DEVELOPMENT, OPERATION AND MAINTENANCE OF KENDADIH MINE, JHARKHAND, INDIA

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A(1). Stope Ore Production: Production of ore from Room & Pillar stoping method (or by Horizontal Cut & Fill stoping method where orebody width more than 4 meters) and stope raise including drilling, blasting, scrapping the blasted ore into the wooden/steel chute , loading into the minecar/tub , tramming through battery locomotive, dumping into grizzly, hoisting and discharge to surface ore bin & disposal of the ore/rock to a maximum distance of 500m radius from shaft top/adit . Loose dressing & supporting of roof/back with resin rock bolts as per approved systematic support rules by DGMS. It also includes pipe fitting, drainage system, continuous pumping & dewatering, ore sampling, grade analysis, strata monitoring, extension of pipe line, installation of auxiliary ventilation fans, extension of ducting for ventilation, illumination, track laying & fittings, compressed air and water pipe line as and wherever required and erection of any additional support as and when required complete in all respect include all supplies as directed by the Engineer-in-Charge or his authorized representative. (Cu Grade % : 0.50% and above, Each & every equipment required for mining operation shall be under the scope of Bidder. Transportation of Ore from Kendadih Mine to Mosaboni Plant. Stope void filling including construction of a wall with decantation pipe at the mouth of the stope openings. Transportation of Classified mill tailings from Mosabani plant to Mine surface bunker and disposed through boreholes and or pipes to the stope voids by mixing the tailing with water including all supplies.

B(1). Deepening of 480mNwinze: Design & deepening of 3.0 m x 2.8 m finished size 480mN Winze following the H/W contact of the ore body at about 25 to 36 inclination from 6th L (below 35m from 6L) to 10th level (below 35m) under all the conditions including sludge cleaning, drilling, blasting, muck removal , hoist to surface and dispose to a maximum distance 500m radius from shaft top/adit and transportation of muck from Kendadih Mines to Mosaboni plant, resin rock bolting, excavation of manholes as per MMR 1961, pumping of water to any extent, ventilation, scaling of loose rock as per approved design submitted by bidder.

B(2). Deepening of 480mNwinze: Shaft equipping : Single track (two rail lines) laying of 30lbs rails on steel (rail 60lbs) sleepers placed at 1.5m interval (as per existing system) ,leveling, aligning , fixing of fish plates, wooden packing or sleepers (between rail and bunton) , Gyrex rollers mounted on floor at 5m interval, tongue sleepers, light fittings at 6m interval, ladderway, fencing of ladderway compartment with 3set of 1inch GI pipe mounted on vertical post of " pipe/50mm angle, solar at 15m interval including supply of materials as per approved design submitted by bidder.

B(3). Deepening of 480mNwinze: Construction of Shaft Platt: Shaft Platt (4 no.) at 7th, 8th, 9th & 10th level for 5 metre from the edge of the shaft of 6 metre wide x 3.5 metre height including drilling, blasting, muck removal hoist to surface and dispose to a maximum distance 500m radius from shaft top/adit, ventilation, scaling down of loose rock as per approved design submitted by bidder.

B(4). Deepening of 480mNwinze: Construction of 50T bin at 7th, 8th, 9th & 10th Level with grizzly and steel chute below the bin for loading skip. This job includes excavation of bin, drilling, blasting, muck removal hoist to surface and dispose to a maximum distance 500m radius from shaft top/adit, ventilation, scaling down of loose rock and supply, fabrication , erection of steel for grizzly and chute as per approved design submitted by bidder.

B(5). Deepening of 480mNwinze: Supply, Fabrication & Erection: Procure, fabricate and Erection of steel structure of any size and section in shaft as per approved drawing submitted by bidder.

C(1). Deepening of 550mN Incline Shaft: Design & deepening by pilot raising of size 2.4 m x 1.8 m (or suitable size) and then widening and heightening to 5.5 m(W) x 2.8m (H) unlined size 550mN incline shaft 320 inclination from 46m below 5th level to 10th level (including 40 m deepening below 10th L) ,under all the conditions including spillage/sludge cleaning, drilling, blasting, muck removal and disposal to void stopes if available otherwise hoist to surface to a maximum distance 500m radius from shaft top/adit, resin rock bolting, excavation of manholes as per MMR 1961, pumping of water to any extent, ventilation, scaling of loose rock as per approved design submitted by bidder.

C(2). Deepening of 550mN Incline Shaft: Shaft lining RCC M-25 : Providing, transmitting, placing of RCC M-25 grade at 550mN inline shaft and plat from 5th Level to 10th level in sides, floor and roof including providing, fixing, and removal of steel shuttering plates, staging, centering, cutting, bending, binding, fixing, welding including carriage of steel reinforcement of suitable dia @ 80 to 100kg/m3 of concrete, vibrating of concrete, fixing of insert plates and dowel bars as directed inclusive of all labour, material incidental charges, placing of 6olbs rail at 1.5m interval in three sides etc. complete as per the approved drawing and direction of Engineer-in-charge including cost of reinforcement steel, rail and cement.

C(3). Deepening of 550mN Incline Shaft: Shaft equipping : Double track (four rail line) laying of 60lbs rails on steel (rail) sleepers placed at 1.5m interval (as per existing system) ,leveling, aligning , fixing of fish plates, wooden packing or sleepers (between rail and sleeper) , Gyrex rollers mounted on floor at 5m interval, tongue sleepers, fixing of ISMC 150 for vertical posts at 1.5m interval, light fittings at 6m interval, concrete ladderway, fencing of ladderway compartment with 3set of 1inch GI pipe mounted on vertical post solar at 15m interval, hangers for cable laying at 3 m interval including all supplies as per approved design submitted by bidder.

C(4). Deepening of 550mN Incline Shaft: Construction of Shaft Plat: Shaft Plat (5 no.) from 6th to 10th level for 10 meter from the edge of the shaft of 10 meter wide x 5 meter height including drilling, blasting, muck removal, resin rock bolting and disposal to void stopes if available otherwise hoist to surface and dispose to a maximum distance 500m radius from shaft top/adit, ventilation, scaling down of loose rock as per approved design submitted by bidder.

C(5). Deepening of 550mN Incline Shaft: Construction of 200 T ore bin at 6L,7L,8L,9L and 10L with grizzely along with skip loading chute, rock bolting , bell signaling system with phone. The job includes drilling blasting, mucking and disposal to void stopes if available otherwise hoist to surface to a maximum distance 500m radius from shaft top/adit, ventilation, scaling of loose rock as per the approved drawing submitted by bidder and direction of Engineer-in-charge.

C(6). Deepening of 550mN Incline Shaft: Design & Construction of spillage raises of 4sq.m area with chutes to collect the spillage out of hoisting at 6L,7L,8L,9L,10L to load into side tipping mine car.

C(7). Deepening of 550mN Incline Shaft: Supply, Fabrication & Erection: Supply, Fabricate, lower, install steel structure of various sizes and sections in the shaft for platform, spillage chute at 6L,7L,8L,9L,10L as per approved drawing submitted by bidder.

C(8)(i). Deepening of 550mN Incline Shaft: Procurement and Installation of pipe lines as per approved drawing from 5th L to 10th L at a height of 2 meter in one side of drive including minimum two supports of each 6 meter long pipe by eye hook duly grouted on side wall and suspension of pipe by wire rope with steel clamp of suitable size for 8” MS Flanged pipe with corrosion proof paint.

C(8)(ii). Deepening of 550mN Incline Shaft: Procurement and Installation of pipe lines as per approved drawing from 5th L to 10th L at a height of 2 meter in one side of drive including minimum two supports of each 6 meter long pipe by eye hook duly grouted on side wall and suspension of pipe by wire rope with steel clamp of suitable size for Drilling pipe 63 mm dia HDPE pipe.

C(8)(iii). Deepening of 550mN Incline Shaft: Procurement and Installation of pipe lines as per approved drawing from 5th L to 10th L at a height of 2 meter in one side of drive including minimum two supports of each 6 meter long pipe by eye hook duly grouted on side wall and suspension of pipe by wire rope with steel clamp of suitable size for GI flanged pipe (1") of B class.

D(1). Deepening of 780mN Winze: Design & deepening of 4.3 m x 2.2 m finished size of 780mN Winze at about 35 to 37 inclination from 5th L to 10th level (below 35m) by suitable method either winzing or pilot raising under all the conditions including sludge cleaning, drilling, blasting, muck removal , hoist to surface and dispose to a maximum distance 500m radius from shaft top/adit ,resin rock bolting, excavation of manholes as per MMR 1961, pumping of water to any extent, ventilation, scaling of loose rock as per approved design submitted by bidder.

D(2). Deepening of 780mN Winze: Shaft equipping : Single track (two rail lines) laying of 60lbs rails on steel (rail 60lbs) sleepers placed at 1.5m interval (as per existing system) ,leveling, aligning , fixing of fish plates, wooden packing or sleepers (between rail and bunton), Gyrex rollers ( mounted on floor at 5m interval, tongue sleepers, light fittings at 6m interval, ladderway, fencing of ladderway compartment with 3set of 1inch GI pipe mounted on vertical post of " pipe/50mm angle, solar at 15m interval including supply of materials as per approved design submitted by bidder.

D(3). Deepening of 780mN Winze: Construction of Shaft Platt: Shaft Platt (6no.) at 5th, 6th , 7th, 8th,9th & 10th level for 5 metre from the edge of the shaft of 6 metre wide x 3.5 metre height including drilling, blasting, resin rock bolting ,muck removal hoist to surface and dispose to a maximum distance 500m radius from shaft top/adit, ventilation, scaling down of loose rock as per approved design submitted by bidder.

D(4). Deepening of 780mN Winze: Construction of 50T bin at 5th, 6th , 7th, 8th,9th & 10th Level with grizzly and steel chute below the bin for loading skip. This job includes excavation of bin, drilling, blasting, muck removal hoist to surface and dispose to a maximum distance 500m radius from shaft top/adit, ventilation, scaling down of loose rock and supply, fabrication , erection of steel for grizzly and chute as per approved design submitted by bidder.

D(5). Deepening of 780mN Winze: Supply, Fabrication & Erection: Procure, fabricate and Erection of steel structure of any size and section in shaft as per approved drawing submitted by bidder.

D(6)(i). Deepening of 780mN Winze: Procurement and Installation of pipe lines as per approved drawing from 5th L to 10th L at a height of 2 meter in one side of drive including minimum two supports of each 6 meter long pipe by eye hook duly grouted on side wall and suspension of pipe by wire rope with steel clamp of suitable size for Size 4” MS Flanged pipe with corrosion proof paint.

D(6)(ii). Deepening of 780mN Winze: Procurement and Installation of pipe lines as per approved drawing from 5th L to 10th L at a height of 2 meter in one side of drive including minimum two supports of each 6 meter long pipe by eye hook duly grouted on side wall and suspension of pipe by wire rope with steel clamp of suitable size for Drilling pipe 63 mm dia HDPE pipe.

D(6)(iii). Deepening of 780mN Winze: Procurement and Installation of pipe lines as per approved drawing from 5th L to 10th L at a height of 2 meter in one side of drive including minimum two supports of each 6 meter long pipe by eye hook duly grouted on side wall and suspension of pipe by wire rope with steel clamp of suitable size for GI flanged pipe (1") of B class.

E(1). Underground Mine Development and Other Excavations: Design & excavation for ore drive (horizontal) 3m wide x 2.4 m high at 1st , 2nd , 3rd , 4th and 5th levels including drilling, blasting, muck removal and dispose to a maximum distance 500m radius from shaft top/adit and transportation of muck from Kendadih Mines to Mosaboni plant, ventilation, pumping & dewatering, scaling down of loose rocks, channel/groove sample cutting in drive at 5m interval, Cu % grade analysis and resin rock bolting (at 1.5m x 1.5m grid of 20 mm tor-steel of 1.5 m length)with bearing plate of 150x 150 mm square and 8 mm thickness having 150 mm threaded with hexagonal nut as per SSR duly approved by DGMS from time to time, drain cutting of 300mm x 300mm at one side floor of drive as per approved drawing submitted by bidder.

E(2). Underground Mine Development and Other Excavations: Design & excavation for ore drive (horizontal) 3m wide x 2.4 m high at 6th , 7th, 8th,9th and 10th levels including drilling, blasting, muck removal and dispose to a maximum distance 500m radius from shaft top/adit and transportation of muck from Kendadih Mines to Mosaboni plant, ventilation, pumping & dewatering, scaling down of loose rocks, channel/groove sample cutting in drive at 5m interval, Cu % grade analysis and resin rock bolting (at 1.5m x 1.5m grid of 20 mm tor-steel of 1.5 m length)with bearing plate of 150x 150 mm square and 8 mm thickness having 150 mm threaded with hexagonal nut as per SSR duly approved by DGMS from time to time, drain cutting of 300mm x 300mm at one side floor of drive as per approved drawing submitted by bidder.

E(3). Underground Mine Development and Other Excavations: Design & excavation in waste drive/X-cut (horizontal) of size 3m wide x 2.4 m high at 6th , 7th, 8th,9th and 10th levels including drilling, blasting, muck removal and disposal to void stopes if available otherwise hoist to surface to a maximum distance 500m radius from shaft top/adit, ventilation, pumping & dewatering, scaling down of loose rocks, channel/groove sample cutting in drive at 5m interval, Cu % grade analysis and resin rock bolting (at 1.5m x 1.5m grid of 20 mm tor-steel of 1.5 m length)with bearing plat of 150x 150 mm square and 8 mm thickness having 150 mm threaded with hexagonal nut as per SSR duly approved by DGMS from time to time, drain cutting of 300mm x 300mm at one side floor of drive as per approved drawing submitted by bidder.

E(4). Underground Mine Development and Other Excavations: Design & excavation of ventilation raises to a size of 4 sq.m, approx. 65m long, at 6th , 7th, 8th,9th and 10th levels at 120m parting from each raise including drilling, blasting, muck removal and dispose to a maximum distance 500m radius from shaft top/adit and transportation of muck from Kendadih Mines to Mosaboni plant, ventilation, scaling down of loose rocks, channel/groove sample cutting in drive at 5m interval, Cu % grade analysis and resin rock bolting (at 1.2m x 1.2m grid of 20 mm tor steel of 1.5 m length) with bearing plat of 150x 150 mm square and 8 mm thickness having 150 mm threaded with hexagonal nut as per SSR duly approved by DGMS from time to time

E(5). Underground Mine Development and Other Excavations: Underground diamond drilling, logging , sampling & analysis ( Cu%) of AX Size (1 3/8”) coring of maximum length of 60 meter in any direction.

E(6). Underground Mine Development and Other Excavations: Design & excavation for diamond drill machine X-cut (horizontal) of size 3m wide x 2.4 m high at various levels including drilling, blasting, muck removal and hoist to surface to a maximum distance 500m radius from shaft top/adit and transportation of muck from Kendadih Mines to Mosaboni plant, ventilation, pumping & dewatering, scaling down of loose rocks, resin rock bolting (at 1.5m x 1.5m grid of 20 mm tor-steel of 1.5 m length)with bearing plate of 150x 150 mm square and 8 mm thickness having 150 mm threaded with hexagonal nut as per SSR duly approved by DGMS from time to time, as per approved drawing submitted by bidder.

E(7). Underground Mine Development and Other Excavations: Construction of manholes in underground at various levels as per MMR 1961 as per approved drawing submitted by bidder including drilling, blasting, muck removal and hoist to surface to a maximum distance 500m radius from shaft top/adit and transportation of muck from Kendadih Mines to Mosaboni plant, ventilation, pumping & dewatering, scaling down of loose rocks, resin rock bolting (at 1.5m x 1.5m grid of 20 mm tor-steel of 1.5 m length)with bearing plate of 150x 150 mm square and 8 mm thickness having 150 mm threaded with hexagonal nut as per SSR duly approved by DGMS from time to time.

E(8). Underground Mine Development and Other Excavations: Design & Excavation of Pump sump of 2000 cum at 6th L including drilling, blasting, muck removal and disposal to void stopes if available otherwise hoist to surface to a maximum distance 500m radius from shaft top/adit, ventilation, pumping & dewatering, scaling down of loose rocks, resin rock bolting .

E(9). Underground Mine Development and Other Excavations: Design & Excavation of Pump sump of 500 cum at 9th L including drilling, blasting, muck removal and disposal to void stopes if available otherwise hoist to surface to a maximum distance 500 m radius from shaft top/adit, ventilation, pumping & dewatering, scaling down of loose rocks, resin rock bolting .

E(10). Underground Mine Development and Other Excavations: Miscellaneous excavation at from 1st level to 10th level including drilling, blasting, muck removal and disposal to void stopes if available otherwise hoist to surface to a maximum distance 500m radius from shaft top/adit, ventilation, pumping & dewatering, scaling down of loose rocks and resin rock bolting (at 1.5m x 1.5m grid of 20 mm tor-steel of 1.5 m length)with bearing plat of 150x 150 mm square and 8 mm thickness having 150 mm threaded with hexagonal nut, drain cutting of 300mm x 300mm at one side floor of drive wherever required as per approved drawing submitted by bidder.

F(1). Supply of items, installation and commissioning: Supply and laying of 30 lbs track at various u/g levels on wooden sleepers with proper fish plates, nut & bolts with rail sidings placed at 1m interval at 2' gauge with rail crossing including supply of rail and all accessories as per approved drawing submitted by bidder as per SSR duly approved by DGMS from time to time.

F(2). Supply of items, installation and commissioning: Supply and Installation of light fittings in main haulage levels at 6m interval including lighting cable, transformer etc. at every working/development/production area as and where required as per CEAR Act.

F(3). Supply of items, installation and commissioning: Supply, installation and commissioning of electric centrifugal pump (2nos) with all electrical accessories like switchgears (ACBs) , cables, soft starters as per CEAR Act (The electrical equipments must be of reputed makes only like ABB, Siemens, Crompton Greaves, Schneider and laying of 6 inch NB delivery water line with flanges and non-return valves etc from 6th L to Surface tank with a head of 300 m, capacity : 55m3/hr . The job includes pump bed, concrete for foundation, procuring and installation of all items. (Power is available at 5th level substation two run of 150 meter 300 sq.mm. 3 core double armored mine type power Aluminum cable with appropriate switchgears may be used for the purpose)

F(4). Supply of items, installation and commissioning: Supply, installation and commissioning of electric centrifugal pump (2nos) with all electrical accessories like switchgears, transformers, cables, starters as per CEAR act (The electrical equipments must be of reputed makes only like ABB, Siemens, Crompton Greaves, Schneider, and laying of 4 inch NB delivery water line with flanges and non-return valves etc from 9th L to 6th L pump sump with a head of 150 m, capacity: 30 m3/hr. The job includes pump bed, concrete for foundation, procuring and installation of all items. (Power must be taken from 9th L substation which is to be design supply installation & commissioning by the bidder first before Installation of 2 nos said centrifugal pumps at 9th Level )

F(5). Supply of items, installation and commissioning: Electrical Sub-substation at 9L of 3.3 KV – The LT supply having fifteen terminal points at 6th, 7th, 8th, 9th and 10th Level with other auxiliary devices for safety and protection of circuit with metering arrangement and outgoing cables. The Scope of work consists of design supply installation & commissioning of 2 nos of Mining type 315 KVA 3.3 KV/415 V transformers directly charged from surface 3.3 KV Overhead line through a proper rated 3.3 KV VCB near 550 mN winder room and an approximately 1.0 KM long 3.3 KV double armored mining type power cable. Both the transformers will finally charged through a 3.3 KV 800 Amp. VCB and two nos 3.3 KV VCB panel at 9th Level. The LT side of the transformers must be connected to 415 Volt, 50 Hz, 3 phase & 3 wire Power Distribution panel consists of two no’s incomers and a bus coupler each of 800 A ACB. Proper rated NGR for both the transformers etc. (The electrical equipments must be of reputed makes only like Areva, ABB, Siemens, Crompton Greaves, Larson & Toubro, Jyoti Electrical, Schneider, Marathon Electrical) {N.B. There must be a provision to charge the 9th level substation through 3.3 KV cable from 5th level substation incase power failure from surface.} {N.B. The substation at 9th level must be designed as a substation presently working at 5th level Substation only the difference will be the incoming supply. The I/C supply of 9th Level substation will be separately from a 3.3 KV Vacuum Circuit Breaker near 550 mN winder room }

F(6). Supply of items, installation and commissioning: Design, Procure, install, erection, commissioning of single drum winder for man cum ore hoist in 780mN Winze including foundation, wire ropes including spare rope, sheaves, skips/cage, rope attachment with skip, rollers, signaling system with shaft interlocking, cables, switchgears, and other electrical appliances, safety signaling devices and other required components for shafts and performance test of all items. Sourced from reputed manufactures, who have supplied minimum 20 hoists/winders of same or higher capacity and electrical/ electronic/ instrument/ automation/ control from ABB/ Siemens/ Schneider/ Allen Bradely/ Winder control (South Africa) make only, with complete, instrumentation and control for services with complete, instrumentation and control for ore hoisting. The hoist/winder should be capable of hoisting 20tph from an ultimate inclined depth of 650m to be used in Incline. All supplied materials shall be in conformity with DGMS requirements. Bidder has also to submit a)control and schematic drawing of winder and related electrical installation b) Methodology/write up for logic for winder operation that includes braking system contrivances, automatic contrivances, speed control, speed recorder etc. c) functional block or ladder logic diagram d) original software with PLC license with PLC programming backup e) test certificate of all electrical installation of winder

F(7)(i). Supply of items, installation and commissioning: Procurement, and installation of pipe lines as per approved drawing at various development headings/ shaft / winzes at a height of 2 meter in one side of drive including minimum two supports of each 6 meter long pipe by eye hook duly grouted on side wall and suspension of pipe by wire rope with steel clamp of suitable size for Size 6" MS HDPE flanged pipe with reducer & valve.

F(7)(ii). Supply of items, installation and commissioning: Procurement, and installation of pipe lines as per approved drawing at various development headings/ shaft / winzes at a height of 2 meter in one side of drive including minimum two supports of each 6 meter long pipe by eye hook duly grouted on side wall and suspension of pipe by wire rope with steel clamp of suitable size for Size 4” GI pipe with reducer & valve, coated with corrosion proof paint.

F(7)(iii). Supply of items, installation and commissioning: Procurement, and installation of pipe lines as per approved drawing at various development headings/ shaft / winzes at a height of 2 meter in one side of drive including minimum two supports of each 6 meter long pipe by eye hook duly grouted on side wall and suspension of pipe by wire rope with steel clamp of suitable size for Drilling pipe 63 mm dia HDPE pipe.

F(7)(iv). Supply of items, installation and commissioning: Procurement, and installation of pipe lines as per approved drawing at various development headings/ shaft / winzes at a height of 2 meter in one side of drive including minimum two supports of each 6 meter long pipe by eye hook duly grouted on side wall and suspension of pipe by wire rope with steel clamp of suitable size for Drinking pipe 1" dia GI pipe.

CHETAK ENTERPRISES LIMITED (BID ID -870403)

Maheshwari Mining Pvt. Ltd. (BID ID -860715)