GOVERNMENT OF KARNATAKA WATER RESOURCES DEPARTMENT SCHEDULE OF RATES TUNNEL AND ALLIED WORKS REFERENCE DATA NOTES ON BASIC RATES

Transcription

1 RATES IN THIS FILE ARE LINKED WITH RATES IN BASIC DATA / HIRE CHARGES / LEAD CHARGES FILES TO THE EXTENT THEY ARE RELEVANT. IN THE DIALOG BOX THAT APPEARS ON THE MONITOR SCREEN ON OPENING THIS FILE CLICK ' YES ' AND ' SAVE ' THE FILE. CHANGES MADE IN BASIC DATA / HIRE CHARGES / LEAD CHARGES FILES GET INCORPORATED IN THIS FILE AUTOMATICALLY. ALL DATA IN THIS FILE IS PROTECTED BY PASS WORD. GOVERNMENT OF KARNATAKA WATER RESOURCES DEPARTMENT SCHEDULE OF RATES TUNNEL AND ALLIED WORKS FOR THE YEAR CONTENTS PAGES REFERENCE DATA NOTES ON BASIC RATES DATA RATES

2 PREPARED BY SCHEDULE OF RATES COMMITTEE JUNE,

3 TUNNEL AND ALLIED WORKS - REFERENCE DATA FOR THE YEAR : ITEMS : 1-21 COST OF MATERIALS: Acetylene gas per cum Rs: Air hose 25 mm dia per Rm Rs: Binding wire per kg Rs: Cement 43 Gr per kg Rs: 2.90 Coarse aggregate mm / cum Rs: Coarse aggregate mm / cum Rs: Coarse aggregate40-20 mm / cum Rs: Concrete admixture( Super plasticiser ) per ltr Rs: Cross bit ( TC ) 75 mm dia per No. Rs: Demand charges per KVA / month Rs: Detonating fuse coil per Rm Rs: 5.00 Detonator delay type per No. Rs: Detonator electric per No. Rs: 8.00 Detonator ordinary per No. Rs: 4.50 Electric poles with fixtures per No. Rs: Energy charges ( HT-2B ) per Kwhr Rs: 4.57 Explosive ( small dia ) per kg Rs: Extension rod with coupling sleeve per Rm Rs: Fine aggregate/ sand ( screened ) per cum Rs: Flood light 500 W per No. Rs: Flood light set per No. Rs: Fluorescent tube 40 W per No. Rs: Fluorescent tube light set per No. Rs: G I Pipe 80 mm dia per Rm Rs: G I Pipe100 mm dia per Rm Rs: G.I. Bolts and Nuts per kg Rs: Guniting nozzle per No. Rs: HT / LT Circuit breaker per No Rs: HT / LT Line conductor per km Rs: Jungle wood planks per cum Rs: Jack hammer drill rod 1.5 m per No. Rs: Jack hammer drill rod 2.5 m per No. Rs: M S Bolts & Nuts per kg Rs: Oxygen gas per cum Rs: Plain G.I. Sheet per t Rs: PVC armoured cable 70 sqmm per Rm Rs: PVC armoured cable 25 sqmm per Rm Rs: PVC armoured cable 16 sqmm per Rm Rs: PVC armoured cable 10 sqmm & below per Rm Rs: Rails 30 kg / m per tonne Rs: Reinforcement steel per kg Rs: Resin bond cement grout capsule per No. Rs: Rivets per kg Rs: Shalimastic sealing compound per kg Rs: Shutter fabrication cost per kg Rs: 8.00 Shutter oil per ltr Rs: Stone chips at dump yard per cum Rs: Structural steel angle/ channel/ flat per kg Rs:

4 Structural steel plate per kg Rs: Sundries Rs: Un-coursed rubble stones at dump yard per cum Rs: Water hose 20 mm dia per Rm Rs: Welding electrodes per No. Rs: 4.00 Wire rope for winch 16 mm dia per Rm Rs: ROYALTY CHARGES : Per tonne Sand / Fine aggregate Stone / Coarse aggregate / Chips LEAD, LOADING & UNLOADING CHARGES: 1 km lead Loading Unloading Cement Rs: Earth / Sand / Gravel Rs: Steel Rs: Stone / Coarse aggregate Rs: HIRE CHARGES OF MACHINERY: Hire charge Fuel charge Crew charges Agitator car truck mounted per hour Rs: Air compressor 15 cmm ( ele ) per hour Rs: Air compressor 8.5 cmm ( ele ) per hour Rs: Bending machine per hour Rs: Batching plant 2 x 1 cum per hour Rs: Concrete placer pump per hour Rs: Convey mucker per hour Rs: DG set 30 KVA Rs: Diesel loco 45 hp per hour Rs: Drilling jumbo per hour Rs: Dumper 5 cum per hour Rs: Grout pump per hour Rs: Guniting equipment per hour Rs: Jack hammer per hour Rs: Pump 10 hp ( ele ) per hour Rs: Pump 20 hp ( ele ) per hour Rs: Pusher leg per hour Rs: Tipper 5 cum per hour Rs: Tipping tub 1.5 cum per hour Rs: Transformer 250 KVA per month Rs: Ventilation fan 20 hp per hour Rs: Vibrator ( ele )per hour Rs: Waggon drill Rs: Welding set per hour Rs: Winch 35 hp electric per hour Rs:

5 WAGES OF WORKERS: Per day Bar bender Rs: Blasting helper Rs: Carpentor Cl- II Rs: Electrician Rs: Fitter shuttering works Rs: Fitter/ Mechanic Rs: Foreman Rs: Helper fitter / erector Rs: Khalasi Rs: Licensed Blaster Rs: Lineman Rs: Maistry Rs: Mason Cl-I Rs: Mason Cl-II Rs: Mazdoor ( Heavy) Rs: Mazdoor ( Light ) Rs: Pipe fitter Rs: Stone breaker ( Hammerman ) Rs: Stone chiseller Cl II Rs: Structural steel marker / erector Rs: Surveyor Rs: Tinsmith Rs: Turner / Driller Rs: Welder / Gas cutter Rs:

6 NOTES ON SCHEDULE OF RATES TUNNEL AND ALLIED WORKS FOR THE YEAR : 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 are relevant. 2. The basic rates are inclusive of finishing, wastage of materials in handling, incidental works, profit, overheads, small tools / plants, hidden cost on labour etc. 3. The basic rates are inclusive additional costs for working inside tunnel. 4. The basic rates are inclusive of scaling loose material, removal of under-cuts, cleaning bed and lighting and ventilation inside tunnel. 5. The basic rates are inclusive of royalty charges payable on materials. 6. The recovery of royalty charges on materials, wherever applicable, shall be as per the guide lines listed under ' General notes on schedule of rates' and the amount of royalty charges shall be as per the statement of royalty charges included in this section. 7. Unless otherwise specified the basic rates are inclusive of all lifts. 8. Unless otherwise specified the basic rates are inclusive of standard finish required for concrete surface. 9. 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. 10. For intake structure, tunnel portals, retaining walls, pitching etc., the rates as provided under ' Dam and allied works ' shall be adopted. 11. 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. 12. 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 incidental works if any. The actual cement content may vary based on trial mix studies. Suitable clause shall be included in the tender for regulating payment for any upword or downword variation in cement content. 13. 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. 14. The basic rates are exclusive of cost of dewatering. Separate provision shall be made in the estimate for dewatering on Kwhr basis. The total provision for dewatering shall not exceed 5 percent of cost of work. 5

7 TUNNEL AND ALLIED WORKS- DATA RATES SECTION: TUNNEL AND ALLIED WORKS. YEAR: 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 ancillary 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 Excavated profile Pay line Minimum excavation line 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 x 4.9 x 4.9 )+( 4.9 x 2.45 ) : 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. Generally, the cut holes and easers will be spaced at 65 to 75 cm grid and the trimmers will be spaced at 50 to 60 cm 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 for small tunnels 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 considered. Cut holes Easers Trimmers TYPICAL DRILLING PATTERN FOR ADIT / TUNNEL 6

8 Number of holes for full face excavation : 54 Nos Depth of holes : 2 m Extra drilling considered at 10 percent for inclination cut holes and for any secondary blasting of large fragments during mucking. Depth of drilling for 54 holes ( 54 x 2 x 1.10 ) : 119 m Average rate of drilling per hour per jack hammer : 6 m Deploy 4 jack hammers with pusher leg for drilling. say : 5 hours Deploy 1 air compressor 15 cmm for air supply to 4 jack hammers : 5 hours Deploy drilling jumbo for drilling : 5 hours Deploy 10 hp pump for water supply to drilling work. : 5 hours 3 Loading explosive and blasting : Depth of pull per blast for 2 m deep holes : 1.80 m Quantity of in-situ excavation per blast ( x 1.80 ) : 38.5 cum Quantity of explosive small dia per 1.00 kg per cum : 38 kg Quantity of explosive for secondary 5 % : 2 kg Total quantity of explosive per blast : 40 kg Quantity of delay detonators per blast : 54 Nos. Quantity of electric detonators for secondary blasting LS : 5 Nos. Fuse coil : 50 Rm Deploy drilling jumbo for 1 hour for loading explosives. 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 hr. 5 Mucking excavated rock : Quantity of muck to be removed per blast considering 50 % bulkage : 58 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 minutes 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 av 10 km / hr : 3.0 minutes Turning and unloading : 2.0 minutes Return trip to reversing point : 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 minutes Quantity of muck disposal per hour / dumper : 9.00 cum Deploy 1 dumper for conveying 9 cum per hour : 6.5 hours Deploy convey mucker and labour force for loading : 6.5 hours 6 Overall cycle time : Checking alignment and marking hole locations : 2.00 hours Drilling holes : 5.00 hours Loading explosive and blasting : 2.00 hours Defuming and scaling loose rock fragments : 2.00 hours Mucking excavated rock : 6.50 hours Bed cleaning, support fixing, rock bolting, lighting etc say : 6.50 hours Total cycle of excavation per blast of 1.8 m length : hours Deploy drilling jumbo for total 8 hours including time for movement. 7 Use rate of materials: Cost of drill rod 2.5 m Rs: / No. Rs:

9 Life of drill rod with reconditionong : 150 m Use rate of drill rod per Rm drilling ( cost / life ) Rs: Length of air and water hose assumed : 25 m each Cost of air hose 25 m Rs: / Rm Rs: Life of air hose : 800 hours Use rate of air hose per hour ( cost / life ) Rs: 3.75 Cost of water hose 25 m Rs: / Rm Rs: Life of water hose : 800 hours Use rate of water hose per hour ( cost / life ) Rs: 3.44 RATE ANALYSIS UNIT : cum A. MATERIALS: Sl No Perticulars Unit Quantity Rate Amount 1 Small dia explosive kg Delay detonators Nos Electric detonators Nos Detonating fuse coil Rm Use rate of drill rod 2.5 m long Rm Reconditioning 10% Use rate of air hose Hour Use rate of water hose Hour Sundries( paint / template etc ) LS TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' 10% Rs: Add for Contrators' 5% Rs: Total cost of Materials Rs: B. MACHINERY: 1 Drilling jumbo Hour Fuel / Energy charges Hour Air compressor 15 cmm ( ele ) Hour Fuel / Energy charges Hour Jack hammer ( 4 x 5 hrs ) Hour Fuel / Energy charges Hour Pusher leg Hour Fuel / Energy charges Hour Convey mucker Hour Fuel / Energy charges Hour Dumper ( 1 x 6.5 hrs ) Hour Fuel / Energy charges Hour Pump 10 hp ( ele ) Hour Fuel / Energy charges Hour Ventilation fans 20 hp Hour Fuel / Energy charges Hour Sundries(explosive van / magazine ) LS TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' Profit on DPOL / 10% Rs: Add for Contrators' 5% Rs: Total hire charges of Machinery Rs:

10 C. LABOUR: 1 Crew for Drilling jumbo Hour Crew for Air compressor Hour Crew for Jack hammer Hour Crew for Convey mucker Hour Crew for Dumper Hour Crew for Pump Hour Crew for ventilation fans Hour Surveyor Day Foreman Day Fitter / Mechanic Day Blaster ( Licensed ) Day Helper blasting Day Hammerman Day Maistry 1 in each shift Day Khalasi for mucking shift 4 Nos Day Heavy mazdoor for mucking shift 4 Nos Day for other 2 shifts 1 No each shift Day Light mazdoor for cleaning & miscellaneous Day TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' 10% Rs: Add for hidden cost on 15% Rs: Add for additional hidden cost on 10% Rs: Add for Contrators' 5% Rs: Total cost of Labour Rs: ABSTRACT: A. Cost of Materials Rs: B. Hire charges of Machinery Rs: C. Cost of Labour Rs: Total Rs: Add for Air and Water 1.00% Rs: Add for 4.50% Rs: Add for 1.60% Rs: Add for Ele sub-station / Demand 5.00% Rs: Add for other Enabling 2.00% Rs: Total cost for cum Rs: Rate per cum Rs: SECTION: TUNNEL AND ALLIED WORKS. YEAR: ITEM No: 2 ITEM: Excavation for vertical / inclined shaft in all types of soft / hard rock including cost of all materials, 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. DATA:Size of shaft assumed : 5.00 m dia Shape of shaft assumed for excavation : Circular Depth of shaft assumed : m 9

11 Pay-line margin assumed : 0.20 m Diameter of shaft upto pay line for excavation : 5.40 m Distance of dump yard from face : within 500 m Average lift involved for excavation of shaft upto tunnel level : 40 m 1 Checking alignment and marking hole locations : Deploy winch & cradle for 0.5 hour for marking hole locations. 2 Drilling holes : Area of excavation upto payline ( x 5.4 x 5.4 ) : sqm Depth of drilling : 1.50 m Depth of pull : 1.30 m No. of peripheral holes with 0.75 m spacing ( 20 times dia ) : 20 Nos. No. of holes in shaft 2 per sqm : 40 Nos. Depth of drilling for 60 holes : 90 m Extra drilling considered at 5 percent for secondary blasting of large fragments. Total depth of drilling ( 90 x 1.05 ) : 95 m Average rate of drilling per hour per jack hammer : 6 m Deploy 4 jack hammers for drilling. : 4 hours Deploy 1 air compressor 15 cmm for air supply to 4 jack hammers : 4 hours Deploy 10 hp pump for pumping water to storage tank. : 4 hours Deploy 20 hp sludge pump for removing drill water from pit : 2 hour Total time for drilling including preparation for drilling : 5 hours 3 Loading explosive and blasting : Quantity of in-situ excavation per blast ( x 1.30 ) : 30 cum Quantity of explosive small dia per 1.0 kg per cum : 30 kg Quantity of explosive for secondary 5 % : 2 kg Total quantity of explosive : 32 kg Quantity of electric detonators for blasting : 65 Nos. Detonating fuse coil : 50 Rm 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.deploy air compressor for 0.5 hour. 5 Mucking excavated rock : 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. Quantity of muck to be removed per blast considering 50 % bulkage : 45 cum Cycle time for operating mucking bucket by winch : Lowering bucket by 15 m / minute for av. 40 m : 3.00 min Loading muck by work force : 7.50 min Lifting by 15 m / minute for av. 40 m : 3.00 min Unloading to tipping tub : 1.50 mun Say : min Quantity of muck per mucking bucket : 0.50 cum Time required for mucking 45 cum ( 45 x 15 / 0.50 / 60 ) : 22.5 hours Deploy winch for 28 hours including time for movement of work force in shifts. Deploy 1 mucking bucket for 24 hours for removing muck from shaft. Deploy 1 tipping tub for 24 hours for disposal of muck outside shaft. 6 Overall cycle time : Marking hole locations and preparation for drilling : 1.50 hours Drilling holes : 4.00 hours Loading explosive and blasting : 2.00 hours Defuming by leaving compressed air : 0.50 hours Mucking excavated rock : hours Total cycle of excavation per blast of 1.3 m depth : hours 7 Use rate of materials: Cost of drill rod 1.6 m Rs: / No. Rs:

12 Life of drill rod with reconditioning : 150 m Use rate of drill rod per Rm drilling ( cost / life ) Rs: Length of air and water hose assumed : 100 m each Cost of air hose 100 m Rs: / Rm Rs: Life of air hose : 800 hours Use rate of air hose per hour ( cost / life ) Rs: 15 Cost of water hose 100 m Rs: / Rm Rs: Life of water hose : 800 hours Use rate of water hose per hour ( cost / life ) Rs: Quantity of rails for haulage of tubs Haulage track outside : 2 x 150 m Weigth of 30R rails 300 m 30 kg / Rm : 9 tonnes Cost of 30 R rails 300 Rs: / tonne Rs: Add for 25% Rs: Total Rs: Less salvage 10% ( - ) Total Rs: Life of rails under tunnel working conditions : 15 years Use rate of rails per year ( cost / life ) Rs: Add for repairs & 10% Rs: Total Rs: Use rate of rails per shift considering 300 working days Rs: 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 Rs: / Rm Rs: Life of wire rope for lifting : 2500 hours Use rate of wire rope per hour ( cost / life ) Rs: 9.00 Weight of mucking bucket : 250 kg Cost of steel 75 Rs: / kg Rs: Cost of steel 25 Rs: / kg Rs: 1250 Cost of Rs: 8.00 / kg Rs: Total Rs: Add for hooks / door arrangements 20% Rs: 1550 Total Rs: Less salvage 10% ( - ) Total Rs: Add for repairs / maintenance 10% Rs: Total Rs: Life of mucking bucket assumed : 2500 hours Use rate of mucking bucket per hour ( cost / life ) Rs: RATE ANALYSIS UNIT : cum A. MATERIALS: Sl No Perticulars Unit Quantity Rate Amount 1 Small dia explosive kg Electric detonator Nos Detonating fuse coil Rm Use rate of drill rod 1.6 m long Rm Reconditioning 10% Use rate of air hose Hour Use rate of water hose Hour Use rate of rail track Shift Use rate of mucking bucket Hour Sundries( paint / template etc ) LS TOTAL Rs:

13 Add for small Tools and 1% Rs: Add for Contractor' 10% Rs: Add for Contrators' 5% Rs: Total cost of Materials Rs: B. MACHINERY: 1 Air compressor 15 cmm ( ele ) Hour Fuel / Energy charges Hour Jack hammer ( 4 x 4 hrs ) Hour Fuel / Energy charges Hour Pump 10 hp ( ele ) Hour Fuel / Energy charges Hour Pump 20 hp electric Hour Fuel / Energy charges Hour Winch 35 hp electric Hour Fuel / Energy charges Hour Tipping tub 1.5 cum Hour Fuel / Energy charges Hour Sundries(explosive van / magazine ) LS TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' Profit on DPOL/ 10% Rs: Add for Contrators' 5% Rs: Total hire charges of Machinery Rs: C. LABOUR: 1 Crew for Air compressor Hour Crew for Jack hammer Hour Crew for Pump 10 hp Hour Crew for Pump 20 hp Hour Crew for Winch Hour Surveyor Day Foreman Day Fitter / Mechanic Day Blaster ( Licensed ) Day Helper blasting Day Hammerman 1 No. in each shift Day Maistry 1 in each shift Day Khalasi for mucking 2 Nos in each shift Day Heavy mazdoor for mucking 8 Nos in each shift Day for other 2 shifts 1 No / shift Day Light mazdoor for cleaning & miscellaneous Day TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' 10% Rs: Add for hidden cost on 15% Rs:

14 Add for additional hidden cost on 10% Rs: Add for Contrators' 5% Rs: Total cost of Labour Rs: ABSTRACT: A. Cost of Materials Rs: B. Hire charges of Machinery Rs: C. Cost of Labour Rs: Total Rs: Add for Air and Water 1.00% Rs: Add for 0.00% Rs: 0.00 Add for 1.60% Rs: Add for Ele sub-station / Demand 5.00% Rs: Add for other Enabling 2.00% Rs: Total cost for cum Rs: Rate per cum Rs: SECTION: TUNNEL AND ALLIED WORKS. YEAR: ITEM No: 3 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 Pay-line margin assumed : 0.20 m Diameter of tunnel upto pay line for excavation : 5.50 m Distance of dump yard from face : within 500 m Haulage of excavated muck : By dumpers Concrete lining Excavated profile Pay line Minimum excavation line Finished tunnel line TYPICAL CROSS SECTION OF TUNNEL 4.50 m dia. 1 Checking alignment and marking hole locations : Deploy drilling jumbo for 1 hour for marking hole locations. 2 Drilling holes : Area of tunnel upto pay-line ( 0.5 x x 5.5 x 5.5 )+( 5.5 x 2.75 ) : 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 for tunnel upto 45 sqm and in the range of 2.0 to 2.5 per sqm of cross sectional area for tunnel exceeding 45 sqm. For rate analysis 2.5 holes per sqm of cross sectional area considered. 13

15 Number of holes for full face excavation : 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 drilling for 68 holes ( 68 x 2 x 1.10 ) : 150 m Average rate of drilling per hour per jack hammer : 6 m Deploy 4 jack hammers with pusher leg for drilling. say : 6.5 hours Deploy 1 air compressor 15 cmm for air supply to 4 jack hammers : 6.5 hours Deploy drilling jumbo for drilling : 6.5 hours Deploy 10 hp pump for water supply to drilling work. : 6.5 hours 3 Loading explosive and blasting : Depth of pull per blast for 2 m deep holes : 1.80 m Quantity of in-situ excavation per blast ( x 1.80 ) : 49 cum Quantity of explosive small dia per 1.00 kg per cum : 49 kg Quantity of explosive for under cuts secondary 10 % : 5 kg Total quantity of explosive per blast : 54 kg Quantity of delay detonators per blast : 68 Nos. Quantity of electric detonators for secondary blasting LS : 10 Nos. Detonating fuse coil LS : 50 Rm Deploy drilling jumbo for 1 hour for loading explosives. 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. This is equivalent to running 1 fan for 2 hrs. Consider 1 fan 20 hp for 2 hrs. 5 Mucking excavated rock : Quantity of muck to be removed per blast considering 50 % bulkage : 73 cum 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. 12 km / hr : 5 minutes Turning and unloading : 2 minutes Return trip to waiting point : 5 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 say : 45 minutes Quantity of muck disposal per hour / dumper : 6.00 cum Deploy 2 dumpers for conveying 12 cum per hour : : 6 hours Deploy convey mucker and labour force for loading : 6 hours 6 Overall cycle time : Checking alignment and marking hole locations : 2.00 hours Drilling holes : 6.50 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 : 5.50 hours Total cycle of excavation per blast of 1.8 m length : hours Deploy drilling jumbo for total 10 hours including time for movement. 7 Use rate of materials: Cost of drill rod 2.5 m Rs: / No. Rs: Life of drill rod with reconditioning : 150 m 14

16 Use rate of drill rod per Rm drilling ( cost / life ) Rs: Length of air and water hose assumed : 25 m each Cost of air hose 25 m Rs: / Rm Rs: Life of air hose : 800 hours Use rate of air hose per hour ( cost / life ) Rs: 3.75 Cost of water hose 25 m Rs: / Rm Rs: Life of water hose : 800 hours Use rate of water hose per hour ( cost / life ) Rs: 3.44 RATE ANALYSIS UNIT : cum A. MATERIALS: Sl No Perticulars Unit Quantity Rate Amount 1 Small dia explosive kg Delay detonators Nos Electric detonators Nos Detonating fuse coil Rm Use rate of drill rod 2.5 m long Rm Reconditioning 10% Use rate of air hose Hour Use rate of water hose Hour Sundries( paint / template etc ) LS TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' 10% Rs: Add for Contrators' 5% Rs: Total cost of Materials Rs: B. MACHINERY: 1 Drilling jumbo Hour Fuel / Energy charges Hour Air compressor 15 cmm ( ele ) Hour Fuel / Energy charges Hour Jack hammer ( 4 x 6.5 hrs ) Hour Fuel / Energy charges Hour Pusher leg Hour Fuel / Energy charges Hour Convey mucker Hour Fuel / Energy charges Hour Dumper ( 2 x 6 hrs ) Hour Fuel / Energy charges Hour Pump 10 hp ( ele ) Hour Fuel / Energy charges Hour Ventilation fans 20 hp Hour Fuel / Energy charges Hour Sundries(explosive van / magazine ) LS TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' Profit on DPOL/ 10% Rs: Add for Contrators' 5% Rs: Total hire charges of Machinery Rs:

17 C. LABOUR: 1 Crew for Drilling jumbo Hour Crew for Air compressor Hour Crew for Jack hammer Hour Crew for Convey mucker Hour Crew for Dumper Hour Crew for Pump Hour Crew for ventilation fans Hour Surveyor Day Foreman Day Fitter / Mechanic Day Blaster ( Licensed ) Day Helper blasting Day Hammerman Day Maistry 1 in each shift Day Khalasi for mucking shift 4 Nos Day Heavy mazdoor for mucking shift 8 Nos Day for other 2 shifts 1 No each shift Day Light mazdoor for cleaning & miscellaneous Day TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' 10% Rs: Add for hidden cost on 15% Rs: Add for additional hidden cost on 10% Rs: Add for Contrators' 5% Rs: Total cost of Labour Rs: ABSTRACT: A. Cost of Materials Rs: B. Hire charges of Machinery Rs: C. Cost of Labour Rs: Total Rs: Add for Air and Water 1.00% Rs: Add for 4.50% Rs: Add for 1.60% Rs: Add for Ele sub-station / Demand 5.00% Rs: Add for other Enabling 2.00% Rs: Total cost for cum Rs: Rate per cum Rs: SECTION: TUNNEL AND ALLIED WORKS. YEAR: ITEM No: 4 ITEM: Excavation for tunnel by tunnelling methods including excavation for supports in all types of soil / rock strata requiring supports ( excluding cost of providing supports ) including cost of all other materials, machinery, labour, scaling excavated surface, 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 16

18 Height of tunnel assumed ( finished section ) : 4.50 m Length of tunnel assumed : 1000 m Thickness of CC lining : 0.30 m Extra excavation for supports : 0.25 m Pay-line margin assumed : 0.20 m Diameter of tunnel upto pay line for excavation : 6.00 m Distance of dump yard from face : within 500 m Haulage of excavated muck : By dumpers 1 Checking alignment and marking hole locations : Deploy drilling jumbo for 1 hour for marking hole locations. 2 Drilling holes : Area of tunnel upto pay-line ( 0.5 x x 6 x 6 )+( 6 x 2.75 ) : 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 for tunnel upto 45 sqm and in the range of 2.0 to 2.5 per sqm of cross sectional area 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 : 77 Nos Assuming spacing of supports at 0.75 m the depth of pull is considered at 1.5 m. Depth of holes for 1.5 m pull : 1.7 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 drilling for 77 holes ( 77 x 1.7 x 1.10 ) : 144 m Average rate of drilling per hour per jack hammer : 6 m Deploy 4 jack hammers with pusher leg for drilling. : 6 hours Deploy 1 air compressor 15 cmm for air supply to 4 jack hammers : 6 hours Deploy drilling jumbo for drilling : 6 hours Deploy 10 hp pump for pumping water to storage tank. : 6 hours 3 Loading explosive and blasting : Depth of pull per blast for 1.7 m deep holes : 1.50 m Quantity of in-situ excavation per blast ( x 1.50 ) : 46 cum Quantity of explosive small dia per 0.8 kg per cum : 37 kg Quantity of explosive for secondary 10 % : 4 kg Total quantity of explosive : 41 kg Quantity of delay detonators per blast : 77 Nos. Quantity of electric detonators for secondary blasting LS : 10 Nos. Detonating fuse coil : 50 Rm Deploy drilling jumbo for 1 hour for loading explosives. 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. This is equivalent to running 1 fan for 2 hrs. Consider 1 fan 20 hp for 2 hrs. 5 Mucking excavated rock : Quantity of muck to be removed per blast considering 50 % bulkage : 69 cum Capacity of dumper per load : 5 cum Quantity of muck per load considered under tunnel working conditions : 4.5 cum Loading cycle time: Moving from 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 4.5 cum : 22 minutes Haulage cycle time: Running time from loading point to dump yard at av. 12 km / hr : 5 minutes Turning and unloading : 2 minutes Return trip to waiting point : 5 minutes Waiting time before spotting : 9 minutes 17

19 Cycle time for haulage per load of 4.5 cum : 21 minutes Round trip cycle time of dumper say : 45 minutes Quantity of muck disposal per hour / dumper : 6 cum Deploy 2 dumpers for conveying 12 cum per hour : : 6 hours Deploy convey mucker and labour force for loading : 6 hours 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, Jumbo movements, rock bolting, lighting etc say : 4.00 hours Erection of temperary / permanent supports : hours Total cycle of excavation & supporting /blast of 1.5 m length : hours Deploy drilling jumbo for 11 hours for various operations including time for movement. 7 Use rate of materials: Cost of drill rod 2.5 m Rs: / No. Rs: Life of drill rod with reconditioning : 150 m Use rate of drill rod per Rm drilling ( cost / life ) Rs: Length of air and water hose assumed : 25 m each Cost of air hose 25 m Rs: / Rm Rs: Life of air hose : 800 hours Use rate of air hose per hour ( cost / life ) Rs: 3.75 Cost of water hose 25 m Rs: / Rm Rs: Life of water hose : 800 hours Use rate of water hose per hour ( cost / life ) Rs: 3.44 RATE ANALYSIS UNIT : cum A. MATERIALS: Sl No Perticulars Unit Quantity Rate Amount 1 Small dia explosive kg Delay detonators Nos Electric detonators Nos Detonating fuse coil Rm Use rate of drill rod 2.5 m long Rm Reconditioning 10% Use rate of air hose Hour Use rate of water hose Hour Sundries( paint / template etc ) LS TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' 10% Rs: Add for Contrators' 5% Rs: Total cost of Materials Rs: B. MACHINERY: 1 Drilling jumbo Hour Fuel / Energy charges Hour Air compressor 15 cmm ( ele ) Hour Fuel / Energy charges Hour Jack hammer ( 4 x 6 hrs ) Hour Fuel / Energy charges Hour

20 4 Pusher leg Hour Fuel / Energy charges Hour Convey mucker Hour Fuel / Energy charges Hour Dumper ( 2 x 6 hrs ) Hour Fuel / Energy charges Hour Pump 10 hp ( ele ) Hour Fuel / Energy charges Hour Ventilation fans 20 hp Hour Fuel / Energy charges Hour Sundries(explosive van / magazine ) LS TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' Profit on DPOL/ 10% Rs: Add for Contrators' 5% Rs: Total hire charges of Machinery Rs: C. LABOUR: 1 Crew for Drilling jumbo Hour Crew for Air compressor Hour Crew for Jack hammer Hour Crew for Convey mucker Hour Crew for Dumper Hour Crew for Pump Hour Crew for ventilation fans Hour Surveyor Day Foreman Day Fitter / Mechanic Day Blaster ( Licensed ) Day Helper blasting Day Hammerman 2 Nos Day Maistry 1 in each shift Day Khalasi for mucking shift 4 Nos Day Heavy mazdoor for mucking shift 8 Nos Day for other 2 shifts 1 No each shift Day Light mazdoor for cleaning & miscellaneous Day TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' 10% Rs: Add for hidden cost on 15% Rs: Add for additional hidden cost on 10% Rs: Add for Contrators' 5% Rs: Total cost of Labour Rs: ABSTRACT: A. Cost of Materials Rs: B. Hire charges of Machinery Rs: C. Cost of Labour Rs: Total Rs:

21 Add for Air and Water 1.00% Rs: Add for 4.50% Rs: Add for 1.60% Rs: Add for Ele sub-station / Demand 5.00% Rs: Add for other Enabling 2.00% Rs: Total cost for cum Rs: Rate per cum Rs: SECTION: TUNNEL AND ALLIED WORKS. YEAR: ITEM No: 5 ITEM: Excavation for tunnel by heading and benching tunnelling methods including excavation for supports in all types of soil / rock strata requiring supports ( excluding cost of providing supports ) for roof before benching including cost of all other materials, machinery, labour, scaling excavated surface, ventilation, lighting, drainage removing and hauling 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 Extra excavation for supports : 0.25 m Pay-line margin assumed : 0.20 m Diameter of tunnel upto pay line for excavation : 6.00 m Distance of dump yard from face : within 500 m Haulage of excavated muck : By dumpers 1 Checking alignment and marking hole locations : Deploy drilling jumbo for 1 hour for marking hole locations. 2 Drilling holes : In case of tunnel where the height is more or where the chances of over excavation due to full face blasting is more the excavation will be generally carried out by heading and benching method. For week strata arch rib supports are to be erected before benching. Assuming spacing of arch supports at 0.75 m interval the effective depth of pull per blast is considered at 1.5 m. The depth of hole for 1.5 m pull is considered at 1.7 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. Pay line Heading portion Excavated profile Minimum Drill holes Benching portion excavation line TYPICAL CROSS SECTION OF TUNNEL FOR HEADING & BENCHING Heading portion : Area of excavation upto payline : sqm Depth of pull : 1.50 m No. of holes considering 2.5 holes / sqm : 35 Nos. Depth of drilling for 35 holes ( 35 x 1.7 x 1.1 ) : 65.5 m 20

22 Haunch portion on either side : Area of excavation upto payline : 2.60 sqm Depth of drilling : 1.70 m No. of holes considering 3 holes / sqm : 8 Nos Depth of drilling for 8 holes ( 8 x 1.7 x 1.1 ) : 15 m Benching portion : Area of excavation upto payline ( 6 x 2.75 ) : sqm No. of holes considering 2.5 holes / sqm : 41 Nos. Depth of drilling : 1.70 m Depth of drilling for 41 holes ( 41 x 1.7 x 1.1 ) : 76.5 m Total depth of drilling ( ) : 157 m Average rate of drilling per hour per jack hammer : 6 m Deploy 4 jack hammers with pusher leg for drilling. : 6.5 hours Deploy 1 air compressor 15 cmm for air supply to 4 jack hammers : 6.5 hours Deploy drilling jumbo for drilling : 6.5 hours Deploy 10 hp pump for pumping water to storage tank. : 6.5 hours 3 Loading explosive and blasting : Total area of excavation : sqm Depth of pull per blast for 1.7 m deep holes : 1.50 m Quantity of in-situ excavation per blast ( x 1.50 ) : 50 cum Quantity of explosive small dia per 0.8 kg per cum : 40 kg Quantity of explosive for secondary 10 % : 4 kg Total quantity of explosive : 44 kg Quantity of delay detonators per blast ( ) : 84 Nos. Quantity of electric detonators for secondary blasting LS : 10 Nos. Detonating fuse coil : 50 Rm Deploy drilling jumbo for loading explosives. ( ) : 2 hours 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. This is equivalent to running 1 fan for 2 hrs. However, since excavation is planned in stages 1 hour defuming after each of 3 blasts is considered adequate. 5 Mucking excavated rock : Quantity of muck to be removed per blast considering 50 % bulkage : 75 cum Capacityof dumper per load : 5 cum Quantity of muck per load considered under tunnel working conditions : 4.5 cum Loading cycle time: Moving from 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 4.5 cum : 22 minutes Haulage cycle time: Running time from loading point to dump yard at av. 12 km / hr : 5 minutes Turning and unloading : 2 minutes Return trip to waiting point : 5 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 say : 45 minutes Quantity of muck disposal per hour / dumper : 6 cum Deploy 2 dumpers for conveying 12 cum per hour : 6.5 hours Deploy convey mucker and labour force for loading : 6.5 hours 6 Overall cycle time : Checking alignment and marking hole locations : 2.00 hours Drilling holes : 6.50 hours Loading explosive and blasting : 2.50 hours 21

23 Defuming and scaling loose rock fragments : 3.00 hours Mucking excavated rock : 6.50 hours Bed cleaning, Jumbo movements, rock bolting, lighting etc say : 4.00 hours Erection of permanent supports : 7.50 hours Total cycle of excavation & supporting /blast of 1.5 m length : hours 7 Use rate of materials: Cost of drill rod 2.5 m Rs: / No. Rs: Life of drill rod with reconditioning : 150 m Use rate of drill rod per Rm drilling ( cost / life ) Rs: Length of air and water hose assumed : 25 m each Cost of air hose 25 m Rs: / Rm Rs: Life of air hose : 800 hours Use rate of air hose per hour ( cost / life ) Rs: 3.75 Cost of water hose 25 m Rs: / Rm Rs: Life of water hose : 800 hours Use rate of water hose per hour ( cost / life ) Rs: 3.44 RATE ANALYSIS UNIT : cum A. MATERIALS: Sl No Perticulars Unit Quantity Rate Amount 1 Small dia explosive kg Delay detonators Nos Electric detonator Nos Detonating fuse coil Rm Use rate of drill rod 2.5 m long Rm Reconditioning 10% Use rate of air hose Hour Use rate of water hose Hour Sundries( paint / template etc ) LS TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' 10% Rs: Add for Contrators' 5% Rs: Total cost of Materials Rs: B. MACHINERY: 1 Drilling jumbo Hour Fuel / Energy charges Hour Air compressor 15 cmm ( ele ) Hour Fuel / Energy charges Hour Jack hammer ( 4 x 6.5 hrs ) Hour Fuel / Energy charges Hour Pusher leg Hour Fuel / Energy charges Hour Convey mucker Hour Fuel / Energy charges Hour Dumper ( 2 x 6.5 hrs ) Hour Fuel / Energy charges Hour Pump 10 hp ( ele ) Hour Fuel / Energy charges Hour

24 8 Ventilation fans 20 hp Hour Fuel / Energy charges Hour Sundries(explosive van / magazine ) LS TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' Profit on DPOL/ 10% Rs: Add for Contrators' 5% Rs: Total hire charges of Machinery Rs: C. LABOUR: 1 Crew for Drilling jumbo Hour Crew for Air compressor Hour Crew for Jack hammer Hour Crew for Convey mucker Hour Crew for Dumper Hour Crew for Pump Hour Crew for Ventilation fan Hour Surveyor Day Foreman Day Fitter / Mechanic Day Blaster ( Licensed ) Day Helper blasting Day Hammerman 2 Nos Day Maistry 1 in each shift Day Khalasi for pushing muck in heading portion Day for mucking shift 4 Nos Day Heavy mazdoor for mucking shift 8 Nos Day for other 2 shifts 1 No each shift Day Light mazdoor for cleaning &miscellaneous Day TOTAL Rs: Add for small Tools and 1% Rs: Add for Contractor' 10% Rs: Add for hidden cost on 15% Rs: Add for additional hidden cost on 10% Rs: Add for Contrators' 5% Rs: Total cost of Labour Rs: ABSTRACT: A. Cost of Materials Rs: B. Hire charges of Machinery Rs: C. Cost of Labour Rs: Total Rs: Add for Air and Water 1.00% Rs: Add for 4.50% Rs: Add for 1.60% Rs: Add for Ele sub-station / Demand 5.00% Rs: Add for other Enabling 2.00% Rs: Total cost for cum Rs: Rate per cum Rs: