TENDER DOCUMENT FOR MINE DEVELOPMENT OF NORTH SECTION OF MALANJKHAND COPPER MINE, MADHYA PRADESH, INDIA

Amount

North Ramp/Decline:

Excavation of declines beyond XX mRL (balance part of IVRCL contract ) to (-)60mRL in North of 5.5 m width x 5 m height of arch shape (height of sides 4m and centre 5m) at 1 in 7 gradient, with 300 mm deep, 300mm wide RCC (M 20 nominal) drain, water line (2” GI) with 1 inch audco plug valve at an Interval of 200m distance, hanger above 3.5 m height to avoid any accidental damage for laying pipes and cables on the drain side, light fittings of 70-90 W LED bulb at 6m. interval and manholes as per MMR 1961 including drilling, blasting, dewatering at any extent, muck removal and disposal at surface within a distance of 1.5 km radius from portal, ventilation, scaling down of loose rocks and ground support by resin grouted rock bolts of 2.4m long, 1.2m grid of 22mm torsteel with 150x150x6 mm bearing plate and 150 mm threaded tightened with nut in rows as per SSR and design approved by the engineer incharge.

RCC: Providing, transmitting, placing of nominal RCC of 300 mm thickness of M-25 grade nominal (in conformity with IS: 456) for miscellaneous excavations including providing, fixing, and removal of steel shuttering plates, staging, centering, cutting, bending, binding, fixing, welding including carriage of steel reinforcement, vibrating of concrete, inclusive of all labour, material, reinforcement steel, incidental charges etc. complete as per the drawing and direction of Engineer-in-charge

Conveyor Drives: Excavation of three nos. of conveyor drives at a gradient of 1 in 100 of 4.0m.(w)X3.0m.(H) towards the crusher from north, south & central crushers to surge bins near Production Shaft including drilling, blasting, muck removal and disposal at surface within a distance of 1.5 km radius from portal, RCC M 20 nominal drain of 300 mm x 300 mm (width x depth) for full length of drive, water line (2” GI) with 1 inch audco plug valve at an Interval of 200m distance, hanger above 2.5 m height to avoid any accidental damage for laying pipes and cablesc(hangers for cable and pipes will be on opposite side), light fittings of 70-90 W LED bulb at every 6 m interval, ventilation, scaling down of loose rocks and ground support by resin grouted rock bolts of 2.4m long, 1.2m grid of 22mm torsteel with 150x150x6 mm bearing plate and 150 mm threaded tightened with nut in rows as per SSR and design approved by the engineer incharge.

Main Drives: Excavation of main drives of 5.5 m wide x 4.0 m high) at various levels including drilling, blasting, muck removal, dewatering to any extent and disposal at surface within a distance of 1.5 km radius from portal/shaft top, ventilation, scaling down of loose rocks, RCC M 20 nominal drain of 300 mm x 300 mm (width x depth) for full length of drive, water line (2” GI) with 1 inch audco plug valve at an Interval of 200m distance, hanger above 3.0 m height to avoid any accidental damage for laying pipes and cables opposite to cross-cut, light fittings of 70-90 W LED bulb at every 6 m interval and manholes as per MMR 1961 and ground support by resin grouted rock bolts of 2.4m long, 1.2m grid of 22mm torsteel with 150x150x6 mm bearing plate and 150 mm threaded tightened with nut in rows as per SSR and design approved by the engineer incharge.

Drives/Crosscuts/Draw points: Excavation of extraction drives (165 mRL, 90 mRL, 15 mRL & -60 mRL), crosscuts and draw points of following sizes at different levels including drilling, blasting, muck removal, dewatering at any extent and disposal at surface within a distance of 1.5 km radius from portal/shaft top, ventilation, scaling down of loose rocks, proper drain for full length of drive, water line (2” GI) with1 inch audco plug valve at an Interval of 200m distance, manholes as per MMR 1961 and ground support by resin grouted rock bolts of 2.4m long, 1.2m spacing in a row and 1.2m spacing within two rows of rockbolts of 22mm torsteel with 150x150x6 mm bearing plate and 150 mm threaded tightened with nut as per SSR and design approved by the engineer incharge.

4.5 m wide X 4.0 m high

4.2 m wide X 4.0 m high

4. m wide X 3.5 m high

Excavation of an inclined drive (Gradient 1 in 15) of 5.5m (W)X 4 m.(H) from -60 mRL to connect with the shaft bottom of NVS.

Construction of 3m dia. raises max. 75m. height including drilling, blasting, muck removal and disposal at surface within a distance of 1.5 km radius from portal/shaft, ventilation, scaling down of loose rocks. Final dimension will be as per drawing / instruction from engineer incharge.

Ore Pass (1 raise to be made by connecting level to level interval of 60-70 m): Drop raising of circular unlined ore pass of 3.00 m diameter from level to level and connect them for smooth flow of ore including drilling, blasting, muck removal and disposal of muck at surface within a distance of 1.5 km radius from portal/shaft, ventilation, scaling down of loose rocks from main/intermediate levels to (-) 60 mRL as per approved drawing. The raise will be aligned along a common centre line. It is further clarified that there should not be devation of ore pass by +/- 5% by size .

Waste Pass (1 raise to be made by connecting level to level interval of 60-70 m):Drop raising of circular unlined ore pass of 3.00 m diameter from level to level and connect them for smooth flow of waste including drilling, blasting, muck removal and disposal of muck at surface within a distance of 1.5 km radius from portal/shaft, ventilation, scaling down of loose rocks from main/intermediate levels to (-) 60 mRL as per approved drawing. The raise will be aligned along a common centre line. It is further clarified that there should not be devation of waste pass by +/- 5% by size .

Fork Raises: Inclined fork raises of 3m x 3m of connecting ore/waste pass at main levels dipping at 60° to 70° of maximum length of 30 m each including drilling, blasting, muck removal and disposal of muck at surface within a distance of 1.5 km radius from portal/shaft, ventilation, scaling down of loose rock from main/intermediate levels to (-) 60 mRL as per approved drawing

Fabrication and installation of grizzly (3mx3m) of 800 mm mesh size as per approved design including cost of steel.

Large Excavations: Underground Excavations for Crusher Chamber (1 no of 2000 cum each.), substation (5 nos.of 300-600 cum each.), bins (ROM/waste and surge) 3 nos.of 1500 cum each, sump (2 nos of 1000-1500 cum each.), pump house (2 nos of 300-500 cum each),(Actual excavation as per approved drawing) ore/waste rock loading stations in each draw level etc. including drilling, blasting, muck removal, dewatering to any extent and disposal to surface, ventilation, scaling down of loose rock, as per design approved by the engineer incharge.

Excavation of decline of 4.0 m width x 3.5 m height 1 in 7 gradient from (-) 60 m RL to shaft bottom (-) 110 mRL, with 300 mm deep, 300mm wide RCC (M 20 nominal) drain, water line (2” GI) with 1 inch audco plug valve at an Interval of 200m distance, hanger at 3.5 m height to lay pipes and cables on drail side, light fittings at every 6 m interval and manholes as per MMR 1961 including drilling, blasting, muck removal, dewatering at any extent and disposal at surface within a distance of 1.5 km radius from portal, ventilation, scaling down of loose rocks and ground support by resin grouted rock bolts of 2.4m long, 1.2m spacing in a row and 1.2m spacing within two rows of rockbolts of 22mm torsteel with 150x150x6 mm bearing plate and 150 mm threaded tightened with nut in rows as per SSR and design approved by the engineer incharge.

Design and Engineering.

Design of ROM, Waste surge bin, crusher chamber, grizzly etc.

SMS LIMITED

DCS Limited

Maheshwari Mining Pvt. Ltd.

S K KHETAN INFRAPROJECTS PRIVATE LIMITED

AAC Mining Executors India Private Limited