Construction of internal sewerage system in sector 8A,9A and 9B of Bhoomi Vikas, Grihsthan Evam Bazar yojana Ayodhya.

Excavation in following depth below ground level for laying sewers, manholes, gully, pits, chambers, sumps etc. in ordinary soil (earth, sand, loam and clay) including cutting of joints pits, trimming, dressing leveling, refilling of trenches in 20 cm, layers watering sand ramming the same including removal of surplus earth or other dismantled materials up to a distance of 50 metres from the centres of trenches as per direction of E/I. Upto 1.50 m. BGL

Excavation in following depth below ground level for laying sewers, manholes, gully, pits, chambers, sumps etc. in ordinary soil (earth, sand, loam and clay) including cutting of joints pits, trimming, dressing leveling, refilling of trenches in 20 cm, layers watering sand ramming the same including removal of surplus earth or other dismantled materials up to a distance of 50 metres from the centres of trenches as per direction of E/I.1.5 to 3.0 m. BGL

Add extra over item 1 above for bailing out or pumping out sub-soil water to keep trenches dry during excavation of trenches other constructions and laying of sewers.1.50 to 3.0 m. BGL

Provide and fix open timbering (covering 1/3rd of surface are by planks) in trenches for the depth upto 3.0 m. below G.L. consisting of 40 mm thick approved country wood planks for poling boards 125 m.m. x 75 m.m. Country wood walers and 100 m.m. dia Sal ballies for struts at 1.50 m c/c including removal after laying of sewer both sides of trenches will be taken as one side for the purpose of payments and measurements i.e area equals to length x depth of trench. Dismantled timbering materials will be the property of the contractor.0.0 to 3.0 m. BGL

Supply of following nominal dia R.C.C. hume pipes NP-3 class ISI marked tested as per the relevant I.S. code, including rubber ring for jointing the pipe including all taxes, charges, cartage, loading, unloading, stacking, etc. upto the store of work.250 m.m.

Supply of following nominal dia R.C.C. hume pipes NP-3 class ISI marked tested as per the relevant I.S. code, including rubber ring for jointing the pipe including all taxes, charges, cartage, loading, unloading, stacking, etc. upto the store of work.300 m.m.

Carting of following nominal dia R.C.C. hume pipes (NP3 class) and specials from store to the site of work, lowering the same into trenches in depths given below, placing in position true to alignment and gradient, make the joints with rubber ring, filling the joint with necessary spun yarn soaked in bitumen and/or with 1:2 cement mortar in coarse sand as per direction of engineer incharge, including excavation of earth below invert level of pipe, cost of all jointing materials, testing etc. complete but excluding excavation and refilling of trenches from ground level to the invert level of pipes.250 mm dia Upto 1.50 m. BGL

Carting of following nominal dia R.C.C. hume pipes (NP3 class) and specials from store to the site of work, lowering the same into trenches in depths given below, placing in position true to alignment and gradient, make the joints with rubber ring, filling the joint with necessary spun yarn soaked in bitumen and/or with 1:2 cement mortar in coarse sand as per direction of engineer incharge, including excavation of earth below invert level of pipe, cost of all jointing materials, testing etc. complete but excluding excavation and refilling of trenches from ground level to the invert level of pipes.300 mm dia Upto 1.50 m. BGL

Carting of following nominal dia R.C.C. hume pipes (NP3 class) and specials from store to the site of work, lowering the same into trenches in depths given below, placing in position true to alignment and gradient, make the joints with rubber ring, filling the joint with necessary spun yarn soaked in bitumen and/or with 1:2 cement mortar in coarse sand as per direction of engineer incharge, including excavation of earth below invert level of pipe, cost of all jointing materials, testing etc. complete but excluding excavation and refilling of trenches from ground level to the invert level of pipes.300 mm dia 1.50 to 3.0 m. BGL

Providing and fixing in position precast RCC Manholes of following internal dia. having RCC eccentric corbelled portion and circular rings/risers designed according to IS 456, IS 3370 and other relevant IS codes for IRC class AA loading, made of M40 grade concrete, the circular ring having provision for 4 nos. house connections, having SFRC foot steps inside-staggered in two vertical rows having c/c distance 300 mm horizontally and vertically, the top footrest being at 450 mm below manhole cover and lowest not more than 300 mm above the benching, and the reinforcement shall be of TMT bars conforming to IS 1786, including necessary excavation, construction of in-situ 200 mm thick base RCC raft/platform, RCC ring supporting the precast rings/risers and CC benching, all in M20 grade concrete, over 75 mm thick M15 grade PCC in accordance with the structural design/drawing to be provided after vetting by a Govt. Engg. College/IIT and it shall also include shop/lab checking/testing of the product and also providing and fixing SFRC Heavy Duty Manhole frame and cover as per IS 12592, including lowering of various components in the excavated pit at site, assembling/installation and jointing them properly in position, hydraulic testing including material, labour and T&P all complete to the satisfaction of the engineer in charge.(Thickness of rings/risers is taken as 125 mm. For variation in design thickness, the extra cost shall be payable accordingly).

1200 mm internal dia Manhole For Manhole height of 1.83 m +OD of pipe from IL

Regulating shaft height above 1.83 m+OD of pipe from IL

1500 mm internal dia Manhole For Manhole height of 2.13 m +OD of pipe from IL

Regulating shaft height above 2.13 m +OD of pipe from IL

Beddings for laying RCC pipes:-Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering - All work upto plinth level 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) (for class Ab bedding)

Centring and shuttering including strutting, propping etc. and removal of form work for Foundations, footings, bases for columns.

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering - All work upto plinth level 1:5:10 (1 cement : 5 coarse sand : 10 graded stone aggregate 40 mm nominal size)

Extra for laying concrete in or under water and/or liquid mud including cost of pumping or bailing out water and removing slush etc. complete. Note-The quantity will be calculated by multiplying the depth measured from subsoil water level up to centre of gravity of concrete under subsoil water level with quantity of concrete in cum executed under subsoil water. The depth of centre of gravity shall be reckoned correct to 0.1m (0.05m or more shall be taken as 0.1m and less than 0.05 shall be ignored). 1:2:4 and 1:1.5 : 3 (for all classes of bedding)

Same as above item no. 14.1 but in 1:5:10 (1 cement : 5 coarse sand : 10 graded stone aggregate 40 mm nominal size) (for all classes of bedding)

Providing, laying in position, and installing RCC Precast Inter-connecting Chamber 600 mm Internal dia. and 750 mm clear depth having minimum wall and base thickness of chamber as 75 mm, top RCC cover 125 mm thick and 75 mm thick PCC 1:5:10 below RCC base slab, constructed with min. M30 grade cement concrete and Fe-415 grade steel reinforcement, including earthwork in excavation, refilling and disposal of surplus earth all complete of surplus earth designed for IRC Class -A loading including submission of its structural design /drawing duly vetted by Govt. Engg. College.

Providing and laying non-pressure NP2 class (light duty) R.C.C. pipes with collars jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. complete :

Scarifying metalled (water-bound) road surface including disposal of rubbish, lead upto 50m and consolidation of the aggregate received from scarifying with power road roller of 8 to 10 tonne capacity.

Providing ,laying ,spreading & compacting of granular sub-base by providing close graded material, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with front end loader / rotavator at OMC, and compacting with vibratory roller to achieve the desired density, complete as per direction &satisfaction of E/I . The rate includes supply of all material, labour T&P etc reqiured for the proper completion of the work inline with IRC & MORT&H specification .MORT&H 401

Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the material with water at OMC in mechanical mix plant carriage of mixed material by tipper to site, laying in uniform layers with paver in sub base/base course on well prepared surface and compacting with vibratory roller to achieve the desired density as per direction &satisfaction of E/I .The rate includes supply of all material labour T&P etc reqiured for the proper completion of the work inline with IRC & Mort&H specification .MORT&H 406

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