Supply and laying of Pipeline and MS Pipe Trenchless from Kamarajar Street to Ranga Salai in ward no.46 and 45

Earth work excavation and depositing on bank initial lead of 1.00mand lift of 2m in narrow trenches for laying of pipes for water supply in the following type of soils of sand,silt or othe loose soil ,wey sand or silt not under water light black cotton soil ,sandy loam and ordinary soil etc complete as per standard specification.

Supply and Delivery of PVC etc complete as per Standard specifications

200mm dia PVC

200mm dia HDPE Pipe PN 6 Velachery Main Road Trenchless

300mm dia MS Pipe Velachery Main Road Trenchless

Lowering of Pipes and specials in the trenches and laying to proper grade and alignment and as directed by the TWAD officers up to 2.00m depth Page No : 160

200mm dia PVC

200mm dia HDPE Pipe PN 6 Velachery Main Road Trenchless

Jointing the C.I/ D.I - S/S pipes and specials with molten lead and Yarn including caulking the joints.(Including cost of jointing materials) For depth upto 2m Page No ; 164

200mm dia PVC

Refilling with excavated earth other than sand with an initial head load of 10 mts. and depositing the earth as shown by the departmental officers in layers of not more than 15 cm thick well rammed, watered and consolidated etc. complete complying with standard specification

Excavating of driving pit and receiving pit of size 3.00m (length) x 3.50m (breadth), upto 5m depth in all soil including shoring and strutting using 6mm tk MS Plate of size3.50m x 3.50m usable for 20 operations and providing 16mmthickness MS plate of size 3.00m x 3.50m with 100mmx100mm x 12mm angles of 4m length for holding the MSplates for Thrust arrangements to receive the impacts duringpushing operation of encasing pipe. Lowering the followingsize of MS encasing pipe by using Contractor’s crane andmachineries and jointing MS pipes by welding, across theNational Highways/State Highways/ Railways/Canal crossingetc and driving the horizontal bore by pushing / jackingmethod (trenchless technology method) using contractor’smachineries such as cranes, jacks, jacking materials,generator, welding machineries, compressor, jack hammerand otherequipments etc. without interfering and causingany hindrance to the movement of traffic or any othervehicles, without any disturbances to the railway/road/canalformation etc. including bailing / pumping of water whereever necessary without affecting any installation like watersupply pipeline/telephone cable, electric cables etc. passingnearby area and scooping the earth inside the pipes and pitand depositing the surplus earth in a convenient place andleveling the site after completion of entire work as directed byTWAD Engineers. The rate includes the cost of driving pit,thrust bed/wall and receiving pit to the depth of om to 5mexcluding the cost of MS pipes.

Replacing Pipeline Existing Damaged Pipeline

Provision For Road Scan and Testing

Dewatering using disel Engine 10 HP Pumpset including Hire charge ,Cost od Disel ,Engine oil,Labour charges,Conveyance od pumpset and fuel to site and back ,loading,unloading and any other incidental chargesetc complete

Providing and laying, spreading and compacting graded stone aggregate to Wet mix macadam (WMM) specification including premixing the material with water at OMC in mechanical mix plant carriage to mixed material by tipper to site laying in uniform layers with paver in sub base / base course on well prepared surface and compacting with vibratory roller to achive the desired density complete as per clasue 406 of MORTH specifications.

Plain Cement Concrete 1:2:4 (one cement, two Crushed Stone Sand (M- Sand) and four coarse aggregates) using 20mm size ISS HBG metal including cost and conveyance of all materials to site and including for the mixing, laying and labour charges etc., complete as per standard specification