Strengthening of 500 mm dia. Sitlee- Manda mild steel spiral welded rising main

Strengthening of 500 mm dia. Sitlee-Manda mild steel spiral welded rising main near approx. RD-1300 near Asia Greens restaurant. Carriage of materials such as gas cutter, oxyacetylene gas cylinders, DG welding set, welding leads, welding electrodes etc and other allied accessories from workshop to actual site of work by loading in mechanical transport and unloading there by manual labour. Open the washout valves to drain/empty the pipe. Hold the pipe by providing angle steel supports using ISMB 150. The job includes partial demolishing of 03 nos. RCC anchor blocks. Dismantling/ cutting of worn out 500 mm dia. MS spirally welded pipe with the help of gas cutter. Carrying the dismantled pipe pieces by head load / by crane and then loading it in mechanical transport and finally stacking in Sitlee/ Store. Providing, laying, cutting, aligning, welding, testing and commissioning of 500 mm dia. 08 mm thick Mild steel spiral welded pipe (50 mtrs in length) conforming to IS 3589:2001 with up to date amendments with beveled ends for replacement of old/ deteriorated existing rising main. Loading the 500 mm dia. new mild steel spiral welded pipes in mechanical transport by hydra crane and unloading the same at the site of work by crane. Laying the new MS pipes along the same alignment of the dismantled pipe after duly painted with red oxide and two coats of black synthetic enamel paint then aligning and butt jointing them by welding in three layers/coats by using superior quality welding electrodes of size 3.14 mm and 4 mm. The welding should be free from any defects to avoid the leakage. The job also includes providing of supports to pipes at three spots by fabrication of steel support framed as truss using ISMB 150. Laying the foundation by providing cement concrete for steel supports by excavating the earth upto 0.5 mtr in depth. The job also includes providing and laying the RCC anchor blocks 02 nos. of size 1.5 m x 0.9 m x 1.5 m. The job also includes fabrication of washout by providing and fitting the 150 mm dia. heavy duty sluice valve having pressure rating PN 1.6 MPa for the purpose of draining the pipe during repair works. The pipe should be duly painted with one coat of red oxide and two coats of black synthetic enamel paint. Testing the pipe on full load conditions. Complete job includes cost of material, labour charges, transport charges, POL used for DG set, DG welding set, gas cutters, crane charges, etc.