REPAIRS CLEANING OF SEWAGE LINES MANHOLES AT GTOC/GTE, SHO, VLO, CE POOL, DCA, CMP C S AND RMS UNDER AGE BR (SOUTH) BANGALORE.

Amount

Excavation in trenches n. exc 1.50 m wide and n.exc 1.5 m deep and taking out in foundation in soft/ loose soil complete all as specified and as directed.

Taking down cement plaster on brick or stone walls including racking out joints, hacking for key scrubing down with water etc.and removing from the campus complete all as specified and as directed.

Demolition of Brick Work/concrete/Stone boulder masonry built in cement mortar as in drain/compound wall etc of any description complete all as specified and as directed.

M&L for precast cement concrete block masonry type C1, 1:3:6 (20 mm graded agg) with solid blocks, exc 10 cm in width and setting in cement mortar 1:6 complete all as specified and directed.

Demolition concrete in ground floors and pavings n exc 15cm thickness (below or above ground level) including removing the debris out side MD land complete all as specified and as directed.

M&L for returning filling in including spreading levelling watering and well ramming in layers n.exc 25cm of soft / loose soil complete all as specified and as directed.

M&L for removal of excavated material exc 250m but up to a distance of 1.5 km and depositing where directed complete all as specified and as directed.

M&L for providing cement concrete type C1, 1:3:6 ( 20 mm graded agg)as in coping, bed plates for angle iron etc complete all as specified and as directed.

M&L for rendering 15mm thick on fair face brick wall finished even and smooth without usingh extra cement CM 1:6 complete all as specified and as directed.

M&L PCC 1:4:8 type D2 using 40mm graded stone aggregate as in foundation concrete complete all as specified and as directed.

M&L Plain Cement Concrete Type B1 1:2:4 (using 20 mm graded granite stone aggregate) as in benching of man holes including forming centre channels half round or 1/4 section complete all as specified and as directed.

Extra for forming fair finished channel or drain 30cm ginth (inner girth) in cement concrete using extra cement incl forms, moulds stopped complete all as specified and as directed.

Cutting into existing manholes for connecting new drains 200 mm dia, making good to pipe and rendering, cutting out existing benching for and forming branch channel (1/2 round or 3/4 section) in cement concrete 1:2:4 type B-l smooth finished, and reforming benching as required complete all as specified and as directed.

Demolition /breaking of drain pipes of any description set in CM of size 150 mm and disposing as directed complete all as specified and as directed.

Demolition /breaking of drain pipes of any description set in CM of size 200 mm and disposing as directed complete all as specified and as directed.

M&L Reinforced concrete pipes, class NP3, laid in trenches and jointed complete with collars of size 200mm dia and jointed complete all as specified and as directed.

M&L Concrete bed ( 1 : 3 : 6) Type C-2 to drain pipes 200 mm bore (Thickness of bed 150 mm and width 500 mm) including packing under, and haunching against the sides of pipes after they are laid and tested in complete all as specified and as directed.

Demolition of Reinforced precast cement concrete manhole cover slab of any description and in any position including segregation of reinforcement etc complete all as specified and as directed.

M&L Pre cast RCC (1:2:4) type B1 for cover slab for man holes and set in cement mortar (1:6) complete all as specified and as directed.

M&L for mildsteel deformed,TMT bars 10 mm cut to length bend to shape require including cranking hooping ends binding in & wire annealed not less than 0.9 mm dia or securing with clips all as specified and as directed.

M&L for mildsteel deformed ,TMT bars 6 to 8 mm cut to length bend to shape require including cranking hooping ends binding in & wire annealed not less than 0.9 mm dia or securing with clips all as specified and as directed.

Cleaning of Man holes/chambers by removing muck/sludge/liquid mud etc ( in foul position) upto 1 Mtr depth including taking off manhole covers and refixing the same in position upto 1 Mtr depth of any size of Man holes and remove the sludge/muck/liquid mud outside the MD land complete all as specified and as directed.

All as per item No 22 here in before but depth exceeding 1 Mtr and not exceeding 3 Mtr depth , ditto- complete all as specified and as directed.

Cleaning of the blocked/choked sewage lines by rodding between Man holes in any depth, cleaning and removing mud/sludge /liquid mud (in foul position) from pipes out side MD land including testing of pipes by filling with water complete for 100mm bore pipe complete all as specified and as directed.

All as per item No 24 here in before but 150mm bore pipe complete all as specified and as directed.

All as per item No 24 here in before but 200 mm bore pipe complete all as specified and as directed.

Cleaning/clearing of 200mm bore sewer line under ground of any depth by removing any type of blockage including desilting, descaling and de-chocking from drain mechanically with combined high pressure water jeting cum suction (Vacuum) type machine mounted on LCV/HCV and having facilities of high pressure water jetting, high pressure vacuum and provn of hydraulic application through high pressure thermoplastic fibre based water jetting hose and through conical round shape nozzles pipe and flushing after cleaning/clearing of sewage line.The entire sludge water shall be disposed off out of Defence land complete all as specified and directed.

Provn of labours for opening cover of manhole/gully trap, floor trap/Nahani trap at WHB/WC upto 1st manhole of any type and any mouth depth removing the sludge/solid content from the manholes/gully trap/floor trap/nahani trap by manual/mechanical method and cleaning the sewer line i.e soil, waste pie upto 1st manhole either by water pressure, flushing with water or rodding and other suitable means at the discretion of the contractor at his own arrangement so as to remove the blockages and making the sewer lines and manholes/gully trap/floor trap/ Nahani trap fully functional to the entire satisfaction of Engineer-in-Charge and removing the sludge/solid contents out side defence land, repositioning of the RCC/CI cover slab grating all as directed by Engineer-in-Charge in the area . (Note Item No:22 to 28: Contractor shall deploy minimum 02 safaiwala per day to carry out daily complaints and other works for all areas i.e GTOC/GTE, DCA PHASE III&IV, SHO, AALC, PGSGR,CE POOL, BSO YARD, AGE E/M YARD, CMP AND RMS.)

OM CONSTRUCTIONS