Data Rates-Canal Works Part 1

8/13/2019 Data Rates-Canal Works Part 1

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CANAL AND ALLIED WORKS

FOR THE YEAR : 2010-11

CONTENTS PAGES

REFERENCE DATA 3 -- 5

NOTES ON BASIC RATES 6 -- 6

DATA FOR SCHEDULE OF RATES 7 -- 168

DATA FOR ENABLING WORKS 169--172

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WATER RESOURCES DEPARTMENT

zgn wAz jjnzFINILISED BY SCHEDULE OF RATES COMMITTEE

SCHEDULE OF R TESC N L ND LLIED WORKS

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FOR THE YEAR: 2010-11

COST OF MATERIALS :1 Air hose 25 mm dia per Rm Rs: 150.00

2 Air hose 50 mm dia per Rm Rs: 197.00

3 Asphalt 80 / 100 and 85 / 25 Gr per kg Rs: 30.00

4 Binding wire per kg Rs: 50.00

5 Cement per kg Rs: 4.00

6 Coarse aggregate 10-4.75 mm per cum ( at quarry ) Rs: 669.00

7 Coarse aggregate 20-10 mm per cum ( at quarry ) Rs: 520.00

8 Coarse aggregate 40-20 mm per cum ( at quarry ) Rs: 381.00

9 Curing Compound per ltr Rs: 95.00

10 D - cord per Rm Rs: 8.00

11 Detonating fuse coil per Rm Rs: 8.00

14 Detonator delay type per No. Rs: 18.00

15 Detonator electric per No. Rs: 10.00

16 Detonator ordinary per No. Rs: 5.5017 Diesel oil per ltr Rs: 40.00

18 Empty cement bags per No. Rs: 1.50

19 Explosive ANFO high strength booster per kg Rs: 50.00

20 Explosive ANFO per kg Rs: 32.00

21 Explosive small dia.( Kelvex-220 ) per kg Rs: 45.00

22 Extension rod with coupling sleeve per Rm Rs: 3300.00

23 Filter fabric 200 gsm per sqm Rs: 150.00

24 Filter fabric 250 gsm per sqm Rs: 180.00

25 Fine aggregate / Sand per cum ( Un-screened at quarry ) Rs: 154.00

26 Fine aggregate per cum ( Screened at quarry ) Rs: 199.00

27 G I pipe 50 mm dia A class per Rm Rs: 200.00

28 Jack hammer Drill rod 1.5 m length per No. Rs: 3400.00

29 LDPE sheet 500 micron thick per sqm Rs: 80.0030 LDPE sheet 750 micron thick per sqm Rs: 125.00

31 LDPE sheet 1000 micron thick per sqm Rs: 150.00

32 Murum per cum ( at quarry ) Rs: 60.00

33 Paving Cylinder per Each Rs: 21940.00

34 PVC sealing strip per Rm Rs: 32.00

35 Reinforcement steel per kg Rs: 36.20

36 Rough stone 200 x 200 x 750 mm per No. ( at quarry ) Rs: 13.00

37 Shahabad stone slab per sqm Rs: 180.00

38 Shutter oil per ltr Rs: 25.00

39 Size stone 150 - 200 mm height per No. ( at quarry ) Rs: 5.00



42 Stone chips per cum ( at dump yard ) Rs: 160.00

43 Stone chips per cum ( at quarry ) Rs: 240.0044 Structural steel angle / beam / channel / bar per kg Rs: 37.95

45 Structural steel plate / flat per kg Rs: 40.00

45 Super Plasticiser per ltr Rs: 75.00

47 Tarfelt jointer filler board 12 mm thick per sqm Rs: 325.00

48 Tarfelt jointer filler board 20 mm thick per sqm Rs: 528.00

CANAL AND ALLIED WORKS - REFERENCE DATA

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49 T.C Cross bit 100 mm dia per No. Rs: 9615.00

50 Through stone 200 x 200 x 300 mm per No. ( at quarry ) Rs: 9.00

51 Through stones 250 x 250 x 450 mm per No. ( at quarry ) Rs: 13.00

52 Turfing sods per sqm Rs: 15.00

53 Un-coursed rubble stones per cum ( at dump yard ) Rs: 135.00

54 Un-coursed rubble stones per cum ( at quarry ) Rs: 200.00

55 Wire mesh 50 x 50 mm 20 guage per sqm Rs: 150.00

LEAD CHARGES FOR 1 km REHANDLING LEAD: Unloading

1 Earth/ Sand Rs: 35.10 41.30 8.50

2 Stone/ Coarse aggregates Rs: 48.70 48.80 24.40

3 Cement Rs: 37.90 45.60 45.60

4 Reinforcement steel Rs: 37.90 45.60 45.60

ROYALTY CHARGES: Per tonne

1 Earth / Soil / Murum Rs: 10.00

2 Stone / Coarse aggregate Rs: 30.00

3 Fine aggregate / Sand Rs: 30.00

HIRE CHARGES OF MACHINERY : Crew charge

1 Air compressor 8.5 cmm ( diesel ) / hour Rs: 202.00 619.00 72.10

2 Angle dozer 90 hp per hour Rs: 1154.00 423.00 77.50

3 Batching plant 15 cum / hr rated capacity Rs: 303.00 226.00 108.20

4 Concrete hand mixer 45 / 30 ltr per hour Rs: 10.00 3.00 ---

5 Concrete mixer 300 / 200 ( diesel ) / hour Rs: 42.00 55.00 75.10

6 Concrete mixer 600 / 400 ( diesel ) / hour Rs: 84.00 110.00 75.10

7 Diesel generating set 30 KVA per hour Rs: 60.00 440.00 45.10

8 Diesel generating set 50 KVA per hour Rs: 94.00 660.00 45.10

9 Diesel road roller per hour Rs: 228.00 495.00 72.00

10 Jack hammer per hour Rs: 14.00 5.00 111.90

11 Mechanical concrete paver per hour Rs: 282.00 17.00 144.30

12 Needle Vibrator 40 mm ( petrol ) per hour Rs: 8.00 15.00 53.30

13 Pump 5 hp ( diesel ) per hour Rs: 7.00 55.00 35.80

14 Shovel 0.85 cum per hour Rs: 1199.00 605.00 77.50

15 Shovel 0.50 cum per hour Rs: 725.00 330.00 77.50

16 Tipper 5 cum per hour Rs: 271.00 208.00 56.70

17 Transit mixer 2 cum per hour Rs: 628.00 605.00 90.80

18 Vibratory pad foot roller per hour Rs: 1130.00 715.00 90.60

19 Waggon drill per hour Rs: 216.00 9.00 89.50

20 Water tanker per hour Rs: 268.00 208.00 56.70

WAGES OF WORKERS Per day

1 Bar bender Rs: 159.00

2 Blaster ( Licensed ) Rs: 147.00

3 Carpentor Class II Rs: 148.50

4 Cartman with double bullock cart Rs: 178.505 Crowbarman Rs: 141.50

6 Electrician Rs: 143.00

7 Helper blasting Rs: 141.50

8 Maistry Rs: 141.50

Fuel charge

1 km lead Loading

Hire charge

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9 Mason Class I Rs: 159.00

10 Mason Class II Rs: 148.50

11 Mazdoor heavy Rs: 132.00

12 Mazdoor light Rs: 130.50

13 Mechanic / Fitter / Welder Rs: 157.50

14 Pipe fitter Rs: 152.50

15 Rollerman with bullock roller Rs: 178.50

16 Stone breaker Rs: 146.00

17 Stone chiseller Cl- I Rs: 148.50

18 Stone chiseller Cl- II Rs: 146.00

OTHER DATA :

1 Contractor's Overheads on Materials / Machinery / Labour % 5.00

2 Contractor's Profit on Materials / Fuel & Energy charges / Labour % 10.00

3 Cost of Other enabling works ( as per Annexure-1 at the end ) % 1.20

4 Hidden cost on Labour % 15.00

5 Rate of interest per annum % 11.00

6 Small Tools & Plant on Materials / Machinery / Labour % 1.00

7 Structural steel fabrication per kg Rs: 10.008 Sundries ( lumpsum rate for unquantified inputs ) Rs: 30.00

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FOR THE YEAR : 2010-11

1. All notes under ' General Notes on Schedule of Rates ' and Notes on Lead, Lift, Loading and

un-loading Charges are applicable to Canal and Allied Works also to the extent they are

relevant.

2. Unless otherwise specified the basic rates are inclusive of all lifts.

3. For earth / rockfill embankment works 1 km initial lead is considered in the basic rates. As no

storing / stacking and re-handling of materials is involved for these works lead charges for

additional lead shall be worked out for total lead including initial lead of 1 km and then the

cost of first km lead shall be deducted. No loading and un-loading charges shall be added as

the additional lead does not involve re-handling of materials.

Example :

Total lead for soil from approved borrow area : 2 km

Initial lead included in the basic rate in the SR : 1 kmAdditional lead charges : Lead charges for 2 km Rs: 43.10

Less Lead charges for 1 km Rs: -35.10

Additional lead charges Rs: 8.00

No loading and un-loading charges shall be added.

4. Cement content specified for cement concrete works in the item description is based on

theoritical design mix computations and is exclusive of wastage and requirement for any

incidentals. The actual cement content may vary based on trial mix studies. A suitable clause

shall be included in the tender for regulating payment for any upward or downward variation in

cement content.

5. A weightage of 25 percentshall be allowed over the finished item rates of concrete for canal

lining works by paver and manual methods ( items: 29.a to 36 ) wherever the works are to becarried out during the canal closure period ( 3 to 4 months ) only.

6. The quantities of materials including wastage, requirements for incidentals etc., for working

out additional lead charges shall be as per the statement of requirement of materials under

this section.

NOTES ON SCHEDULE OF RATES


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SECTION: CANAL AND ALLIED WORKS. YEAR : 2010-11 ITEM No: 1

ITEM: Excavation in all kinds of soilincluding boulders upto 0.6 m diameter ( 0.113 cum)for canal,

seating of embankment, filter drains/ catch water drains etc., including dressing bed and sides

to required level and profile, cost of all materials, machinery, labour, placing the excavated soil

neatly in dump area or for the formation of service road / embankment as directed etc.,

complete with initial lead upto 1 km and all lifts.

DATA:Capacity of shovel bucket : 0.85 cum

Capacity of shovel bucket under heaped condition : 1.00 cum

Capacity of tipper : 5.00 cum

Lead for disposal of excavated soil : Upto 1 km

Speed for loaded tipper under canal excavation condition : 15 km / hr

Speed for empty tipper under canal excavation condition : 15 km / hr

Turning and unloading time : 2.00 min

Shovel digging and loading cycle per bucket : 20 sec

1. Quantity of excavation :

In-situ quantity / bucket for 20 % bulkage on unloading ( 1 /1.20 ) : 0.83 cum

In-situ quantity per load for 20 % bulkage of soil ( 5 /1.2 ) : 4.16 cum

Number of buckets per load ( 4.16 / 0.83 ) say : 5 buckets

Corrected Quantity of in-situ soil per load ( 5 x 0.83 ) say : 4.16 cum

Ideal cycle time for loading 5 buckets ( 5 x 20 / 60 ) : 1.67 min

The ideal cycle time for shovel requires spotting of a tipper within 1.67 minutes near the shovel.

However, in practice for canal excavation the space available may not permit positioning of the

tippers on either side of the shovel. Generally, one tipper has to move after loading to position

the next tipper for loading. Assuming one cycle time extra the corrected cycle time for the

shovel will be : ( 6 x 20 / 60 ) : 2.00 min

Round trip cycle time for tipper:

Corrected cycle time of shovel for digging & loading : 2.00 min

Time for ( av ) 0.75 km haulage under load ( 0.75 x 60 / 15 ) : 3.00 min

Time for turning and un-loading : 2.00 min

Time for ( av ) 0.75 km return trip ( 0.75 x 60 / 15 ) : 3.00 min

Time for turning and spotting : 0.50 min

Total : 10.50 min

No.of tippers to match corrected cycle time of shovel ( 10.50/ 2.00 ) : 5.25 Nos

Output of tipper / hr with 50 min working / hr ( 50 x 4.16 / 10.50 ) : 19.80 cum

Output for 5 tippers per day ( 5 x 19.80 x 8 ) : 792 cum

Further, assuming about 90 percent of excavation by deploying shovel and about 10 percent

excavation mainly for trimming the canal to final profile by manual labour the daily progress of

excavation will be : ( 792 / 0.9 ) say : 880 cum

Consider 880 cum for rate analysis.

2. Requirement of materials:No materials involved in the work.

3. Requirement of machinery :

Deploy 0.85 cum capacity shovel for 8 hours for digging and loading 792 cum insitu soil.

Deploy 5 tippers of 5 cum capacity for 8 hours for disposal of 792 cum insitu soil.

CANAL AND ALLIED WORKS - DATA RATES

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4. Requirement of workforce ( other than machinery crew ) :

Average output of 1 heavy & 1 light mazdoor assumed at 5 cum / day for trimming and disposal.

Deploy 18 heavy and 18 light mazdoors for trimming and disposal of 88 cum soil.

Deploy 1 maistry.

RATE ANALYSIS UNIT : 880.00 cum

A. MATERIALS:

Sl No Unit Amount

in Rs.

1 NIL 0.00 0.00 0.00

0.00 0.00 0.00

Total Rs: 0.00

Add for small Tools and Plants @ 1% Rs: 0.00

Add for Contractor's Profit @ 10% Rs: 0.00

Add for Contractor's Overheads @ 5% Rs: 0.00

Total cost of Materials : Rs: 0.00

B. MACHINERY:

Sl No Unit Amountin Rs.

1 Shovel 0.85 cum capacity Hour 8.00 1199.00 9592.00

Fuel / Energy charges Hour 8.00 605.00 4840.00

2 Tippers 5 cum capacity ( 5 ) Nos Hour 40.00 271.00 10840.00


Total Rs: 33592.00


Add for Contractor's Profit on DPOL / Energy @ 10% Rs: 1316.00


Total hire charges of Machinery : Rs: 36923.52

C. LABOUR:

Sl No Unit Amount

in Rs.

1 Crew for Shovel Hour 8.00 77.50 620.00

2 Crew for Tipper Hour 40.00 56.70 2268.00

3 Maistry Day 1.00 141.50 141.50

4 Heavy mazdoor Day 18.00 132.00 2376.00

5 Light mazdoor Day 18.00 130.50 2349.00

Total Rs: 7754.50



Add for hidden cost on Labour @ 15% Rs: 1163.18


Total cost of Labour : Rs: 10158.40

ABSTRACT:A. Cost of Materials Rs: 0.00

B. Hire charges of Machinery Rs: 36923.52

C. Cost of Labour Rs: 10158.40

TOTAL Rs: 47081.92

Quantity

Quantity

Quantityin Rs.

Rate

in Rs.

Rate

in Rs.

Rate

Perticulars

Description

Description

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Add for other enabling works @ 1.20% Rs: 564.98

Total cost for 880.00 cum Rs: 47646.90

Rate per cum Rs: 54.00

Rate approved per cum Rs: 54.00


ITEM: Excavation in all kinds of soilincluding boulders upto 0.60 m diameter ( 0.113 cum ) for field

channels, seating of embankment for field channels etc., including dressing of bed and sides

to required profile, cost of all materials, machinery, labour, placing the excavated stuff for

formation of service road / embankment as directed etc., complete with lead upto 10 m and

lift upto 2 m.



Lead for disposal of excavated soil : Upto 10 m

In view of shallow depth of digging for field channels the cycle time for digging and disposal by

shovel is assumed at 1.5 times the cycle time considered for canal.

Shovel digging and loading cycle per bucket ( 1.5 x 20 ) : 30 sec


In-situ qty / bucket for 15 % bulkage of soil ( 0.57 / 1.15 ) : 0.50 cum

Output of shovel with 50 min./ hr working ( 50 x 60 x 0.5 / 30 ) : 50 cum / hr

Daily output of excavation ( 8 x 50 ) : 400 cum

As the excavated soil is dumped by the side of field channel within the reach of shovel boom

no tippers are considered in the rate analysis for disposal of excavated soil.


excavation mainly for trimming bed and sides of channels / trenches to final profile by manual

labour, the daily output will be : ( 400 / 0.90 ) say : 445 cum


2. Requirement of materials:

No materials involved in the work.


Deploy 0.5 cum capacity shovel for 8 hours for digging and loading 400 cum.


Average output of 1 heavy & 1 light mazdoor assumed at 5 cum / day for trimming and disposal.

Deploy 9 heavy and 9 light mazdoors for trimming and disposing 45 cum soil.

Deploy 1 maistry.


A. MATERIALS:

Sl No Unit Amount

in Rs.

1 NIL 0.00 0.00 0.00

0.00 0.00 0.00

Total Rs: 0.00

Add for small Tools and Plants @ 1% Rs: 0.00Add for Contractor's Profit @ 10% Rs: 0.00



Quantity Rate

in Rs.

Perticulars

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B. MACHINERY:

Sl No Unit Amount

in Rs.



Total Rs: 8440.00





C. LABOUR:

Sl No Unit Amount

in Rs.


2 Maistry Day 1.00 141.50 141.50



Total Rs: 3124.00


Add for Contractor's Profit @ 10% Rs: 312.40Add for hidden cost on Labour @ 15% Rs: 468.60



ABSTRACT:

A. Cost of Materials Rs: 0.00



TOTAL Rs: 13302.84






ITEM: Excavation in soft rockwithout blastingincluding boulders upto 0.6 m diameter ( 0.113 cum )

for canals, seating of embankment, filter drain / catch water drains etc., including dressing of

bed and sides to required level and profile, cost of all materials, machinery, labour, placing the

excavated soft rock neatly in dump area or for formation of service road as directed etc.,

complete with lead upto 1 km and all lifts.




Lead for disposal of excavated soft rock : Upto 1 km

Speed for loaded tipper under canal excavation condition : 15 km / hr Speed for empty tipper under canal excavation condition : 15 km / hr


Quantity

Quantity

Rate

in Rs.

Rate

in Rs.

Description

Description

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In-situ qty / bucket for 30 % bulkage on unloading : 0.77 cum

In-situ quantity / load for 5 cum of soft rock ( 5 / 1.30 ) : 3.85 cum




However, in practice for dam or canal excavation the space available may not permit positioning

of tippers on either side of the shovel. Generally one tipper has to move after loading to position

the next tipper for loading. Assuming one cycle time extra the corrected cycle time for digging

and loading one tipper by shovel will be : ( 6 x 30 / 60 ) 3.00 min



Time for ( av ) 0.75km haulage under load ( 0.75 x 60 / 15 ) : 3.00 min


Time for average 0.75 km return trip ( 0.75 x 60 / 15 ) : 3.00 min


Total : 11.50 min

No.of tippers to match corrected cycle time of shovel ( 11.50/ 3.00 ) say : 3.83 Nos

Output of tipper / hr with 50 min working / hr ( 50 x 3.85 / 11.50 ) : 16.74 cumOutput for 4 tippers per day ( 3.83 x 16.74 x 8 ) say : 513 cum


excavation mainly for trimming of bed / sides to final profile by manual labour the daily output

will be : ( 513 / 0.9 ) say : 570 cum






Deploy 4 tippers of 5 cum capacity for disposal of 513 cum.


Output of 1crowbarman, 1 heavy and 1 light mazdoor assumed at 5 cum per day for trimming.

Deploy 11 heavy and 11 light mazdoors for trimming and disposal of 57 cum soft rock.

Deploy 11 crowbarman for trimming.

Deploy 1 maistry.


A. MATERIALS:

Sl No Unit Amount

in Rs.

1 NIL 0.00 0.00 0.00

0.00 0.00 0.00

Total Rs: 0.00





B. MACHINERY:

Sl No Unit Amount

Quantity

Quantity Rate

Rate

in Rs.

Perticulars

Description

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in Rs.



2 Tippers 5 cum capacity ( 4 ) Nos Hour 32.00 271.00 8672.00


Total Rs: 29760.00





C. LABOUR:

Sl No Unit Amount

in Rs.


2 Crew for Tipper Hour 32.00 56.70 1814.40

3 Maistry Day 1.00 141.50 141.50

4 Crowbarman Day 11.00 141.50 1556.50



Total Rs: 7019.90Add for small Tools and Plants @ 1% Rs: 70.20





ABSTRACT:




TOTAL Rs: 41891.27






ITEM: Excavation in soft rock without blastingincluding boulders upto 0.60 m diameter (0.113 cum)

for field channels, seating of embankment for field channels etc., including dressing of bed

and sides to required profile, cost of all materials, machinery, labour, placing excavated stuff

for formation of service road as directed etc.,complete with lead upto 10 m and lift upto 2 m.



Lead for disposal of excavated soil : Upto 10 m

In view of shallow depth of digging for field channels the cycle time for digging and disposal by

shovel is assumed at 1.5 times the cycle time considered for canal.

Shovel digging and loading cycle per bucket ( 1.5 x 30 ) : 45 sec

Quantity

in Rs.

Rate

in Rs.

Description

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In-situ qty per bucket for 25 % bulkage of soil ( 0.57 / 1.25 ) : 0.45 cum

Output of shovel with 50 min./ hr working ( 50 x 60 x 0.45 / 45 ) : 30 cum / hr

Daily output of excavation ( 8 x 30 ) say : 240 cum


excavation mainly for trimming the canal to final profile by manual labour, the daily progress of

excavation in soft rock will be : ( 240 / 0.9 ) say : 265 cum







Output of 1 crowbarman, 1 heavy & 1 light mazdoor assumed at 5 cum per day.

Deploy 5 crowbarman, 5 heavy and 5 light mazdoors for trimming and disposal of 25 cum.


A. MATERIALS:

Sl No Unit Amount

in Rs.1 NIL 0.00 0.00 0.00

0.00 0.00 0.00

Total Rs: 0.00





B. MACHINERY:

Sl No Unit Amount

in Rs.



Total Rs: 8440.00





C. LABOUR:

Sl No Unit Amount

in Rs.


2 Maistry Day 1.00 141.50 141.50

3 Crowbarman Day 5.00 141.50 707.50

Contd

C. LABOUR ( Contd ) :

Sl No Unit Amount

in Rs.

Contd

Quantity

Quantity

Quantity

Quantity

in Rs.

Rate

in Rs.

Rate

in Rs.

Rate

Rate

in Rs.

Perticulars

Description

Description

Description

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Total Rs: 2781.50






ABSTRACT:




TOTAL Rs: 12854.17






ITEM: Excavation in soft rock requiring blasting including boulders upto 0.6 m diameter( 0.113 cum)

for canals, seating of embankment, filter drain / catch water drains etc., including dressing bed

and sides to required level and profile, cost of all materials, machinery, labour, placing the

excavated rock in dump area or for formation of service road as directed etc., complete with

lead upto 1 km and depth of cut upto 18 m below ground level.

Note: For depth of cut more than 18 m below ground level increase the basic rate by 5 %.




Lead for disposal of excavated soft rock : Upto 1 km






In-situ qty / bucket for 35 % bulkage on unloading ( 1 / 1.35 ) : 0.74 cum

In-situ quantity / load for 5 cum of soft rock ( 5 / 1.35 ) : 3.70 cum






the next tipper for loading. Assuming one cycle time extra the corrected cycle time for digging

and loading one tipper by shovel will be : ( 6 x 40 / 60 ) : 4.00 min



Time for ( av ) 0.75 km haulage under load ( 0.75 x 60 / 15 ) : 3.00 min


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Total : 12.50 min

No.of tippers to match corrected cycle time of shovel ( 12.50 / 4.00 ) : 3.12 Nos


Output for 3 tippers per day ( 3 x 14.80 x 8 ) say : 355 cum


excavation mainly for trimming of bed and sides to final profile by manual the daily output

will be : ( 355 / 0.9 ) say : 395 cum

Consider 395 cum excavation in soft rock requiring blasting for rate analysis.

2. Drilling and Blasting :

Depth of drilling per hole : 1.40 m

Effective depth of pull : 1.25 m

Grid spacing of holes for soft rock requiring blasting depends on the nature of soft rock at any

perticular location. For the purpose of rate analysis holes at average spacing of 1.5 times the

spacing considered for hard rock is assumed.

Grid spacing of holes : 1.50 x 2.00 m

Area of excavation for 395 cum ( 395 / 1.25 ) : 316 sqm

Nos. of holes for 316 sqm area 316 / ( 1.5 x 2.0 ) : 105 Nos.

Depth of drilling for 105 holes ( 105 x 1.4 ) say : 147.00 m

Add for secondary blasting LS : 3.00 mTotal depth of drilling : 150 m

Rate of drilling in soft rock per hour : 12 m

With 50 min / hour working rate of drilling ( 12 x 50 / 60 ) : 10 m

Time required for drilling with 2 jack hammers ( 150 / 2 / 10 ) : 7.50 hours

3. Requirement of materials :

Jack hammer drill rod : 150 m drilling

Quantity of Explosive ( Kelvex-220 ) at 0.2 kg / cum ( 395 x 0.2 ) : 79 kg

Explosive for secondary blasting LS : 1 kg

Ordinary detonators for secondary blasting 5 holes : 5 Nos.

Electric detonators at 1 per hole for main blast : 105 Nos.

Fuse coil : 175 Rm



Deploy 3 tippers 5 cum capacity for 8 hours for disposal of 240 cum.

Deploy 1 air compressor 8.5 cmm capacity for 7.5 hours.

Deploy 2 jack hammers for 7.5 hours for drilling.


Output of 1 heavy & 1 light mazdoor assumed at 5 cum per day for trimming and disposal.

Deploy 2 crowbarman, 2 stone breaker, 8 heavy and 8 light mazdoors for 40 cum.

Deploy 1 blaster and 1 blasting helper for loading and blasting.

Deploy 1 maistry.

6. Use rate of materials :

Cost of drill rod 1.5 m long @ Rs: 3400.00 / Each Rs: 3400.00

Life of drill rod for drilling in soft rock with reconditioning : 200 m

Use rate of drill rod per Rm drilling ( cost / life ) Rs: 17.00

Length of air hose for drilling for each jack hammer : 50 m

Cost of 25 mm dia air hose 50 m @ Rs: 150.00 / Rm Rs: 7500.00

Life of air hose : 800 hours

Use rate of 25 mm dia air hose per hr ( cost / life ) Rs: 9.38

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9 Stone breaker Day 2.00 146.00 292.00



Total Rs: 7305.05






ABSTRACT:




TOTAL Rs: 55908.52





SECTION: CANAL AND ALLIED WORKS. YEAR : 2010-11 ITEM No: 6.a

ITEM: Excavation in hard rock of all toughness including boulders above 0.6 m diameter (0.113 cum)

by blastingfor canals, cut-off trench of embankment, filter / catch water drains etc., adopting a

combination of wagon drill holes of not more than 100 mm dia. and jack hammer holes including

levelling the bed and minimising damage to side slopes in water prism by adopting any one or a

combination of line drilling /pre-splitting /smooth blasting techniques and stacking the excavated

rock neatly in approved dump area as directed etc., with initial lead upto 1 km and depth of

cuts upto 18 m below ground level.

Note: For depth of cut more than 18 m below ground level increase the basic rate by 5 %.

DATA:Excavation for canal in hard rock can be by using jack hammers or by using waggon drills or

by combination of both depending on the depth of cut, width of canal and side slope. In case of

waggon drill the rate of drilling will be faster and yeild per hole will be more due to wider spacing

of holes. For jack hammer drill the yeild per hole will be less due to closer spacing of holes.

As both the systems have advantages as well as disadvantages it is proposed to work out rates

using both the systems and include average rate in the Schedule of Rates.

I. By using Jack hammers for drilling :

Assume 10.80 m width of canal at the bench level and 1.25 m average depth of cutting.

Assume side slopes of 0.25 horizontal to 1 vertical.

Generally, the length of canal bench to be excavated per blast shall not be more than 7 m to

avoid tight muck pile requiring higher digging time for shovel.

Sectional area of excavation 10.80 + 10.175 ) x 0.5 x 1.25 : 13.11 sqm

Consider 7 burden distance for excavation per blast.

Number of rows considered : 7 No.

Length of canal for 7 rows ( 7 x 1.00 ) : 7.00 m

Quantity of excavation for 7 m length ( 13.11 x 7.00 ) say : 92.00 cum

10.80 m

8.4 m

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1 1.25 m

0.25

10.175 m

--

1.0 m

1.2 m

7.00 m

Free face

SKETCH SHOWING DRILLING & BLASTING PATTERN

1. Drilling and Blasting:

Consider drilling by Jack hammers and mucking by combination of Shovel and Tippers.

The burden ( distance of hole from free face of excavation ) is considered at 25 to 30 times dia

of hole and spacing of holes is considered at 1.20 to 1.25 times burden.

Burden distance for 32 mm dia jack hammer holes ( 0.032 x 30 ) say : 1.00 m

Spacing of holes ( 0.032 x 30 x 1.25 ) : 1.20 m

Grid spacing of holes for 32 mm dia jack hammer holes : 1.00 x 1.20 m

Depth of drilling per hole : 1.40 m

Effective depth of pull considering 10 % sub-drilling : 1.25 m

Rate of drilling by jack hammer in hard rock per hour : 8.00 m

Rate of drilling per hour with 50 min / hour working ( 8 x 50 / 60 ) say : 6.5 m

No.of holes in 7 rows @1.2 m interval staggered ( 4x8 + 3x9 + 16 ) : 75 Nos

Length of drilling for 75 holes @ 1.4 m per hole ( 75 x 1.4 ) : 105 m

Add drilling for secondary blasting for 5% quantity @ 0.6 m / cum say : 3 m

Total : 108.00 m

Time for drilling 108 m for 2 jack hammers ( 108 / 2 / 6.5 ) : 8.30 hours

Drilling and Blasting pattern :

Pattern of holes : Staggered

Hole initiation : Bottom

Initiation system : Ele detonators

Initiation pattern : All rows

2. Disposal of excavated rock :Quantity of excavation ( in-situ ) : 92.00 cum

Capacity of shovel bucket : 0.85 cum



Lead for disposal of excavated rock : Upto 1 km




18


19/20



In-situ qty / bucket for 40 % bulkage of hard rock ( 1 /1.40 ) : 0.71 cum

In-situ qty per load for 40 % bulkage of hard rock ( 5 /1.40 ) : 3.57 cum






next tipper for loading. Assuming one loading cycle extra, the corrected cycle time for shavel

will be ( 6 x 45 / 60 ) 4.50 min


Cycle time of shovel for digging & loading : 4.50 min

Time for (av ) 0.75 km haulage under load ( 0.75 x 60 / 15 ) : 3.00 min




Total : 13.00 min

No.of tippers to match corrected cycle time of shovel ( 13.00 / 4.50) : 2.9 Nos


Deploy 0.9 cum shovel and 3 tippers for disposal of excavated rock.

Output of 1 shovel & 3 tippers per hour ( in-situ qty ) ( 13.73 x 2.9 ) : 39.80 cumOut of the total blasted rock some residual muck at the bed needs to be removed by deploying

manual labour. Assume residual muck at bed at 0.10 cum / sqm of bed area.

Quantity of muck to be disposed by shovel ( 92 - 0.1 x 70 ) 85 cum

Time for disposal of 85 cum by shovel ( 85 / 39.80 ) : 2.2 hours

For levelling 85 cum muck in dump yard deploy 1 dozer for : 0.25 hour

Quantity of muck to be disposed by manual labour ( 92 - 85 ) 7 cum

3. Requirement of materials :

Jack hammer drill rod : 108 m drilling

Quantity of Explosive ( Kelvex-220 ) at 0.3 kg / cum ( 92 x 0.3 ) : 27.60 kg

Add for secondary blasting @ 0.2 kg / cum ( 92 x 0.05 x 0.2 ) : 0.90 kg

Total : 28.50 kg

Ordinary detonators for secondary blasting 8 holes of 0.6 m each : 8 Nos.

Electric detonators @ 1 per hole for main blast : 75 Nos

Detonating fuse coil : 120 Rm


Deploy 0.85 cum capacity shovel for 2.2 hours for digging and loading 85 cum.

Deploy 3 tippers 5 cum capacity for 2.2 hours for disposal of 85 cum.

Deploy 1 air compressor 8.5 cmm capacity for 8.5 hours.

Deploy 2 jack hammers for 8.5 hours for drilling.

Deploy 1 angle dozer for 0.25 hour for levelling muck in dump area.


Deploy 1 Crowbarman, 1 Stone breaker for 1 day for levelling bed.Deploy 2 heavy and 2 light mazdoors for disposal of 9 cum residual muck at bed level and for

other miscellaneous works.

Deploy 1 blaster and 1 blasting helper for loading and blasting.

Deploy 1 maistry.

6. Use rate of materials :

Cost of drill rod 1.5 m long @ Rs: 3400.00 / Each Rs: 3400.00

Life of drill rod for drilling in hard rock with reconditioning : 150 m

Use rate of drill rod per Rm drilling ( cost / life ) Rs: 22.67

19


20/20


Length of air hose for drilling for each jack hammer : 50 m

Cost of 25 mm dia 50 m air hose @ Rs: 150.00 / Rm Rs: 7500.00

Life of air hose : 800 hours

Use rate of 25 mm dia air hose per hour ( cost / life ) Rs: 9.38


A. MATERIALS:

Sl No Unit Amount

in Rs.

1 Use rate of Jack hammer drill rod 1.5 m Rm 108.00 22.67 2448.00

Reconditioning charges @ 10 % 244.80

2 Use rate of 50 m air hose 2 Nos. Hour 17.00 9.38 159.38

3 Explosive small dia. (Kelvex-220 ) kg 28.50 45.00 1282.50

4 Ordinary detonators Nos 8.00 5.50 44.00

5 Electric detonators Nos 75.00 10.00 750.00

6 Fuse coil Rm 120.00 8.00 960.00

7 Sundries LS 2.00 30.00 60.00

Total Rs: 5948.68



Add for Contractor's Overheads @ 5% Rs: 297.43Total cost of Materials : Rs: 6900.46

B. MACHINERY:

Sl No Unit Amount

in Rs.


Fuel / energy charges Hour 2.20 605.00 1331.00

2 Angle dozer 90 hp Hour 0.25 1154.00 288.50


3 Tippers 5 cum capacity 3 Nos. Hour 6.60 271.00 1788.60


4 Air compressor 8.5 cmm ( diesel ) 1 Nos Hour 8.50 202.00 1717.00


5 Jack hammers 2 Nos. Hour 17.00 14.00 238.00


Total Rs: 14825.95


Contd

B. MACHINERY ( Contd ) :

Sl No Unit Amount

in Rs.Contd




C. LABOUR:

Sl No Unit Amount

in Rs.

Quantity

Quantity Rate

in Rs.

Rate

in Rs.

Quantity Rate

in Rs.

Description

Description

Description

Perticulars

Quantity Rate

in Rs.

Documents

Data Rates-Canal Works Part 1