Mining, Minerals & Quarrying Tender Results

Drilling 150mm dia Vertical Borewell to the required depth as directed by the departmental officers including labour charges inserting pipes assembly in the drilled pit including welding the joints wherever necessary and grouting the casing pipe if necessary in overburden soil etc., complete and including transportation charges for the rigs and supporting vehicles from one place to another etc., complete as directed by the Executive Engineer without casing pipe.

(2.2.1) Construction of Tube Well from ground level and upto 100 mtr. depth to accommodate housing and assembly pipe in all type of alluvium strata, unconsolidated formation such as pebbles, boulders etc. by percussion/ rotary drilling method as per IS:2800 Part 1: 1991 and IS:2800 Part II: 1979 (both amended upto date) and technical specifications for removal of overburden. The work includes the cost of lowering of casing pipe, but excludes the cost of casing pipe. Nominal bore 200 mm dia.

Labour for drilling a perfectly vertical bore holes of specified dia for a specified depth below ground level through consolidated and unconsolidated rock with down the hole hammer drilled rig as required to suit the site condition as per the direction of E.I.C. including use of own rig with its accessories, tools and plants and consumable etc. for lowering of 125mm dia consumable etc. for lowering if 125mm dia PVC/GI Pipes for housing filled with socket and with or without well screen as per the necessity for soft, medium, hard and boulder formation (GI/PVC) casing pipes it required to prevent collapse of overburden portion is to be provided by the contractor including lowering and withdrawing after completion of tubewell. (a) Drilling of 125mm dia bore.i) 0m to 40m

Rough stone dry packing in aprons and revetments to proper profile using hard broken granite stones of good quality of size not less than 0.0025cum quarried and transported from approved quarry, from weathered skin and any other deleterious materials including filling the interstices with all small stone and jallies etc. with cost of quarrying, conveyance, royality and all other taxes of all materials with all labour, T & P required for the work with all leads, lift, delifts labour welfare cess etc complete in all respect as per the specification and direction of the Engineer-in-Charge.

Labour for drilling a perfectly vertical bore hole of specified dia for a specified depth below ground level through consolidated and unconsolidated rock with down the hole hammer drilling rig or combination rig as required to suit the site condition as per the direction of the Engineer in charge including use of own rig with its accessories, tools and plant and consumables etc for lowering of 200mm/150mm dia G.I/P.V.C/M.S casing pipes for housing fitted with socket and with or without well screen as per the necessity for soft, medium, hard and boulder formation (G.I/ P.V.C/ M.S casing pipes if required to prevent collapse of overburden is to be provided by the contractor including lowering and withdrawing after completion of the tube well), 200mm dia to 400mm dia in overburden portion including packing of gravel supplied by the contractor for 400mm dia bore only

10000556 Labour for drilling a perfectly vertical bore hole of specified dia for a specified depth below ground level through consolidated and unconsolidated rock with down the hole hammer drilling rigs or combination drilling rigs (1200cfm/300psi) as required to suit the site condition as per the direction of Engineer-in-charge including use of own rigs with its accessories,tools and plant and consumables etc for lowering of 200mm dia PVC pipes for housing fitted with socket and with or without well screen as per tenecessity for soft,medium,hard and boulder formation (PVC casing pipes if required to prevent collapse of overburden is to be provided by the contractor including lowering and with drawing after completion of the tube well).(Icluding both LABOUR FOR DRILLING 200MM DIA UPTO 30 MTR. & LABOUR FOR DRILLING 150MM DIA FROM 30 MTR TO 150 MTR including all.) CONSIDER FOR 150 MTR DEPTH. Ground Floor