3. Providing Laying Jointing Testing of Rising Main 100mm Dia for stage 2nd

Amount

Excavation in foundations,trenches etc in earth work in all kind of soil, such as pick work, jumper work, blasting hard or soft rock by chiselling where the blasting work is prohibited slushy daldal and saturated soil including pumping or bailing out water with in all heights, stacking the excavated soil within all leads clear from the edge of excavation and then returning the stacked soil in 15cm (fifteen centimetres) layers, when required into plinths, of foundations etc consolidating each deposited layer by ramming and watering and then disposing of all surplus excavated earth, as per the direction of Engineer-in-Charge with in all leads and lifts.

Laying, jointing & testing of GMS (plan ended pipe) with circumfrential 90% butt welded joints & 10% for flange joint with MS flanges i/c nuts, bolts, rubber gasket etc of following dia by electrical arc welding with minimum two layers capable to withstand required test pressure (minimum welding thickness shall be equal to pipe wall thickness) including manufacturing and fabrication of reducers/ tapers, all short pieces, bends of required degree as per site requirement made from parent tubes. The laying of pipe shall also include intermediate flanged joints spaced at an interval of 15 pipe lengths or where ever required as per direction of the Engineer-in-charge dully welded in three layers (two for outer & one on inner side) and all other operation such as cutting, cleaning, welding, jointing, fabrication of bends, tees etc, lowering and laying in excavated trench to ensure required level i/c flushing, cleaning, and hydraulic testing complete in all respect & to the entire satisfaction of the Engineer-in-Charge (Earth work in trenches will be measured and paid for separately). The fabricated bends shall have three or four cuts having its radius not less than five times the dia of pipe. The welding electrodes shall be as per IS 814 of Advani Oerlikon/L&T or ISI marked make. The damaged portion of the pipes and all the specials (if damaged during laying & jointing operation of pipe) made from the parent tube shall be provided anticorrosive treatment by applying two coats of anticorrosive bituminous paint over a priming coat as per AWWA specifications C-203-1978. The rates also includes entire carriage of material, flushing, cleaning of butt welded joints complete in all respect and to the best satisfaction & direction of Engineer in charge with in all leads and lifts.

RD 0 to RD 1710 = 1710 mts 100mm dia (M) Table-17

RD 1710 to RD 2340 =630mts 100mm dia (M) Table-5

dilbag singh

balraj

nirmit rastogi