NIT 10(22-23) Item No. 09

Hydraulic Excavator (3D) with driver and fuel. (DSR’21 0020)

Hire and running charges of Long boom crane 20 tonne capacity. (DSR’21 0028)

Generator 100 KVA/125 KVA for lighting etc. as required at site. (DSR’21 0070)

Supply of 600 mm dia. MS pipe having length of 6.00 Mtrs. made out of 10 mm thick MS Sheet. (DJB AR)

Supply of 01 No. 825 mm dia.(OD) & 600 mm dia.(ID) Flat Face/SW Flange made out of 25 mm thick MS Sheet. (DJB AR)

Pumping out water caused by springs, tidal or river seepage, broken water mains or drains and the like. (DSR’21 14.23)

Welding by gas or electric plant including transportation of plant at site etc. complete. (DSR’21 10.22)

P/F 2.00 Mtr. high MS sheet barricading with frame on angle iron 40X40X6 mm every post to be welded with MS channel IS LC 100X50X6.4 mm horizontal i/c. making holes in the channel and for providing embedding of 16 mm dia. round torque basis in the road as per drawing. (DJB SOR'22 51.75.1) (Total Area of Barricading = 55 Mtrs.(L) X 2 Mtrs.(H) = 110 Sq. Mtrs.)

Excavation of the site will be done using JCB. After excavation site will be prepared by creating foundations for laying the new scour line using JCB. If required, the old PSC scour line will be removed using Hydra Crane. After that 600 mm dia. MS gap pieces will be lowered in the site using Hydra Crane. After this Butt welding will be done to make joint between the MS gap pieces to make a long 600 mm dia. MS pipeline. After that joint of this pipeline with the valve will be made by welding a flange with part portion of the line & the same portion will be joint using collar joint with the remaining long pipeline. The flange arrangement will be tightened with the scour valve flange using Nut Bolts, Rubber Packing Sheet etc. Before this the old PSC pipeline arrangement has to be separated from scour valve. During this work part of one of the side wall of the chamber has to break down. After making total line arrangement functional scour valve will be opened to check any leakage in the line & is water is going to the drain properly or not. After checking if found ok then filling of the site will be done using JCB. (Justified Rate)

Repairing of Chamber: - Brick work with common burnt clay F.P.S. (non-modular) bricks of class designation 7.5 in foundation and plinth in: DSR’21 6.1 Cement mortar 1:6 (1 cement: 6 coarse sand). DSR’21 6.1.2

Repairing of Chamber: - 12 mm cement plaster of mix: DSR'21 13.1 1:6 (1 cement: 6 fine sand) DSR'21 13.1.12

AARADHYA CONSTRUCTION