NHPC Limited Tender

Construction of 125 mm dia DTH/ODEx test bore wells 90 meter deep along with MS casing for detection of feasible site for ground water in the Colony premises for construction of production tube well at Kishanganga Power Station, Kralpora, Bandipora. For Ist test bore- Shifting of all machíney at site, carriage, loading and un loading oł accessories required for complete work, The job shall include all logistic support in iems of men, machiney and stores at site. The charges on account of Ioading/ unloading, shifling of men & machinery arranged, clearing of debris at site if needed, leveìing of ground required for smooth work, Haltage charges of the transport aranged for shifting of skilled and unskilled labors, men and machinery tools and tackles up to site of work. Dilling/Boring of 125 mm diameter tube well by air rotary drilling rig unit suitable for lowering of MS casing of 125mm diameter in suiiably drilled bore hole as per specifications laid down in IS 2800 (Part-I) with up to date amendments The job is to be done in all kinds of soils, boulder, rocks, collapsible strata saturated soils, artisan conditions by DTH/ODEX attachments and exploration of ground water by tapping sufficient aquifer zones. The job includes the cost of drilling accessories, tools, bits, casing shoe, consmables like fuel, lubricants, skilled and unskilled labours and other unforeseen items. Development of tube well with backwash method with air compressor of miuimm capacity 1000 CFM (300 PSI air delivery system) with suitable arrangements till well is thoroughly doveloped in all respects as per directions of site engineer.

For Ist test bore- Supply, Providing, Fitting, assembling and Lowering in vertical position in above drilled bore of mild Steel plain and beveled ended l25mm dia. (CIass B) Casing pipes and subsequent lowering of casing assembly and its welding after every 10 feet, up to the drilled/desired depth. The whole casing pipe is incluive of slotted pipe, which is to be used as per the site requirement and as directed by site engìneer. The pipe shall be lowered up to te desired level BGL. The average length of each pipe shall not exceed 3.00 Mts. The welding electrodes used for welding the pipe shall confim to relevant IS codes. The specifications of the tube well shall be as under: As per IS 4270 : 2001

Construction of 125 mm dia DTH/ODEx test bore wells 90 meter deep along with MS casing for detection of feasible site for ground water in the Colony premises for construction of production tube well at Kishanganga Power Station, Kralpora, Bandipora. For 2nd test bore- Shifting of all machíney at site, carriage, loading and un loading oł accessories required for complete work, The job shall include all logistic support in iems of men, machiney and stores at site. The charges on account of Ioading/ unloading, shifling of men & machinery arranged, clearing of debris at site if needed, leveìing of ground required for smooth work, Haltage charges of the transport aranged for shifting of skilled and unskilled labors, men and machinery tools and tackles up to site of work. Dilling/Boring of 125 mm diameter tube well by air rotary drilling rig unit suitable for lowering of MS casing of 125mm diameter in suiiably drilled bore hole as per specifications laid down in IS 2800 (Part-I) with up to date amendments The job is to be done in all kinds of soils, boulder, rocks, collapsible strata saturated soils, artisan conditions by DTH/ODEX attachments and exploration of ground water by tapping sufficient aquifer zones. The job includes the cost of drilling accessories, tools, bits, casing shoe, consmables like fuel, lubricants, skilled and unskilled labours and other unforeseen items. Development of tube well with backwash method with air compressor of miuimm capacity 1000 CFM (300 PSI air delivery system) with suitable arrangements till well is thoroughly doveloped in all respects as per directions of site engineer.