Sewage And Infrastructure Development Corporation Of Goa Limited Tender

bottoms, lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 5km. and Refilling the pipeline trenches with available excavated earth in layers not exceeding 20cm depth consolidating each layer ramming and watering lead upto 5km and all lifts and disposal of surplus earth as directed by the Engineer in charge. Inside size 0.90 x 0.60m and 1.00m deep ( with precast RCC slab covers of concrete grade M25 30T capacity) including fixing with cement concrete 1:2:4 ( 1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size and applying the frame & cover with coal tar.) including Supplying & fixing of S.W. intercepting trap of 6" dia inside the inspection chamber with Making connection of drain or sewer line with existing manhole including breaking and making good the walls, floors with cement concrete 1:2:4 (1 cement: 2 coarse sand: 4 graded stone aggregate 20mm nominal size) 12mm thick cement plaster 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 drains etc. for connecting to HSC manhole including rubble packing etc. complete.

Construction of manhole rectangular in shape including cement concrete 1:3:6 (1 cement:3 coarse sand:6 graded stone aggregate 20mm nominal size) foundation thickness of concrete 20cms and offset 10cms on both sides and first class brick work with bricks class designation 100kg/cm2 in cement mortar 1:3 (1 cement : 3 coarse sand) 23cms thick including providing & fixing CI footrests confirming to IS 5445/69 or revised and whose weight shall not be less than 5.30kgs including fixing in man-hole at 30cm c / c in 20x 20x10cm cement concrete block 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20mm nominal size) and 12mm thick plaster inside and outside with cement mortar 1:3 (1 cement : 3 coarse sand) including adding waterproofing compound of approved brand in cement mortar with a floating coat of neat cement and making channel in cement concrete 1:2:4 (1 cement :2 coarse sand : 4 graded stone aggregate 20m nominal size) neatly finished complete as per standard design.

Inside size 0.60x0.60m and 0.60m deep (with precast RCC slab covers of concrete grade M25 12T capacity) including fixing with cement concrete 1:2:4 ( 1 cement :2 coarse sand : 4 graded stone aggregate 20mm nominal size and applying the frame & cover with coal tar.including Earthwork in excavation by manual means in foundation pipeline trenches drain (not exceeding 1.5m in width or 10 sq. m. on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 5km. and Refilling the pipeline trenches with available excavated earth in layers not exceeding 20cm depth consolidating each layer ramming and watering lead upto 5km and all lifts and disposal of surplus earth as directed by the Engineer in charge including rubble packing etc complete.

Extra/Additional depth of above square/ rectangular manholes at above item no in fractions with 100kg/cm2 brickwork in cement morter 1:3 (1cement:3coarse sand) 23cm thick including providing and fixing CI footrests not weighing less than 5.30kgs incl. fixing in manholes @ 30cmc/c staggered in 20x20x10cm cement concrete blocks 1:3:6(1cement:3coarse sand :6graded stone aggregate 20mm nominal size) 12mm thick plaster inside and outside with cement morter 1:3 (1cement :3coarse sand)including adding water proofing compound of approved brand with a floating coat of neat cement for 0.60 x 0.60m Manholes. including Earthwork in excavation by manual means in foundation pipeline trenches drain (not exceeding 1.5m in width or 10 sq. m. on plan) including dressing of sides and ramming of bottoms, lift upto 1.5 m including getting out the excavated soil and disposal of surplus excavated soil as directed within a lead of 5km.and Refilling the pipeline trenches with available excavated earth in layers not exceeding 20cm depth consolidating each layer ramming and watering lead upto 5kM and all lifts and disposal of surplus earth as directed by the Engineer in charge. .

Dismantling of Chequered tiles flooring including PCC bed and reinstating with Chequered tile Flooring Wherever required in side apartment premises and house premises as required for providing House sewer connections including rubble packing , cement concrete 1:2:4 & disposal of surplus material to lead upto 5km

Demolishing cement concrete 1:3:6 or richer mix including disposal of material within 50m lead.

Rubble packing with hard laterite stone under floors including watering ramming and consolidating etc. in pipeline trenches and other foundations complete.

Centering and shuttering including strutting, propping etc. and removal of formwork for:

a) Foundations footings, bases for columns and mass concrete.

Providing and laying cement concrete 1:2:4(1 cement:2 coarse sand:4 graded granitic a basaltic stone aggregate 20mm nominal size) excluding cost of centering, shuttering and finishing in

a) All work upto plinth level

Raising of buried manholes to the required level wherever required by demolishing reconstruction of taper portion and restoration of road/ground surface to its original condition as per standard specifications and directions and as per standard drawing.

A) For 1.20m dia.manhole raised by 25cms.

B) For 1.50m dia.manhole raised by 25cms.

Opening jammed manhole covers covered with asphalt due to constant plying of heavy vehicles to facilitate releasing of house Sewer connection, cleaning of manholes or sewerline as and when required as directed by Engineer-in-charges.

Identifying of choked in Sewerlines between two consecutive manholes cleaning and removal of all choked materials without excavating for pipes of Sewer and disposal of unserviceable rubbish, dirty materials etc as directed within alead of 3km, from worksite ,and restoration of Sewers to functioning and flushing the Sewers, including necessary dewatering, Sewer cleaning, rodding and scavanging arrangements all complete within 8 hours from written instruction by Engineer-in-charge

Desilting the gritty and silt deposits from manholes including necessary arrangements for lifting the deposits taking out and disposal within 5 K.m.s. as directed by the Engineer-in-charge

Manholes of upto 2.0 M depth

Manholes of upto 3.0 M depth

Plugging of manhole both from upstream and pumping of Sewage from upstream or downstream sides while carrying out rectification of the Sewerlines /removing chokeup with sandbags and removing the same pluggings after completion of the said work and making way for the smooth flow of sewage as directed by Engineer-in-charge.

Flushing and rodding the Sewerlines to clear the chokes and removal of grit and silt so accumulated in manholes due to flushing and rodding outside and disposal to a distance of 5 km including,providing necessary tools, rods, flushing water tankers,ladders,safety equipment etc complete.