Drilling of Boreholes and Installation of Submersible Pumps at Madhusudanpur 7 Pit and Incline Colliery for Water Management and Domestic Supply

Item Description/ Heading

Part A Civil Work-Estimate for Sealing of Incline, Main shaft and Air shaft

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1 m above ground level and removal of rubbish up to a distance of 50 m outside the periphery of the area cleared.

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, for all lift, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. All kinds of soil.

Supplying and filling in plinth with sand under floors, including watering, ramming, consolidating and dressing complete.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size de rived from natural sources)

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fllets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement: 1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)

Centering and shuttering including strutting, propping etc. and removal of form for Suspended floors, roofs, landings, balconies and access platform

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. Cold twisted bars

12 mm cement plaster of mix : 1:6 (1 cement: 6 fine sand)

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:6 (1 cement : 6 coarse sand)

Structural steel work in single section, fixed with or without connecting plate, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Part B E&M Work-Estimate for Lifting and reclamation of all UG equipment’s from Madhusudhanpur UG to Surface

Dismantling and lifting of 03 no. of pump sets including pump, motor, bed-plate and associated electricals Unskilled- 08 hds X 6 M.S. +Semiskilled - 02 hds X 6 M.S.

Dismantling and lifting of power cables (Approx. 500m) Unskilled- 08 hds X 2 M.S. +Semiskilled - 02 hds X 2 M.S

Dimantling, loading and lifting of 02 no. of starters, 04 no. of switches and other misc items Unskilled- 08 hds X 4 M.S. +Semiskilled - 02 hds X 2 M.S

Dismantling of 6 inch M.S.pipeline and lifting (Approx. 300m) and shaft range (approx. 360m) Unskilled- 10 hds X 6 M.S. +Semiskilled - 02 hds X 8 M.S

Lifting up of shaft cable - 03 reels Unskilled- 08 hds X 6 M.S. +Semiskilled - 02 hds X 6 M.S

Lifting up of other misc . Items Unskilled- 08 hds X 3 M.S. +Semiskilled - 02 hds X 3 M.S

Part C -“Drilling of 3 (Three) nos. 500 mm dia ,120 mtr depth Vertical Borehole with supply and fixing 550 mm dia MS Casing and supply, installation of 2 Nos. Submersible Pump 38 LPS, 500 GPM, 120m Hd., 550 Volt with complete electrical & all accessories

Drilling 150 mm dia (0m – 30m)

Drilling NX size Non Coring (30m – 60m)

Drilling NX size Non Coring (60m – 90m)

Drilling NX size Non Coring (90m – 120m)

Drilling 24” dia in Alluvium (0m – 30m)

Drilling 20” dia B.H. in rock portion(30m – 60m )

Drilling 20” dia B.H. in rock portion(60m – 90m)

Drilling 20” dia B.H. in rock portion(90m – 120m)

Supply & Fixing PVC Casing

Supply of 6 mm thick 22” dia MS Pipe for casing

22 mm dia flexible steel core rope, Usha Martin Comp.

Supply of 6” MS flange for 20 nos. of pipe x 2 nos. of flange

Clit cutting for 20 nos. pipe @ 4 nos./ Pipe & welding = 80 Nos.

Cutting rubber belt for 20 nos. pipe @ 2 nos./ Pipe = 40 nos. rubber joint

Supply of nut & bolt for 20 nos. pipe @ 8 nos./ Pipe = 160 nos. nut bolt (M16 x 65 HT)

Making 6” clamp with hole 4 pairs, 3 pair at rest & 1 no. for lowering pipe

Supply of Submersible Pump 38 LPS, 500 GPM, 120 m Hd., 550 Volt with complete electrical & all accessories.

Supply of 150 mm M.S. Pipe

Lowering of Submersible pump with all fittings by 25 Ton Crane

Total impact of GST for the purpose of CTC

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