operation and maintenance in Juna Akhada and Bairagi Camp during Kumbh mela 2021

Amount

Excavation of earth upto 1.5 mt. depth below G.L. for laying of Sewer, Man-Holes, Gully Pits, Chambers, Sumps etc. in ordinary soil (earth, sand, loam and clay) including extra excavation below inverts trimming & dressing of sides, levelling and back filling of trenches by excavated earth 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 and cleaning of site properly after complition of the work

Excavation in soil mixed with moorum, shingle, Kankar.

Depth from 0.0 upto 1.5 m

Depth from 1.5 upto 3.0 m

Depth from 3.0 upto 4,5 m

Depth from 4.5 upto 6.0 m

Filling available excavated earth (excluding boulder / rock in trenches in layers, not exceeding 20 cm in depth consolidating each deposited layer by ramming with mechanical compector under optimum moisture content to give atleast 95% of maximum dry density (proctor density) lead up to 50m.

Depth from 0.0 upto 3.0 m

Depth from 3.0 upto 6.0 m

Provide & fix close timbering in trenches upto required depth. Below ground level consisting of 40mm - 50mm thick approved country wood planks for poling board 125mm* 75mm India Salwood walers and 100mm dia Sal bailies for struts at 1.50m c/c including removal after laying of sewar (both sides of trenches will be taken as one side for the purpose of payments & measurements i.e. face area timbered equals to length x depth of trench). Dismantled timbering materials will be the property of the contractor.

0.00 to 3.00 mBGL

3.00 to 6.00 mBGL

Providing and fix open timbering covering 1/3 surface area by planks in trenches upto required depth. Below ground level consisting, of 40mm - 50mm thick approved country wood planks for poling board 125mm *75mm India Salwood walers and 100mm dia Sal bailies for struts at 1.50m c/c including removal after laying of sewar (both sides of trenches will be taken as one side for the purpose of payments & measurements i.e. face area timbered equals to length x depth of trench). Dismantled timbering materials will be the property of the contractor.

0.00 to 3.00 mBGL

3.00 to 6.00 mBGL

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)

Supply & Laying - Jointing of following dia. Asbestos cement pipe. with socket and rubber gaskets to the site of work, lowering the same into trenches below ground level true to alignment, making the joints with rubber gaskets. including cost of all jointing materials and testing etc. complete but excluding excavation and backfilling of trenches upto ground level.

Abestos cement ( MAZZA ) pipe conforming to IS :6908-1991 for sewerage and drainage

Class I

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 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

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 mm depths

Constructing Brick Masonry sewer connecting chamber (SCC) of various sizes and depth as per drawing in FPS brick class designation M-100 in.,Cement Mortar 1:5 (1 cement : 5 coarse sand) including inside and outside 15mm thick plastering in cement mortar 1:3 (1 cement : 3 coarse sand)finished with a floating with a neat cement inside only. The work includes excavation, dewatering, planking, strutting 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 : 4 coarse sand : 8 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 water tightness of manhole, curing etc. complete as per specification and drawing and as per entire satisfaction ol Engineer-in-Charge (the depth of manhole will be measured from the invert of the pipe to top of the manhole cover).

600 x 600mm x 1.50 m deep

Deduction in the depth of the sewer connecting chamber (SCC) to regulate payments for variation of actual depth of manholes in following sizes.

600 x 600mm x 1.5 m deep

Providing and fixing orange colour safety foot rest of minimum 6mm thick plastic encapsulated as per IS:10910 on 12mm dia steel bar conforming to IS: 1786 having minimum cross section as 23 mmx 25mm and over all minimum length 263 mm and width as 165mm with minimum 112 mm space between protuded legs having 2mm tread on top surface by ribbing or chequering besides necessary and adequate anchoring projections on tail length on 138 mm as per standard drawing and suitable to with stand the bend test and chemical resistance test as per specifications and having manufacturer permanent identification mark to be visible even after fixing, including fixing in manhole with 30x20x15 cm cement concrete block 1:3:6 (1 cement :3 coarse sand :6 graded stone aggregate 20mm nominal size) complete as per design.

Providing and fixing in position pre-cast RCC manhole cover and frame of required shape and approved quality as per directed by Engineer In charge. (The name of the department and date of manufacturing and duty of manhole cover will be embosed on the top of the manhole cover)

Circular shape 560mm internal dia m.

Providing Barricading (covered) of fabricated with steel structures like channels, angle and sheet etc.upto height of 1.80 m. which is now a days in practice including providing caution boards, night lamp and watch and ward of site.

Disposal of waste water by electric pumps. Pumps are provided by department at divisional store.supply of all materials labour Including operator,pipes,making temporary tinsheed T&P operation and maintenance during kumbh mela period etc. complete.

Laying and jointing of D.I.pipe of 250 mm dia D.I.pipe line including supply of all fittings, materials labour T&P etc. complete.

Making temporary sump well (5 meter dia and 4 meter deep ) with pvc sheet including all labour materials, T&P, ect. Complete

devendra prakash contractors

M/S SUKHDEV KUMAR