data rates-tunnel works 1

8/13/2019 Data Rates-Tunnel Works 1

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TUNNEL AND ALLIED WORKS

FOR THE YEAR : 2010-11

CONTENTS PAGES

REFERENCE DATA 3 -- 5

NOTES ON BASIC RATES 6 -- 6

DATA RATES 7 -- 111

ANNEXURES 67--82

REVISED BY SCHEDULE OF RATES COMMITTEE

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WATER RESOURCES DEPARTMENT

SCHEDULE OF RATES


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COST OF MATERIALS:1 Acetylene gas per cum Rs: 258.00

2 Air hose 25 mm dia per Rm Rs: 150.00

3 Binding wire per kg Rs: 50.00

4 Cement 43 Gr per kg Rs: 4.00

5 Coarse aggregate 10-4.75 mm / cum Rs: 669.00

6 Coarse aggregate 20-10 mm / cum Rs: 520.00

7 Coarse aggregate40-20 mm / cum Rs: 381.00

8 Concrete admixture( Super plasticiser ) per ltr Rs: 75.00

9 Cross bit ( TC ) 75 mm dia per No. Rs: 7690.00

10 Detonating fuse coil per Rm Rs: 8.00

11 Detonator delay type per No. Rs: 18.00

12 Detonator electric per No. Rs: 10.00

13 Detonator ordinary per No. Rs: 5.50

14 Explosive ( small dia ) per kg Rs: 45.0015 Extension rod with coupling sleeve per Rm Rs: 3300.00

16 Fine aggregate/ sand ( screened ) per cum Rs: 199.00

17 G I Pipe 80 mm dia per Rm Rs: 230.00

18 G I Pipe100 mm dia per Rm Rs: 250.00

19 G.I. Bolts and Nuts per kg Rs: 80.00

20 Guniting nozzle per No. Rs: 312.00

21 Jungle wood planks per cum Rs: 19000.00

22 Jack hammer drill rod 1.5 m per No. Rs: 3400.00

23 Jack hammer drill rod 2.5 m per No. Rs: 5660.00

24 M S Bolts & Nuts per kg Rs: 55.00

25 Oxygen gas per cum Rs: 48.00

26 Plain G.I. Sheet per tonne Rs: 49800.00

27 Rails 30 kg / m per tonne Rs: 42000.0028 Reinforcement steel per kg Rs: 36.20

29 Resin bond cement grout capsule per No. Rs: 50.00

30 Rivets per kg Rs: 50.00

31 Shalimastic sealing compound per kg Rs: 90.00

32 Shutter oil per ltr Rs: 25.00

33 Stone chips at dump yard per cum Rs: 160.00

34 Structural steel angle / channel / beam / bar per kg Rs: 37.95

35 Structural steel plate / flat per kg Rs: 40.00

36 Un-coursed rubble stones at dump yard per cum Rs: 135.00

37 Water hose 20 mm dia per Rm Rs: 128.00

38 Welding electrodes ( general purpose ) per No. Rs: 6.00

39 Wire rope per kg Rs: 105.00

ROYALTY CHARGES : Per tonne

1 Sand / Fine aggregate Rs: 30.00

2 Stone / Coarse aggregate / Chips Rs: 30.00

TUNNEL AND ALLIED WORKS - REFERENCE DATA

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LEAD, LOADING & UNLOADING CHARGES: 1 km lead Loading Unloading

1 Cement Rs: 37.90 45.60 45.60

2 Earth / Sand / Gravel Rs: 35.10 41.30 8.50

3 Steel Rs: 37.90 45.60 45.60

4 Stone / Coarse aggregate Rs: 48.70 48.80 24.40

HIRE CHARGES OF MACHINERY: Crew charges

1 Agitator car truck mounted per hour Rs: 628.00 605.00 90.80

2 Air compressor 15 cmm ( ele ) per hour Rs: 108.00 627.00 60.10

3 Air compressor 8.5 cmm ( ele ) per hour Rs: 108.00 282.00 56.40

4 Bending machine per hour Rs: 39.00 75.00 45.90

5 Batching plant 6 cum / hr rated capacity Rs: 130.00 125.00 108.20

6 Concrete pneumatic placer pump per hour Rs: 133.00 3.00 28.80

7 Convey mucker per hour Rs: 658.00 174.00 60.10

8 DG set 30 KVA Rs: 60.00 440.00 45.10

9 Diesel loco 45 hp per hour Rs: 237.00 371.00 56.70

10 Drilling jumbo per hour Rs: 322.00 30.00 60.5011 Dumper 5 cum per hour Rs: 480.00 277.00 72.60

12 Grout pump per hour Rs: 19.00 25.00 89.20

13 Guniting equipment per hour Rs: 84.00 9.00 74.40

14 Jack hammer per hour Rs: 14.00 5.00 111.90

15 Pump 10 hp ( ele ) per hour Rs: 5.00 50.00 26.90

16 Pump 20 hp ( ele ) per hour Rs: 11.00 100.00 26.90

17 Pusher leg per hour Rs: 8.00 3.00 ---

18 Tipper 5 cum per hour Rs: 271.00 208.00 56.70

19 Tipping tub 1.5 cum per hour Rs: 30.00 9.00 ---

20 Transformer 250 KVA per month Rs: 3523.00 --- ---

21 Up-right drilling machine / Grinding machine Rs: 18.00 25.00 59.50

22 Ventilation fan 20 hp per hour Rs: 6.00 100.00 9.30

23 Vibrator ( ele ) per hour Rs: 7.00 5.00 53.30

24 Waggon drill Rs: 216.00 9.00 89.50

25 Welding transformer per hour Rs: 12.00 60.00 ---

26 Winch 35 hp electric per hour Rs: 98.00 175.00 90.80

WAGES OF WORKERS: Per day

1 Bar bender Rs: 159.00

2 Blasting helper Rs: 141.50

3 Carpentor Cl- II Rs: 148.50

4 Electrician Rs: 143.00

5 Fitter shuttering works Rs: 148.50

6 Mechanic Cl - I Rs: 157.50

7 Foreman Rs: 177.008 Helper fitter / erector / carpenter Rs: 141.50

9 Khalasi Rs: 145.50

10 Licensed Blaster Rs: 147.00

11 Lineman Rs: 141.50

12 Maistry Rs: 141.50

Fuel chargeHire charge

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13 Mason Cl-I Rs: 159.00

14 Mason Cl-II Rs: 148.50

15 Mazdoor ( Cement handling ) Rs: 134.00

16 Mazdoor ( Heavy) Rs: 132.00

17 Mazdoor ( Light ) Rs: 130.50

18 Pipe fitter Rs: 152.50

19 Stone breaker ( Hammerman ) Rs: 146.00

20 Stone chiseller Cl II Rs: 146.00

21 Structural steel Marker / Erector Rs: 157.50

22 Surveyor Rs: 154.50

23 Tinsmith Rs: 141.50

24 Turner / Driller Rs: 152.50

25 Welder / Gas cutter Rs: 157.50

ELECTRIC SUB-STATION MATERIALS:

1 Electric pole with fixtures per No. Rs: 4200.00

2 Flood light 500 W per Each Rs: 650.003 Flood light set per Each Rs: 1200.00

4 Fluoscent tube light 40 W per Each Rs: 50.00

5 Fluoscent tube light set per Each Rs: 190.00

6 Circuit breaker with accessories per set Rs: 30000.00

7 HT / LT Line conductor per 1000 Rm Rs: 27000.00

8 PVC Armoured cable 10 sqmm and below per Rm Rs: 48.00

9 PVC Armoured cable 16 sqmm per Rm Rs: 58.00



12 Transformer 250 kVA Rs: 297000.00

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 Demand charges on power supply per KVA / month Rs: 190.00

4 Electric Energy charges per kWhr Rs: 5.60

5 Insurance charges on machinery per annum % 1.00

6 Hidden cost on Labour % 15.00

Hidden cost on Labour ( additional for Tunnel works ) % 10.00

7 Rate of interest per annum % 11.00

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

9 Structural steel fabrication cost per kg Rs: 10.00

10 Sundries ( Lump sum rate for unquantified inputs ) Rs: 30.00

11 Cost of Electric sub-station & Demand charges ( Annexure - 1 ) % 4.20

12 Cost of Air and Water lines ( Annexure - 2 ) % 0.5013 Cost of Ventilation ( Annexure - 3 ) % 6.10

14 Cost of Lighting inside / out side tunnel ( Annexure - 4 ) % 1.90

15 Cost of Other enabling works ( Annexure - 5 ) % 1.70

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NOTES ON SCHEDULE OF RATES



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

un-loading Charges are applicable to Tunnel and Allied Works also to the extent they arerelevant.

2. The basic rates are inclusive additional costs for working inside tunnel.

3. The basic rates are inclusive of scaling loose material, removal of under-cuts, cleaning bed and

lighting and ventilation inside tunnel .

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

5. Unless otherwise specified the basic rates are inclusive of standard finish required for concrete

surface.

6. For excavation and concrete lining works of approach / exit channels the basic rates as

provided under ' Canal and allied works ' and ' Canal cross drainage works ' shall be adopted.

7. For intake structure, tunnel portals, retaining walls, pitching etc., the rates as provided under '

Dam and allied works ' shall be adopted.

8. The lead charges, wherever applicable, for all materials under various items shall be considered

only between quarry/ source of supply and batching plant / fabrication site. Further conveyance

of concrete / fabricated parts / other materials upto final placing site inside tunnel is included in

the basic rates upto 1 km.

9. 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 tender for regulating payment for any upword or downwordvariation in cement content.

10. 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.

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

ITEM: Excavation for adit by tunnelling methods in all types of rock including cost of all materials,

machinery, labour, scaling excavated surface, ventilation, lighting, drainage, removing and

hauling the excavated muck outside adit upto specified dump area and all other ancil lary

operations etc., complete with initial lead upto 500 m and all lifts.

DATA:Size of adit assumed ( finished section ) : 4.50 m dia

Shape of adit assumed for excavation : D - shape

Height of adit assumed ( finished section ) : 4.50 m

Pay-line margin assumed : 0.20 m

Diameter of adit upto pay line for excavation : 4.90 m

Distance of dump yard from face : within 500 m

Haulage of excavated muck : By dumpers

Pay line

Minimum excavation line

Excavated profile

TYPICAL CROSS SECTION OF ADIT / TUNNEL

1. Checking alignment and marking hole locations :

Deploy drilling jumbo for 1 hour for marking hole locations.

2. Drilling holes :

Full face method of excavation is assumed.

Area of adit upto pay-line ( 0.5 x 0.7857x 4.9 x 4.9 )+( 4.9 x 2.45 ) : 21.43 sqm

The drilling pattern for excavation of tunnel / adit depends on the size and shape of tunnel, rock

formation, type of explosive and the fragmentation of rock required to suite the type of mucking

equipment. The drilling pattern shall ensure minimum over-break.

Cut holes

Easers

Trimmers

TYPICAL DRILLING PATTERN FOR ADIT / TUNNEL

TUNNEL AND ALLIED WORKS- DATA RATES

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Generally, the cut holes and easers will be spaced at 650 to 750 mm grid and the trimmers will

be spaced at 500 to 600 mm apart along the periphery of excavation area.

Considering this, the number of holes for tunnel excavation will be generally in the range of 2.5

to 3 per sqm of cross sectional area upto pay line for small tunnels ( cross sectional area less

than 45 sqm ) and in the range of 2.0 to 2.5 per sqm of cross sectional area for large tunnels.

For rate analysis 2.5 holes per sqm of cross sectional area upto pay line considered for adit.

Number of holes for full face excavation ( 21.43 x 2.5 ) : 54 Nos

Depth of holes : 2 m

Extra drilling considered at 10 percent for inclined cut holes and for any secondary blasting of

large fragments during mucking.

Depth of drill ing for 54 holes ( 54 x 2 x 1.10 ) : 119 m

Average rate of drilling per hour per jack hammer : 5 m

Time for 4 jack hammers with pusher leg for drilling. ( 119 / 4 / 5 ) say : 6 hours

Time for 1 air compressor 15 cmm for air supply to 4 jack hammers : 6 hours

Time for drilling jumbo for drilling : 6 hours

Time for 10 hp pump for water supply to drilling work. : 6 hours

3. Loading explosive and blasting :

Depth of pull per blast for 2 m deep holes : 1.80 mQuantity of in-situ excavation per blast ( 21.43 x 1.80 ) : 38.6 cum

Quantity of explosive small dia per blast @ 1.00 kg per cum : 38 kg

Quantity of explosive for secondary blasting @ 5 % : 2 kg

Quantity of delay detonators per blast : 54 Nos.

Quantity of electric detonators for secondary blasting ( LS ) : 5 Nos.

Fuse coil : 120 Rm

Time for drilling jumbo for loading explosives. : 1 hour

4. Defuming and scaling loose materials:

No machinery other than ventilation fans are required. For defuming adit ventilation fans are

installed in duct system at about 300 m interval and are run for about 1 hour after each blast.

Consider 20 hp fan 1 No. for 1 hour for defuming.

5. Mucking excavated rock :

Quantity of muck to be removed per blast considering 40 % bulkage : 54 cum

Capacity of dumper per load : 5.00 cum

Quantity of muck per load considered under adit working conditions : 4.50 cum

Loading cycle time:

Turning / moving and spotting : 1 minute

Loading muck by convey mucker and work force : 20 minutes

Cycle time of loading dumper per load of 4.50 cum : 21 minutes

Haulage cycle time:

Running time from loading point to dump yard @ av 10 km / hr : 3.0 minutes

Turning and unloading : 2.0 minutes

Return trip to reversing point @ av 15 km / hr : 2.0 minutes

Cycle time for haulage per load of 4.5 cum : 7.0 minutes

Since the waiting time will be more than the running time if 2 dumpers are deployed deploy

1 dumper for conveying muck.

Round trip cycle time of dumper say : 30 minutesQuantity of muck disposal per hour / dumper : 9.00 cum

Time for 1 dumper for conveying muck @ 9 cum per hour : 6 hours

Time for convey mucker and labour force for loading : 6 hours

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6. Overall cycle time :

Checking alignment and marking hole locations : 2.00 hours

Drilling holes : 6.00 hours

Loading explosive and blasting : 2.00 hours

Defuming and scaling loose rock fragments : 2.00 hours

Mucking excavated rock : 6.00 hours

Bed cleaning, support fixing, rock bolting, lighting etc say : 6.00 hours

Total cycle of excavation per blast of 1.8 m length : 24.00 hours

7. Requirement of materials :

Explosive small dia ( 38 + 2 ) : 40 kg

Electric short delay detonators ( 54 x 1 ) : 54 Nos

Electric detonators for secondary blasting ( 1 x 5 ) : 5 Nos

Fuse coil : 120 Rm

8. Requirement of machinery :

Deploy drilling jumbo for marking (1 hr) / drilling (6 hrs) / loading explosive (1 hr) : 8 hours

Deploy air compressor 15 cmm for air supply to 4 jack hammers : 6 hours

Deploy 4 jack hammers with pusher leg for drilling. : 6 hours

Deploy 10 hp pump for water supply to drilling work. : 6 hours

Deploy 20 hp ventilation fan for defuming : 1 hour

Deploy convey mucker for loading excavated rock : 6 hoursDeploy 1 dumper for conveying muck : 6 hours

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

Surveyor

for checking alignment and marking hole locations for drilling : 0.5 No.

Foreman for supervising drilling of holes and other operations : 1 No.

Fitter / Mechanic

for extending air / water lines : 2 Nos.

Blaster ( Licensed ) : 1 No.

Helper blasting : 2 Nos.

Hammerman for scaling : 2 Nos.

Maistry 1 in each shift : 3 Nos.

Khalasi for mucking shift : 4 Nos.

Heavy mazdoor

for mucking shift : 4 Nos.

for other 2 shifts 1 No each shift : 2 Nos.

Light mazdoor

for cleaning & miscellaneous : 1 No.

10. Use rate of materials:

Cost of drill rod 2.5 m long @ Rs: 5660.00 / No. Rs: 5660.00

Life of drill rod with reconditionong : 150 m

Use rate of drill rod per Rm drilling ( cost / life ) Rs: 37.73

Length of air and water hose assumed : 25 m each

Cost of 25 mm dia air hose 25 m @ Rs: 150.00 / Rm Rs: 3750.00

Life of air hose : 800 hours

Use rate of air hose per hour ( cost / life ) Rs: 4.69

Cost of water hose 25 m each @ Rs: 128.00 / Rm Rs: 3200.00

Life of water hose : 800 hoursUse rate of water hose per hour ( cost / life ) Rs: 4.00

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RATE ANALYSIS UNIT : 38.60 cum

A. MATERIALS:

Sl No Unit Amount

in Rs.

1 Small dia explosive kg 40.00 45.00 1800.00

2 Delay detonators Nos 54.00 18.00 972.00

3 Electric detonators Nos 5.00 10.00 50.00

4 Detonating fuse coil Rm 120.00 8.00 960.00

5 Use rate of drill rod 2.5 m long Rm 119.00 37.73 4490.27

Reconditioning charges @ 10% 449.03

6 Use rate of air hose Hour 24.00 4.69 112.50

7 Use rate of water hose Hour 24.00 4.00 96.00

8 Sundries( paint / template etc ) LS 15.00 30.00 450.00

Total Rs: 9379.79

Add for small Tools and Plants @ 1% Rs: 93.80

Add for Contractor's Profit @ 10% Rs: 937.98

Add for Contractor's Overheads @ 5% Rs: 468.99

Total cost of Materials : Rs: 10880.56

B. MACHINERY:

Sl No Unit Amountin Rs.

1 Drilling jumbo Hour 8.00 322.00 2576.00

Fuel / Energy charges Hour 8.00 30.00 240.00

2 Air compressor 15 cmm ( ele ) Hour 6.00 108.00 648.00


3 Jack hammer ( 4 x 6 hrs ) Hour 24.00 14.00 336.00


4 Pusher leg Hour 24.00 8.00 192.00


5 Convey mucker Hour 6.00 658.00 3948.00


6 Dumper ( 1 x 6 hrs ) Hour 6.00 480.00 2880.00


7 Pump 10 hp ( ele ) ( 1 x 6 hrs ) Hour 6.00 5.00 30.00


8 Ventilation fans 20 hp ( 1 x 1 hr ) Hour 1.00 6.00 6.00


9 Sundries(explosive van / magazine ) LS 15.00 30.00 450.00

Total Rs: 18366.00


Add for Contractor's Profit on DPOL / Energy @ 10% Rs: 775.00


Total hire charges of Machinery : Rs: 20242.96

C. LABOUR:

Sl No Unit Amount

in Rs.1 Crew for Drilling jumbo Hour 8.00 60.50 484.00

Contd

C. LABOUR ( Contd ) :

Description

Description

in Rs.

Quantity Rate

in Rs.

Quantity Rate

in Rs.

Quantity RatePerticulars

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Sl No Unit Amount

in Rs.

Contd

2 Crew for Air compressor Hour 6.00 60.10 360.60

3 Crew for Jack hammer Hour 24.00 111.90 2685.60

4 Crew for Convey mucker Hour 6.00 60.10 360.60

5 Crew for Dumper Hour 6.00 72.60 435.60

6 Crew for Pump Hour 6.00 26.90 161.40

7 Crew for ventilation fans Hour 1.00 9.30 9.30

8 Surveyor Day 0.50 154.50 77.25

9 Foreman Day 1.00 177.00 177.00

10 Fitter / Mechanic Day 2.00 157.50 315.00

11 Blaster ( Licensed ) Day 1.00 147.00 147.00

12 Helper blasting Day 2.00 141.50 283.00

13 Hammerman Day 2.00 146.00 292.00

14 Maistry 1 in each shift Day 3.00 141.50 424.50

15 Khalasi

for mucking shift 4 Nos Day 4.00 145.50 582.00

16 Heavy mazdoor


for other 2 shifts 1 No each shift Day 2.00 132.00 264.0017 Light mazdoor

for cleaning & miscellaneous Day 1.00 130.50 130.50

Total Rs: 7717.35



Add for hidden cost on Labour @ 15% Rs: 1157.60

Add for additional hidden cost on labour @ 10% Rs: 771.74


Total cost of Labour : Rs: 10881.46

ABSTRACT:

A. Cost of Materials Rs: 10880.56

B. Hire charges of Machinery Rs: 20242.96

C. Cost of Labour Rs: 10881.46

TOTAL Rs: 42004.98

Add for Air and Water line @ 0.50% Rs: 210.02

Add for Ventilation @ 6.10% Rs: 2562.30

Add for Lighting @ 1.90% Rs: 798.09

Add for Ele sub-station / Demand charges @ 4.20% Rs: 1764.21

Add for other Enabling works @ 1.70% Rs: 714.08

Total cost for 38.60 cum Rs: 48053.70

Rate per cum Rs: 1245.00

Rate approved per cum Rs: 1245.00


ITEM: Excavation for vertical / inclined shaftin all types of soft / hard rock including cost of allmaterials, machinery, labour, shoring, strutting, scaling excavated surface, ventilation, lighting,

drainage, removing and hauling excavated muck outside shaft upto specified dump area and

all other ancillary operations etc., complete with initial lead upto 1 km and all lifts.

Description Quantity Rate

in Rs.

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DATA:Size of shaft assumed : 5.00 m dia

Shape of shaft assumed for excavation : Circular

Depth of shaft assumed : 75.00 m


Diameter of shaft upto pay line for excavation : 5.40 m

Distance of dump yard from face : within 500 m

Average lift assumed for excavation of shaft upto tunnel level : 40 m


Use of winch & cradle during marking hole locations : 1 hour

2. Drilling holes :

Area of excavation upto payline ( 0.7857 x 5.4 x 5.4 ) : 22.91 sqm

Depth of drilling : 1.50 m

Depth of pull : 1.30 m

No.of peripheral holes @ 0.65 m spacing ( 20 times dia ) : 24 Nos.

No. of holes in shaft area @ 2 per sqm ( 0.7857 x 5 x 5 x 2 ) : 40 Nos.

Depth of drilling for 64 holes ( 64 x 1.5 ) : 96 m

Extra drilling considered at 5 percent for secondary blasting of large fragments.

Total depth of drilling ( 96 x 1.05 ) say : 101 m


Time for 4 jack hammers for drilling. ( 101 / 4 / 5 ) say : 5 hoursTime for 1 air compressor 15 cmm for air supply to 4 jack hammers : : 5 hours

Time for 10 hp pump for pumping water to storage tank. : 5 hours

Time for 20 hp sludge pump for removing drill water from pit : 2 hours

Total time for drilling including preparation for drilling : 5 hours


Quantity of in-situ excavation per blast ( 22.91 x 1.30 ) : 30 cum


Quantity of explosive for secondary blasting @ 5 % : 2 kg

Quantity of electric detonators for blasting : 69 Nos.

Detonating fuse coil : 120 Rm

Use of winch & cradle during loading of explosives : 1 hour

4. Defuming shaft:

Generally for shafts defuming is carried out by leaving compressed air by air hose for about

0.5 hour to remove blasting gases and dust. Use air compressor for 0.5 hour.


Winch and 0.5 cum bottom / side opening bucket are considered for removing the muck from

shaft and rail mounted tipping tubs are considered for further haulage and disposal.


Deploy 8 heavy mazdoors for mucking in the shaft.

Consider out-put of each mazdoor at 3 cum / day for working on rocky surface.

Time for loading 0.5 cum bucket ( 0.5 x 8 x 60 / 3 / 8 ) : 10 min

Cycle time for operating mucking bucket by winch :

Lowering bucket by winch @ 15 m / minute for av. 40 m : 3.00 min

Loading muck by work force : 10.00 min

Lifting by winch @ 15 m / minute for av. 40 m : 3.00 min

Unloading to tipping tub : 1.50 mun

Over all cycle time for mucking 0.5 cum by deploying 2 buckets say : 10.00 min

Quantity of muck per mucking bucket : 0.50 cum

Time required for mucking 42 cum ( 42 x 10 / 0.50 / 60 ) : 14 hours

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Considering time for shift change etc., total time required for mucking : 16 hours

Considering use of winch during marking / drilling / blasting / time for shift change / etc., deploy

winch for 24 hours with fuel / energy charges for 16 hours.

Use 2 mucking buckets for 16 hours for removing muck from shaft.

Use 1 tipping tub for 16 hours for disposal of muck outside shaft.


Marking hole locations and preparation for drilling : 0.50 hours



Defuming by leaving compressed air : 0.50 hours


Total cycle of excavation per blast of 1.3 m depth : 24.00 hours



Electric detonators for main / secondary blasting ( 24 + 40 + 5 ) : 69 Nos

Fuse coil : 120 Rm

8. Requirement of machinery :

Deploy winch for various operations : 24 hours

( marking holes 1 hr + drilling 5 hrs + loading explosives 1 hr + mucking 16 hrs + misc 1 hr)

Deploy air compressor 15 cmm for air supply to 4 jack hammers : 5.5 hours

( drilling 5 hrs + defuming 0.5 hr )Deploy 4 jack hammers for drilling. : 5 hours

Deploy 10 hp pump for water supply to drilling work. : 5 hours

Deploy 20 hp sludge pump for removing drill water : 2 hours

Deploy 1 tipping tub for conveying muck : 16 hours


Surveyor

for checking alignment and marking hole locations for drilling : 0.5 No.

Foreman for supervising winch and other operations ( 1 in each shif t ) : 3 Nos.

Fitter / Mechanic

for arranging air / water lines / sludge pump etc. : 2 Nos.



Hammerman for scaling / breaking large stones ( 4 in 2 mucking shifts ) : 4 Nos.

Maistry ( 1 in each shift ) : 3 Nos.

Khalasi ( 8 in 2 mucking shifts ) : 8 Nos.

Heavy mazdoor

for mucking shift ( 8 in each shift for 2 shifts ) : 16 Nos.

for other 1 shift ( 2 Nos ) : 2 Nos.

Light mazdoor

for cleaning & miscellaneous : 2 Nos.



Life of drill rod with reconditioning : 150 m







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Life of water hose : 800 hours

Use rate of water hose per hour ( cost / life ) Rs: 16

Quantity of rails for haulage of tubs Haulage track outside : 2 x 150 m

Weigth of 30R rails 300 m length @ 30 kg / Rm : 9 tonnes

Cost of 30 R rails 300 m @ Rs: 42000.00 / tonne Rs: 378000.00

Add for fixtures @ 25% Rs: 94500.00

Total Rs: 472500.00

Less salvage value @ 10% ( - ) Rs: -47250.00

Total Rs: 425250.00

Life of rails under tunnel working conditions : 15 years

Use rate of rails per year ( cost / life ) Rs: 28350.00

Add for repairs & replacement @ 10% Rs: 2835.00

Total Rs: 31185.00

Use rate of rails per shift considering 300 working days Rs: 103.95

Consider use of rail track for 24 hours.

Length of 16 mm dia wire rope for winch assuming 80 m deep shaft : 150 m

Cost of wire rope 150 m ( 160 kg ) @ Rs: 105.00 / kg Rs: 16800.00

Life of wire rope for lifting : 2500 hours

Use rate of wire rope per hour ( cost / life ) Rs: 6.72

Weight of mucking bucket : 250 kg

Cost of steel plates @ 75 % @ Rs: 40.00 / kg Rs: 7500.00Cost of steel angles @ 25 % @ Rs: 37.95 / kg Rs: 2371.88

Cost of fabrication @ Rs: 10.00 / kg Rs: 2500.00

Total Rs: 12371.88

Add for hooks / door arrangements etc @ 25% Rs: 3092.97

Total Rs: 15464.84

Less salvage value @ 10% ( - ) Rs: -1546.48

Add for repairs / maintenance etc @ 10% Rs: 1546.48

Total Rs: 15464.84

Life of mucking bucket assumed : 2500 hours

Use rate of mucking bucket per hour ( cost / life ) Rs: 6.19


A. MATERIALS:

Sl No Unit Amount

in Rs.


2 Electric detonator Nos 69.00 10.00 690.00




5 Use rate of air hose ( 4 x 5 + 0.5 ) Hour 22.00 18.75 412.50

6 Use rate of water hose ( 4 x 5 ) Hour 20.00 16.00 320.00

7 Use rate of rail track Shift 2.00 103.95 207.90

8 Use rate of wire rope Hour 24.00 6.72 161.28

Contd

A. MATERIALS ( Contd ) :

Sl No Unit Amount

in Rs.

Contd

9 Use rate of mucking bucket ( 2 x 16 ) Hour 32.00 6.19 197.95

Perticulars

in Rs.

Quantity Rate

Perticulars Quantity Rate

in Rs.

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10 Sundries ( paint / template etc ) LS 10.00 30.00 300.00

Total Rs: 7207.90





B. MACHINERY:

Sl No Unit Amount

in Rs.



2 Jack hammer ( 4 x 5 hrs ) Hour 20.00 14.00 280.00


3 Pump 10 hp ( ele ) Hour 5.00 5.00 25.00


4 Sludge pump 20 hp electric Hour 2.00 11.00 22.00


5 Winch 35 hp electric Hour 24.00 98.00 2352.00


6 Tipping tub 1.5 cum Hour 16.00 30.00 480.00Fuel / Energy charges Hour 16.00 9.00 144.00

7 Sundries ( explosive van / magazine ) LS 10.00 30.00 300.00

Total Rs: 10995.50





C. LABOUR:

Sl No Unit Amount

in Rs.



3 Crew for Pump 10 hp Hour 5.00 26.90 134.50

4 Crew for Sludge pump 20 hp Hour 2.00 26.90 53.80

5 Crew for Winch Hour 24.00 90.80 2179.20

6 Surveyor Day 0.50 154.50 77.25

7 Foreman Day 3.00 177.00 531.00


9 Blaster ( Licensed ) Day 1.00 147.00 147.00

10 Helper blasting Day 2.00 141.50 283.00

11 Hammerman 2 Nos each for 2 shifts Day 4.00 146.00 584.00


Contd

C. LABOUR ( Contd ) :

Sl No Unit Amount

in Rs.

Contd

13 Khalasi

for mucking 4 Nos each for 2 shifts Day 8.00 145.50 1164.00

Description

Description

Quantity Rate

in Rs.

in Rs.


in Rs.

Quantity Rate

15


16/20


14 Heavy mazdoor

for mucking 8 Nos each for 2 shifts Day 16.00 132.00 2112.00

for other 1 shift 2 Nos Day 2.00 132.00 264.00

15 Light mazdoor


Total Rs: 11098.80







ABSTRACT:


B. Hire charges of Machinery Rs: 12379.48

C. Cost of Labour Rs: 15649.31

TOTAL Rs: 36389.95



Add for Lighting @ 1.90% Rs: 691.41Add for Ele sub-station / Demand charges @ 4.20% Rs: 1528.38



Rate per cum Rs: 1314.00

Rate approved per cum Rs: 1314.00


ITEM: Excavation for tunnel by tunnelling methods in rock not requiring supports including cost

of all materials,machinery, labour, scaling excavated surface, removing under-cuts, ventilation,

lighting, drainage, removing and hauling the excavated muck outside tunnel upto specified

dump area and all other ancillary operations etc., complete with initial lead upto 1 km and

all lifts.

DATA:Size of tunnel assumed ( finished section ) : 4.50 m dia

Shape of tunnel assumed for excavation : D - shape

Height of tunnel assumed ( finished section ) : 4.50 m

Length of tunnel assumed : 1000 m

Thickness of CC lining : 0.30 m


Diameter of tunnel upto pay line for excavation : 5.50 m

Distance of dump yard from face including approach / adit length : Average 1 km

Haulage of excavated muck : By dumpers

Pay line

Concrete lining

Minimum excavation line

Excavated profile Finished tunnel line

16


17/20


TYPICAL CROSS SECTION OF TUNNEL 4.50 m dia.


Use of drilling jumbo for marking hole locations : 1 hour

2. Drilling holes :

Area of tunnel upto pay-line( 0.5 x 0.786 x 5.5 x 5.5 )+( 5.5 x 2.75 ) : 27.00 sqm

The number of holes for tunnel excavation will be generally in the range of 2.5 to 3.0 per sqm

of cross sectional area upto pay line for tunnel upto 45 sqm and in the range of 2.0 to 2.5 per

sqm of cross sectional area upto pay line for tunnel exceeding 45 sqm.

For rate analysis 2.5 holes per sqm of cross sectional area considered.

Number of holes for full face excavation ( 27 x 2.5 ) : 68 Nos

Depth of holes : 2 m

Extra drilling considered at 10 percent for inclination of holes and for removal of any under cuts

and for secondary blasting of large fragments during mucking.

Depth of drill ing for 68 holes ( 68 x 2 x 1.10 ) : 150 m


Time for 4 jack hammers with pusher leg for drilling. ( 150 / 4 / 5 ) say : 7.5 hoursTime for 1 air compressor 15 cmm for air supply to 4 jack hammers : 7.5 hours

Time for drilling jumbo for drilling : 8 hours

Time for 10 hp pump for water supply to drilling work. : 7.5 hours


Depth of pull per blast for 2 m deep holes : 1.80 m

Quantity of in-situ excavation per blast ( 27.00 x 1.80 ) : 49 cum


Quantity of explosive for under cuts secondary blasting @ 10 % : 5 kg

Quantity of delay detonators per blast : 68 Nos.

Quantity of electric detonators for secondary blasting ( LS ) : 10 Nos.

Detonating fuse coil ( LS ) : 160 Rm

Time for drilling jumbo for loading explosives : 1.5 hour

4. Defuming and scaling loose materials:

No machinery other than ventilation fans required. For defuming tunnel ventilation fans are

installed in duct system at about 300 m interval and are run for about 1 hour after each blast.

For 1 km length of tunnel ventilation fans are required at 4 places at 300 m interval. As the fans

are installed progressively, for rate analysis consider average 2 fans for 1 hour.



Capacity of dumper per load : 5.00 cum

Quantity of muck per load considered under tunnel working conditions : 4.50 cum

Loading cycle time:

Moving from turning pocket position and spotting : 1 minutes

Loading muck by convey mucker and work force : 20 minutes

Time for loaded dumper to pass waiting point say : 1 minutes

Cycle time of loading dumper per load of 4.50 cum : 22 minutes

Haulage cycle time:

Running time from loading point to dump yard at av. 10 km / hr : 6 minutes

Turning and unloading : 2 minutes

17


18/20


Return trip to waiting point @ av. 15 km / hr : 4 minutes

Waiting time before spotting : 9 minutes

Cycle time for haulage per load of 4.5 cum : 21 minutes

Round trip cycle time of dumper ( 22 + 21 ) say : 45 minutes

Quantity of muck disposal per hour / dumper : 6.00 cum

Deploy 2 dumpers for conveying muck @ 12 cum per hour say : 6 hours

Deploy convey mucker and labour force for loading : 6 hours


Checking alignment and marking hole locations : 2.00 hours



Defuming and scaling loose rock fragments : 2.00 hours


Bed cleaning, support fixing, rock bolting, lighting etc say : 4.50 hours

Total cycle of excavation per blast of 1.8 m length : 24.00 hours



Electric short delay detonators ( 68 x 1 ) : 68 Nos

Electric detonators for secondary blasting ( 10 x 1 ) : 10 Nos

Fuse coil : 160 Rm

8. Requirement of machinery :Deploy drilling jumbo for various operations 11 hours

( marking holes 1 hr + drilling 7.5 hrs + loading explosives 1.5 hrs + misc 1 hr )

Deploy air compressor 15 cmm for air supply to 4 jack hammers : 7.5 hours

Deploy 4 jack hammers with pusher leg for drilling. : 7.5 hours

Deploy 10 hp pump for water supply to drilling work. : 7.5 hours

Deploy 20 hp ventilation fan for defuming : 2 hours

Deploy convey mucker for loading excavated rock : 6 hours

Deploy 2 dumper for conveying muck : 6 hours


Surveyor

for checking alignment and marking hole locations for drilling : 1 No.

Foreman for supervising drilling of holes and other operations : 1 No.

Fitter / Mechanic

for extending air / water lines : 2 Nos.



Hammerman for scaling : 2 Nos.

Maistry 1 in each shift : 3 Nos.

Khalasi for mucking shift : 4 Nos.

Heavy mazdoor :for mucking shift : 8 Nos.

for other 2 shifts 2 No each shift : 4 Nos.

Light mazdoor :

for cleaning & miscellaneous : 2 Nos.



Life of drill rod with reconditioning : 150 m


18


19/20







Life of water hose : 800 hours

Use rate of water hose per hour ( cost / life ) Rs: 4.00


A. MATERIALS:

Sl No Unit Amount

in Rs.


2 Delay detonators Nos 68.00 18.00 1224.00

3 Electric detonators Nos 10.00 10.00 100.00




6 Use rate of air hose Hour 30.00 4.69 140.63

7 Use rate of water hose Hour 30.00 4.00 120.00

8 Sundries ( paint / template etc ) LS 8.00 30.00 240.00Total Rs: 11760.63





B. MACHINERY:

Sl No Unit Amount

in Rs.

1 Drilling jumbo Hour 11.00 322.00 3542.00




3 Jack hammer ( 4 x 7.5 hrs ) Hour 30.00 14.00 420.00


4 Pusher leg Hour 30.00 8.00 240.00


5 Convey mucker Hour 6.00 658.00 3948.00


Contd

B. MACHINERY ( Contd ) :

Sl No Unit Amountin Rs.

Contd

6 Dumper ( 2 x 6 hrs ) Hour 12.00 480.00 5760.00


7 Pump 10 hp ( ele ) Hour 7.50 5.00 37.50


8 Ventilation fans 20 hp ( 2 x 1 ) Hour 2.00 6.00 12.00


Perticulars

Description

in Rs.

in Rs.

Rate

Quantity Rate

Quantity

Description Quantity Ratein Rs.

19


20/20


9 Sundries ( explosive van / magazine ) LS 8.00 30.00 240.00

Total Rs: 25225.00





C. LABOUR:

Sl No Unit Amount

in Rs.

1 Crew for Drilling jumbo Hour 11.00 60.50 665.50



4 Crew for Convey mucker Hour 6.00 60.10 360.60

5 Crew for Dumper Hour 12.00 72.60 871.20

6 Crew for Pump Hour 7.50 26.90 201.75

7 Crew for ventilation fans Hour 2.00 9.30 18.60

8 Surveyor Day 1.00 154.50 154.50

9 Foreman Day 1.00 177.00 177.00


11 Blaster ( Licensed ) Day 1.00 147.00 147.0012 Helper blasting Day 2.00 141.50 283.00

13 Hammerman Day 2.00 146.00 292.00


15 Khalasi


16 Heavy mazdoor


for other 2 shifts 2 No each shift Day 4.00 132.00 528.00

17 Light mazdoor


Total Rs: 10145.40







ABSTRACT:


B. Hire charges of Machinery Rs: 27784.05C. Cost of Labour Rs: 14305.01

TOTAL Rs: 55731.39



Add for Lighting @ 1.90% Rs: 1058.90

Add for Ele sub-station / Demand charges @ 4.20% Rs: 2340.72




in Rs.

data rates-tunnel works 1

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