Visvesvaraya Jala Nigam Limited Tender

Dewatering tunnel by pumping out water collected by natural drainage inside tunnel including cost of all materials, machinery, labour,ventilation, lighting, drainage, providing sump and all other ancillary operations wherever necessary etc., complete with all leads and lifts and as directed by Engineer incharge of the work

Providing and laying insitu vibrated M-15 ( 28 days cube compressive strength not less than 15 N / Sqmm ) grade cement concrete using 40 mm down approved, clean, hard, graded aggregates for foundation filling including cost of all materials, machinery, labour, formwork, cleaning, batching, mixing, placing in position, levelling, vibrating, finishing, curing etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Providing and laying in-situ vibrated M-15 (28 days cube compressive strength not less than 10 N / sq mm) grade cement concrete using 40 mm down approved, clean, hard, graded aggregates crushed from tunnel excavated rock for filling and levelling over cuts in bed due to geological faults etc., including cost of all materials, machinery, labour, ventilation, lighting, drainage,cleaning bed, batching and mixing concrete, conveying upto placing point in agitator car, placing in position, levelling, compacting, finishing,curing and all other ancillary operations etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Providing & Fixing in position pre cast RCC lagging of M20 grade concrete over extrados of the support & backfilling the gap between the extrados, of the lagging and excavated adjoining periphery of the tunnel by the placing hand packed rubble from excavator. including cost of all materials, machinery, labour, ventilation, lighting, drainage,cleaning bed, batching and mixing concrete, conveying upto placing point in agitator car, placing in position, levelling, compacting, finishing,curing and all other ancillary operations, costs of all operations including placement of hand packed rubble and including all plant, from work and materials required for the work under this item as shown in the construction drawings and as per specification etc. complete with all lead and lifts and as per directed by the Engineer. (Excluding cost of reinforcement) For Pre-concrete/RCC Lagging/ Wedges

Providing and laying insitu vibrated M-25 ( 28 days cube compressive strength not less than 25 N / sq mm ) grade cement concrete using 20 mm down approved clean, hard, graded aggregates crushed from tunnel excavated rock for sides and arch linling including cost of all materials, machinery, labour, ventilation, lighting, drainage, formwork,rail mounted shuttering gantry, batching and mixing concrete, conveying upto placing point in agitator car, placing in position, levelling, vibrating, finishing, curing, and all other ancillary operations etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work. Note: Rubble stones and stone chips from tunnel ex cavation for crushing coarse aggregate shall be issued at dump yard at specified issue rates.

Providing 25 mm thick guniting to sides and arch of tunnel in CM 1:3 proportion by weight including cost of all materials, machinery, labour, ventilation, lighting, drainage and all other ancillary operations etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Providing and fixing 25 mm diameter steel rock bolts with resin bond cement capsule anchorage including cost of all materials, machinery, labour, ventilation, lighting, drainage, drilling 32 mm dia holes, threading one end of bolt for fixing nuts, inserting grout capsule, driving bolt, fixing 10 mm thick 200 x 200 mm size plate washers and nuts, tightening the nuts by torque wrench after hardening of cement grout, and all other ancillary operations etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Providing, fabricating and placing in position reinforcement steel bars for RCC works including cost of all materials, machinery, labour,cleaning, straightening, cutting, bending, hooking, lapping, welding wherever required, tying with 1.25 mm dia soft annealed steel wire, etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Providing, fabricating and fixing in position permanent structural steel supports as per details including cost of all materials, machinery,labour, cutting, bending, welding, grinding, ventilation, lighting, drainage and all other ancillary operations etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Providing, fabricating and placing in position steel reinforcement steel for tunnel RCC works including cost of all materials, machinery, labour, ventilation, lighting, drainage, cleaning, straightening, cutting, bending, hooking, lapping /welding joints wherever required, tying with 1.25 mm dia. soft annealed steel wire etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Drilling 35 mm diameter grout holes in concrete/ rock by percussion drilling using jack hammer or stooper drills as directed to specified depth for consolidation / contact grouting including cost of all materials, machinery, labour, ventilation, lighting, drainage, cleaning holes, and all other ancillary operations etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Grouting cement slurry in grout holes under specified pressure for consolidation / contact grouting including cost of all materials, labour, machinery, ventilation, lighting, drainage, redrilling wherever necessary, and other ancillary operations etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Consolidation grouting with neat cement grout mix of suitable consistency under specified grout pressure as directed in drilled holes by stage grouting method including cost of all materials, machinery, labour, redrilling if necessary etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Supply and placing of 150 x 150 x 6mm welded wire fabric of Fe 500 as reinforcement in primary lining & inner lining as per approved drawings & specification or as directed by Engineer. The rate shall include all labour, materials,cost of pins, hooks,lesd, lift, handling, wastage complete with contractor's own equipment for complete job.Data Rate etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Providing 40 mm thick shotcreting in layers to concrete / masonry surface in cement concrete 1 : 2 : 2 proportion by weight using 6 mm down clean, hard, graded aggregates including cost of all materials, machinery, labour, cleaning joints /surface, scaffolding wherever required, curing and all other ancillary operations etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Clearing thin jungle grouth (more than 50 % open space) including bushes upto 300 mm/ parthenium and other weeds including burning or disposing off the same with all lead and lifts, as directed etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Removing stumps, tree roots, roots of bamboo clusters etc., upto 1.5 m grith including excavation, stacking materials neatly and leveling the surface etc., with all lead and lifts, as dirested etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Providing and laying Hariyali or other approved quality turfing sods for slopes of earthen embankment over 20 mm thick fine sand backing including cost of all materials, machinery, labour, preparing surface,spreading and tamping sand, watering for 15 days etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Excavation in all kinds of soil including boulders upto 0.6m diameter (0.113 cum) for canal, seating of embankment, filter drains /catch water drains etc., and placing the excavated stuff neatly in dump area or for formation of service road / embankment as directed including cost of all materials, machinery, labour, dressing bed and sides to required level and profile etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Excavation in soft rock without blasting including boulders upto 0.6 m diameter ( 0.113 Cum ) for canals, seating of embankment, filter drain / catch water drains etc., and placing the excavated soft rock neatly in dump area or for formation of service road as directed including cost of all materials, machinery, labour, dressing bed and sides to required level and profile etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Excavation in soft rock requiring blasting including boulders above 0.6 m dia. 1.2 m dia. for canals, seating of embankment, filter drain/ catch water drains etc., and placing the excavated rock in dump area or for formation of service road as directed including cost of all materials, machinery, labour, dressing bed and sides to required level and profile etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Excavation in hard rock of all toughness including boulders above 0.6 m diameter (0.113 cum) for canals , cut-off trench of embankments, filter / catch water drains and other appurtenent structures by approved controlled blasting methods including control of vibrations by use of delay detonators and control of fly-rocks by muffling arrangements and adopting only jack hammers for drilling holes and minimising damage to side slopes of canal in water prism area by adopting any one or combination of line drilling / pre-splitting / smooth blasting techniq ues including cost of all materials, machinery, labour, placing ex cavated rock neatly in approved dump area as directed etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Providing casing embankment using semi-pervious soil / pervious soil collected in embankment area in heaps as part of disposal of excavated soil from canal in layer of 250 to 300 mm ( before compaction ) including cost of all materils, machinery, labour all other operation such as spreading soil in layer of specified thickness, sorting-out, breaking clods, leveling, sectioning edges/ sides, watering, compacting each layer to density control of not less than 95 percent or as stipulated by power roller etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Design, fabrication, supply, erection and commissioning of embedded parts consisting of liners for trash rack grooves ( for coarse and fine screens ) with all accessories for pump house intake structure including cost of all materials, machinery, labour, cutting, aligning, anchoring, welding, finishing, cleaning, applying one coat of zinc rich epoxy primer and four coats of cold applied coal tar epoxy paint etc., complete as per specifications and approved drawings with lead and all lifts for structural steel components and all leads and lifts including packing / forwarding charges for other materials etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.

Design, fabrication, supply, erection and commissioning of trash racks consisting of a number of panels of suitable height with vertical trash bars welded to structural steel frame at wider interval and provided with weld mesh frame for pump house intake structure including cost of all materials,machinery, labour, cutting, aligning, welding, finishing, cleaning, applying one coat of zinc rich epoxy primer and four coats cold applied coal tar epoxy paint etc., complete as per specifications and approved drawings withall lead and all lifts for structural steel components and all leads and lifts including packing / forwarding charges for other materials.. etc., complete with all lead and lifts and as directed by the Engineer-in-Charge of the work.