Confirmatory Survey Design Construction and laying of sewer line testing and commissioning with one year defect liability period for for Ravindra Puri sewerage scheme dehradun

Amount

Dismantling manually including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge : for bituminous road

Demolishing cement concrete manually / by mechanical means including disposal of material within 50 metres lead as per direction of Engineer-in - charge.

Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Taking out existing CC interlocking paver blocks from footpath/ central verge, including removal of rubbish etc., disposal of unserviceable material to the dumping ground, for which payment shall be made separately and stacking of serviceable material within 50 metre lead as per direction of Engineer-in-Charge.

Excavation of earth depth upto 1.5 mt. Below G.L. for laying of sewer manholes, Gully pits, Chambers, sumps etc. in ordinary soil(earth,sand loam and clay) joints, pits, trimming, dressing, levelling refilling of trenchesincluding cutting of in 20 cm layers,watering and ramming the same including removal of surplus earth or other dismantled material up to a distance of 50 meters from the center of trenches.Excavation in soil mixed with morum,shingle,kankar requaring use of specials T&P. Excavation in soil mixed with morum, shingle, kankar requaring use of specials T&P. if required

0 mt to 1.5 mt B.G.L

1.5 mt to 3.00 mt B.G.L

3 to 4.5mt. B.G.L

Disposal of rubish obtained from dismantling of road & excavated excess earth away from the site including conveyance of material up to an average lead of 8 Km away from the site and corresponding required lift, loading, unloading etc complete as directed by the engineer-in-charge.

Cartage of excavated earth from site to suitable place as per direction of engineer in charge by head load (the work being in narrow lanes) and carrying back for filling of trenchesafter laying and jointing the pipes up.to max distance 60 m one side

Dewatering of water caused due to seepage of ground water and surface water due to rain etc. excluding excavation of foundation but during execution of civil works including supply of all machine operator, khalashi, POL, T&P, accessories required for proper completion of the work.

Provide & fixing of Open Timbering (covering1/3rd of surface area by planks), in trenches for the following depths below ground level consisting of 40mm thick approved country wood planks for poling board, 125mm × 75mm Indian Salwood walers and 100 mm dia Sal wood ballies for struts at 1.50m interval including removal after laying of sewer(both sides of trenches will be taken as one side for the purpose of payments & measurements i.e. area equals to length x depth of trenches. Dismantled timbering materials will be the property of the contractor.

0.0 - 3.0 mtr B.G.L.

Provide & fixing of Close Timbering in trenches for the following depths below ground level consisting of 40mm thick approved country wood planks for poling board, 125mm × 75mm Indian Salwood walers and 100 mm dia Sal wood ballies for struts at 1.50m interval including removal after laying of sewer(both sides of trenches will be taken as one side for the purpose of payments & measurements i.e. area equals to length x depth of trenches. Dismantled timbering materials will be the property of the contractor.

3.0-6.0 mtr B.G.L.

Providing plain cement concrete bedding with 1:2:4 (M-15 grade ) with carefully compacted backfill using 20mm and down hard crusher broken stone laying in layers of not more than 15 cm thick including shuttering, compaction, curing, etc., complete for PCC bedding and surrounding as per drawing and as directed by the Engineer-in-Charge. Width of bedding ( Outer diameter of pipe + 200mm or 1.25 times of outer diameter , whichever is more )

Providing granular bedding with cerefully compacted backfill at all level using graded hard crusher broken stone100% passing through 20mm sieve , 20-50% passing through 10mm sieve and 100% retained on 6mm sieve, laying in layers of not more then 15 cm thick including ramming, watering, compaction etc. complete for pipe bedding and surrounding as per drawing and as directed by the Engineer-in-Charge. Width of bedding ( Outer diameter of pipe + 200mm )

Supply laying and jointing of following dia. R.C.C. NP-3 class (with spigot & Socket (S/S) ends) as per IS: 458-2003 {Amended up to date) with Rubber gaskets at site of work, lowering the same into trenches in depths up to required depth below ground level true to alignment as per drawings and jointing with 1:1 cement mortar in coarse sand including cost of all jointing materials, testing etc. complete as per specifications and as directed by the Engineer-in-Charge.( Pipes of dia 300mm and above have to be NP-3 reinforced made by vertical vibrated casting process with S/S ends conforming to IS 458 : 2003.

200 mm dia

0 - 1.5 m depth

1.5 - 3 m depth

3 - 4.5 m depth

Supply, Carting to the site of work of D.I. K-7 S&S pipe 'LA tyton joint' lowering them into trenches and laying true to alignment and gradient including testing of pipe line but excluding cost of trench for sewer works.

200 mm dia

0 - 1.5 m depth

1.5 - 3 m depth

Supply of all material, labour and T&P to provide the barricading along trench during excavation and laying of pipe with eucalyptus ballies of 100mm dia in horizontal section in two rows and vertical post of 125 mm dia at 2 m C/C fastened with Nariyal rope including provision of caution board.

Making Connection of new sewer line to existing manhole including necessary dewatering for connection, making holes in manhole wall and repairing same after connection, making cunet for connected sewer line if required, disposal of rubbish including all material and labour, T&P etc. complete

Provision for diversion and reparing of electric/telephone cables/wires wherever necessary including supply of all materials, labour, T&P etc. complete.

Shifting and repairing of telephone cables.

Shifting and repairing to electric poles

Provision for crossing sewers through existing drains coming across the alignment of sewer including making it good after laying the pipe.

Shifting of domestic water supply house connection coming in the alignment of sewer line/mahnole chamber including excavation, refilling, supply of all material, pipes, specials etc., labour, T&P and making good complete as per entire satisfaction of engineer in charge.

15 to 20mm G.I, Pipe

25 to 32mm G.I. Pipe

65 to 150 mm PVC Pipe

Provision for road Reinstatement with plain cement concrete

1:3:6 (1 Cement : 3 coarse sand (zone-III) : 6 graded stone aggregate 20 mm nominal size)

1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) : 3 graded stone aggregate 20 mm nominal size)

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in Cement mortar 1:6 (1 cement : 6 coarse sand)

Construction of granular sub-base by providing well graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator at OMC, and compacting with smooth wheel roller to achieve the desired density, complete as per Technical Specification

Constructing Brick Masonry Manhole of various dia and depth as per IS :4111 par1( latest ammendment) in FPS brick class designation M-100 in Cement Mortar 1:5 (1 cement : 5 coarse sand) including nside and outside 15mm thick plastering in cement mortar 1:3(1 cement : 3 coarse sand) finished with a floating coat of neat cement inside only. The work includes excavation, dewatering, planking, strutting, foot step (As per latest IS Code 10910) (Pattern-2 Heavy), manhole cover frame (Heavy duty EHD35), etc. refilling, disposal of surplus earth with all lift and lead of 50m, Including construction of concrete base with PCC 1:4:8 (1 cement : 1 coarse sand : 4 stone aggregate 40mm nominal size), preparation of channal up to the height of'the'pipe and benching in PCC 1:2:4 (1 cement : 2 coarse sand : 4 stone aggregate 20mm nominal size) including neat cement finished, suitable connection of inlet & outlet pipes, testing (watertightness} of manhole, curing etc. complete as per specification and drawing and as per entire satisfaction of Engineer-in-Charge (the depth of manhole will be measured from the invert of the pipe to top of the manhole cover).

900mm internal diameter at bottom,0.90-1.65m depths

1200 mm internal diameter at bottom ,1.65-2.30m depths

1500 mm internal diameter at bottom ,2.30m-4.95 m depths

RCC Circular Manhole .

1500 mm dia,4.95m-9.00 m depths

Construction of following house connection chamber in frunt of house boundary wall, Supply & laying of PVC 110 mm dia Pipe 6 Kg Pressure, from manhole to connecting chamber and supply & fixing of manhole cover frame, including making of chamber all material labour T&P etc complete in all respect as per direction of Engineer in charge.

45mm x 45mm x 0.6 m depth

0.30m x 0.30m x 0.6 m depth

Providing and laying factory made chamfered edge Cement Concrete paver blocks in footpath, parks, lawns, drive ways or light traffic parking etc, of required strength, thickness & size/ shape, made by table vibratory method using PU mould, laid in required colour & pattern over 50 mm thick compacted bed of sand, compacting and proper embedding/laying of inter locking paver blocks into the sand bedding layer through vibratory compaction by using plate vibrator, filling the joints with sand and cutting of paver blocks as per required size and pattern, finishing and sweeping extra sand. complete all as per direction of Engineer-in-Charge.

80 mm thick C.C. paver block of M-35 grade with approved colour design and pattern.

Providing and Spreading RBM i.e.,River Bed Material (treated /surface course material )in uniform layer with motor grader on prepared surace with rotavator and compacting with smooth wheeled roller to achieve the desired density.

Deduction in the depth of the manhole to regulate payments for variation of actual depth of manholes in following sizes.

900mm dia ,0.90-1.65m depths

1200 mm dia ,1.65-2.30m depths

1500 mm dia,2.30m-4.95 m depths

Deduction in the depth of the manhole to regulate payments for variation of actual depth of manholes in following sizes.

1500 mm dia,4.95m-9.00 m depths

sakla nand lakhera (BID ID -391681)