Installation of mechanical shuttering system for change over of primary to secondary MMV and vice versa of pit no 5 of CM Project at Nakrakonda Kumardihi B colliery under Bankola area.

Amount

Item Description/ Heading

Demolishing cement t concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix).

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :1:1 ½:3 (1 Cement: 1½ coarse sand (zone-lll) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).

Providing and laying in position specified grade of

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level.Thermo- Mechanically Treated bars of grade Fe-500D or more.

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in superstructure above plinth level up to floor V level in all shapes and sizes in :Cement mortar 1:4 (1cement: 4 coarse sand).

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Supplying and fixing rolling shutters of approved make, made of required size M.S. laths, interlocked together through their entire length and jointed together at the end by end locks, mounted on specially designed pipe shaft with brackets, side guides and arrangements for inside and outside locking with push and pull operation complete, Including the cost of providing and fixing necessary 27.5 cm long wire springs manufactured from high tensile steel wire of adequate strength conforming to IS: 4454 - part 1 and M.S. top cover of required thickness for rolling shutters.80x1.20 mm M.S. laths with 1.20 mm thick top cover.

Extra for providing mechanical device chain and crank operation for operating rolling shutters. Exceeding 10.00 sqm and upto 16.80 sam in the area

12 mm cement plaster of mix :1:4 (1 cement: 4 fine sand)

Painting with black anti-corosive bitumastic paint of approved brand and manufacture to give an even shade:Two or more coats on new work

Transportation and installation of 3.3KV, 260kW spare slip ring induction motor from Sarpi unit to Kumardihi-B colliery in secondary MMV of MMM make.

Making and installation of MMV motor coupling guard with jack shaft

Dismantling of 3.3kV, 260kW spare slip ring induction motor in secondary MMV of MMM make installed in Pit no.5

Machining of Jack shaft as per fitting size with jack pulley (jack pulley is loosed on the shaft)

Total impact of GST for the purpose of CTC

NANDI ENTERPRISE (BID ID -1119154)

SABIR CONSTRUCTION (BID ID -1119162)