Chennai Metropolitan Water Supply And Sewerage Board Tender

Manufacturing and supplying of 1700 mm (internal Diameter) M.S encasing pipe segment of length approx. 1.25 to 2.50 m confirming to IS 800 - 1961 etc., Complete with wall thickness of 22 mm (all labour, materials, tools and plants, M.S Plates, etc.,with epoxy lining as per IS 13260 1993 & outside coating with cement mortar 20mm thick as per IS 1916-1989 and IS 7322-1985 1700mm dia (ID) MS encasing are to be supplied by the tenderer / contractors at his own cost only) and transporting the same from the fabrication yard to auger boring location including loading, unloading etc and stacking the same at nominated location as directed by the Engineer- in-charge

Pushing of 1700 mm inner diameter, 22 mm wall thickness MS pipe below the Running Railway track at the depth of 5.0 m from ground level under traffic condition without infringing and without causing any hindrance to the movement of trains duly providing the barricade where ever necessary by horizontal Augur boring method (adopting Trenchless Technology) strictly adhearing to the standard procedure to avoid the sliding of soil at the front of pipe at normal speed of the Running trains using the power Horizontal Auger Boring Machine only. (The cost includes the welding of pipe segments as it is laid by auger boring with all labour, materials, tools, plants and equipments including mobilisation of equipments and MS pipe from storage point the work spot with all lead, lift etc and consumables stores, fuel, crew, temporary installations anchoring arrangements to install auger boring machine and the temporary access to the work spot for transporting the equipments and pipes etc).

A) In ordinarysoil like clay, sand, sand stone, murrom etc by using tungston carbide cutter