

Building

Load Bearing wallsTile Roof/

AC/GCI sheet RoofIAY/MoKudiaFrame Structures

EXECUTION• Road work-

Earthen road• Demarcation for new work by the competent authority .• Alignment- Proper alignment should be given according to the site

condition• Initial Level shall be taken.• Curve- Fixing of curves ( Vertical, Horizontal)• Gradient-Proper gradient should be maintained. (Minimum 1:50 for

rural road, 1:18 for Ghat) • Camber-Proper camber should be maintained.• Bar chart• Drainage• Compaction should be made by PRR• Side Slope of the formation ( Minimum 1:1 for Cutting ,1:1.5 for

fillmg)

Cement Concrete road• It should be inside the habitation.• Excavation of cut off walls including shallow drains if

required.• Filling of Sand to have a proper sub base and level with

minm. Thickness of 6 inches.• Side Shuttering for cut walls.• Construction/Expansion Joint should be at uniform

interval• C.C ( 1:4:8) with 40mm size H.B.G. Metal (Min 4 inch)• C.C (1:2:4) with 12mm size H.B.G chips (Min 3 inch)• Proper camber should be maintained.• Proper curing must be ensured.• Filling of both side flanks should be by earth/ moorum.

W.B.M Road (Grade -I)• Earth work in Flank dressing.

• Providing Morrum and sand admixture( 75% morrum and 25 % sand) in sub-base with proper camber and compaction by PRR with watering.

• Providing Grade –I metalling with 40mm to 90mm size hard stone metal filling interstices with morrum/ stone screenings and crusher dust.

• Proper compaction shall be made by PRR including watering.

• Filling of Flanks by Morrum / Excavated earth from the drain.

• Proper drainage should be ensured.• Heavy traffic shall not be allowed.

CD WORKS• The CD Works having less than 6 Mtr span is a

culvert.• A field visit and reconnaissance survey to be done

for finalising the number of CD Works and its position.

• To find out the vent size, the bed width of the existing nallah should be taken into consideration.

• Emphasis should be given to the U/S and D/S cut off wall of the structure prior to the construction of the apron.

RENOVATION OF TANK• Initial Photograph and initial Level shall be taken before

execution.• Assuming a final level, lead & lift and the cost of the

quantity shall be calculated depending upon the funds position.

• Slope of the Embankment should be maintained at 1.5:1.• Excavation should be done from the middle of portion the

tank and the earth should be deposited at the outside slope of the bank.

• Provision shall be made to dispose the excess earthwork.

• Provision for turffing, slope packing, inlet, outlet and

bathing ghat shall be made according to the requirement.

NEW TANK/ MO POKHARI• Demarcation of the area must be done prior to the lay out

by the competent revenue authority.• The area excavated/embankment area and the toe line

should be marked before execution.• Initial Level must be ensured.• Toe line of the embankment must be 10ft away from the

excavation line.• Earth excavated shall be laid in layers of 30cm including

breaking clods to 5 cm to 7 cm size.• Provision shall be made to dispose the excess earthwork.• Proper benching of side slope area shall be made.• Provision for turffing, slope packing, inlet, outlet and

bathing ghat shall be made according to the requirement.

BUILDING• Construction area must be demarcated before execution of work.

• A site plan showing north point should be made.

• Initial photographs shall be taken before execution in case of incomp./renovation works.

• Drawing showing the plan, elevation and cross section must be approved by the competent authority.

• Trial pit section of the soil/soil test report should be obtained.

• Design particulars.

• Detail specification of the items as per codal provision.

• Lay out should be given as per the approved drawing.

• In RCC works pre-measurement of steel must be taken and it should be chck measured by the Asst. Engineer before laying of concrete.

• Minimum 50 dia of the steel shall be provided in case of lapping.

• Minimum cover to the steel should be maintained as per ISI code.

• Centering and shuttering must be certified by the Asst. Engineer before pouring of concrete.

• Key holes should be provided in between every lift of the column.

• In case of masonry walls, joint should be left in stepped manner.

• A thin membrane must be provided in between RCC and masonry joints.

• Before doing brick masonry, brick should be sub-merged in water for 8 Hrs minimum.

• Joints in case of tensile members must be prohibited as far as practicable.

• Roof should be casted at a stretch without leaving any joints. If required, joint should be placed over the support point and joint must be sloped at 45 Degree.

QUALITY CONTROL• Sand: Hard, Strong, durable, clean particles free from silt and clay.• Moorum: Good quality granular moorum from approved quarry

satisfied with the P.I. value.• Water: Normal portable water shall be used.• Metal/Chips: Hard, Black, Granite, free from skin and flaky

materials.• Cement: Ordinary Portland cement (IS:269)/Portland slag cement

(IS:455) should be used.• Steel: SAIL steel must be used.• Water-Cement ration shall be maintained at 0.4 to 0.5 to achieve

the desired strength of the concrete.• Proper compaction should be done to avoid honeycomb.• Proper curing should be ensured from the 2nd day up to 28 days.

MEASUREMENT• Metallic/Steel Grip tap shall be used for

measurement.• In MGNREGA works, the measurement should

taken in every 7 days.• In earthwork, pit measurement should be made

initially but before final bill, the quantity paid must be matched with the quantity calculated by final level section.

• In case of Road works, measurement in a particular interval (15 Mtr/30 Mtr) should be taken.

• In case of building works, detail measurement of each item should be taken.

PREPARATION OF BILLS• Abstract of Bill shall be prepared from Quantity arrived from

measurement.• The labour and material component shall be calculated

separately.• Labour component should be reflected in the Muster Roll.• Unique numbered Muster Roll duly authenticated by

competent authority shall be used and must be maintained on daily basis.

• The Vigilance and Monitoring committee members should certify the authenticity of muster roll.

• Authenticated vouchers having TIN number should be obtained against the materials.

• Royalty, Cess, VAT should be calculated properly and deducted from the Bill.

COMPLETION OF PROJECT• Before payment of the final Bill, the final photograph shall

be taken and kept in case record.• After payment of the final Bill, Completion certificate shall

be furnished mentioning the completion date and number.

• The completed projects shall be entered in the Asset

Register.Team Members:1. Sri P.K.Kodamsingh,. AE, Nuagan, Nayagarh

2. Sri P.Ch.Sahu, AE, Paralakhemundi

3. Sri Ramesh Ch. Sethi, AE, Khaira

4. Sri Alok Mishra, Estimator, DRDA, Anugul

5. Sri P.K.Das, Estimator, DRDA, Khordha

6. Sri Pabitra Ku. Sahu, JE, Nabarangpur

7. Sri Babu Mallick, JE, Koraput

THANK Q………