ADDN ALTN AND UPGRADATION OF SEWAGE SYSTEM AT BASE HOSPITAL UNDER GE EAST DELHI CANTT 10 PARA 35 WORK

Excavation in trenches not exc. 1.5m wide and not exc. 1.5m in depth; for foundation etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sqm on plan in soft/loose soil and getting out, complete all as specified & directed.

Excavation in trenches not exc. 1.5m wide and exc. 1.5m in depth but n exc 3.0m in depth; for foundation etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sqm on plan in soft/loose soil and getting out, complete all as specified & directed.

Excavation in trenches not exc. 1.5m wide and exc. 3.0m in depth but n exc 4.5m in depth; for foundation etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sqm on plan in soft/loose soil and getting out, complete all as specified & directed.

Returning, filling in (soil), including spreading, leveling, watering and well ramming in layers not exc. 25cm, complete all as specifed & directed.

Removing excavated material to a distance exceeding. 250m but n exceeding 500m and depositing where directed at a level not exc. 1.5m above the starting point, complete all as specified & directed.

Demolition and breaking up drain pipes (Salt glazed stoneware, AC or Reinforced concrete) set in cement mortar, internal dia of pipe 150mm, complete all as specifed & directed.

Demolition of brickwork or stone/boulder masonry built in cement mortar including all quoins, arches, pillars etc., but excluding ashlar facing, dressed stone work and precast concrete articles, complete all as specified & directed.

Supply and fixing/laying class SN-8, dia of pipe 150mm & thickness of pipe as specified in IS 16098 (Part-2) : 2013, clause 6.3.1 table no 5 structured wall polythelene piping system (pipe with online/offline coupler and elastomeric sealing ring) with non smooth external anular corrugated and smooth internal surface (double wall) for non pressure underground sewerage & drainage application polythylene piping fitted with help of coupler attached with one end of pipes, sliding over the elastomeric sealing rubber ring placed on the specified valley of the corrugation at the spigot end, lowering the same into the trench, laying at prescribed gradient, depth and alignment, testing the water tightness of the joint, ensuring the continuity tests of the specified pipe segments etc including all necessary fittings (cost of fittings, rubber rings, gaskets etc includded), complete all as specified and directed.

M&L for concrete bed to 150mm bore drain pipes including packing under, and haunching against the sides of pipes after they are laid in cement concret 1:4:8 (Nominal mix) type D-2 using 40mm graded crushed stone aggregate, and tested, complete all as specified & directed.

M&L for construction of brick manhole of internal size 0.60m x 0.75m x 0.80m (MH1) including RCC man hole cover, earthwork, PCC 1:4:8 type D2 for bedding, PCC 1:2:4 type B1 for benching, 15mm thick rendering in cement mortar 1:4 internally and externally above ground floor, back filling etc complete all as specified, directed and shown on drawing.