Laying and jointing of different size of D.I. Pipe and other appurtenant works specified in BOQ of tender

Amount

Excavation of earth below G.L. by manually or by mechanical means for laying of Sewers, Manholes, Gully pits, Chambers etc. in soil including extra excavation below inverts, trimming and dressing of sides, leveling and back filling of trenches by excavated earth in 20cm layers, watering and ramming the same including removal of surplus earth or other dismantled material upto a distance of 50 meters from the centre of trenches and cleaning of sites properly after completion of the work. Excavation by mechanical means shall be restricted upto 90 cm above invert levels at every point of excavation. Excavation from invert levels to 90cm above shall be done manually only.

Soil mixed with moorum, shingle & kankar etc. using of any specials, T&P, if required.

0.00m to 1.50m B.G.L.

1.50m to 3.00m B.G.L.

Medium rock by chiseling or by using of any specials, T&P, if required including stacking of useful material within 50m.

0.00m to 1.50m B.G.L.

1.50m to 3.00m B.G.L.

Provide & fixing of Open Timbering ( covering 1/3rd 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 x 75mm Indian Salwood walers and 100mm dia Salwood 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 equal to length x depth of trenches. Dismantled timbering materials will be the property of the contractor.

Depth upto 3.00m, below G.L.

Supply & Laying-Jointing of following dia D.I. K-7 S&S pipes with rubber gaskets to the site of work, loweing the same into trenches below ground level true to alignment, making the joints with approved EPDM quality of rubber gaskets including cost of all jointing materials and tesdting etc. complete but excluding excavation and back filling of trenches upto ground level.

150mm dia

0.00m to 1.50m B.G.L.

1.50m to 3.00m B.G.L.

Providing & laying non pressure NP-3 class (medium duty) joined with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand ) including testing of joints etc. complete.

150mm dia

0.00m to 1.50m B.G.L.

Provide all materials, labour, T&P etc. and construct brick masonry circular manhole i/c supply and fixing of foot steps & extra heavy duty manhole covers as per Jal Nigam specifications and drawings.

For 1.65m B.G.L. (900mm internal dia)

For 3.00m B.G.L. (1200mm internal dia)

Variation in depth of shaft to regulate the cost of manhole.

For 1.65m B.G.L. (900mm internal dia)

For 3.00m B.G.L. (1200mm internal dia)

Provide all materials, labour, T&P etc. and construct brick masonry house connecting chambers as per Jal Nigam specifications and drawings.

0.90 x 0.60 x 1.50m internal size

Variation in depth of shaft to regulate the cost of house connecting chambers.

0.00m to 1.50m B.G.L.

Carting and recarting of excavated earth in the narrow lanes, in which excavated earth is not possible to collect the earth above the trenches assuming 10% of total excavated earth. (upto 5km @ Rs. 2.70/qtl./km)

Disposal of surplus earth upto a distance of 8.0 Km including loading, transporting, unloading to approved dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Shifting repair & damage pipe line coming across in the alignment of sewer line. Supply, Carting, Laying, Jointing, fixing and testing of G.I. screwed pipes with specials and fittings in trenches under ground, outsite the building including cutting, threading etc. complete

15 mm dia

20 mm dia

25 mm dia

32 mm dia

40 mm dia

50 mm dia

Excavation in soil mixed with single, boulders etc. requiring the use of special T&P for pipeline trenches including lift upto 1.5 m and lead upto 30 m, refilling, watring, ramming of excavated earth into the trenches.

Supply and cartage of sluice or reflux valves of following sizes to the site of work, lowering in already prepared trenches and fixing them in position, but excluding jointing which shall be paid sparately, including cost of valves, non resing (P.N. 1.00)

15 mm dia

20 mm dia

25 mm dia

32 mm dia

40 mm dia

50 mm dia

Making connection with existing M.S. galvanised mains of upto 25 mm nominal dia, including cutting and threading of pipe, bailing out water, fixing if required, specials and testing etc. complete, but excluding cost of insertiion pipes and specials besides boring out and also subsequent back fill existing main.

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

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

Dismantling manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 meters lead as per direction of Engineer-in-charge.

bituminous road

Providing and laying C.C. pavement of mix M-25 concrete, finished by floating, brooming with wire brush etc. complete as per specifications and directions of Engineer-incharge.

Making connection of drain or sewer line with existing manhole including breaking into and making good the walls, floors with cement concrete 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) cement plastered on both sides with cement mortar 1:3 (1 cement : 3 coarse sand), finished with a floating coat of neat cement and making necessary channels for the drain etc. complete

For pipes 150 mm diameter

Repair of drains, damaged at the time of laying of sewer lines.

Construction of granular sub-base by providing well graded material, spreading in uniform layers , mixing by mix in place method and compacting the material to achieve the desired density. - Using Gravel mix soil using : With material conforming to Grade-III (size range 26.5 mm to 0.075 mm )

0.00m to 1.50m B.G.L.

1.50m to 3.00m B.G.L.

Provision for barricading in two rows and necessary diversion of paths and where as necessary with the help of ballies, ropes, flags, signals and light signals etc. as per requirement. Including supply of all material, T&P, etc complete.

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level : 1:1.5:3 (1 cement : 1.5 coarse sand (zone-III): 3 graded stone aggregate 20 mm nominal size).

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. Mild steel and Medium Tensile steel bars

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:4 (1 cement : 4 coarse sand)

15 mm cement plaster on rough side of single or half brick wall of mix: 1:4 (1 cement: 4 coarse sand)

Demolishing stone rubble masonry manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge : In cement mortar

Random rubble masonry with hard stone in foundation and plinth including levelling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) upto plinth level with : Cement mortar 1:6 (1 cement : 6 coarse sand)