19/EEC/BSNL/CD/BGL/2023-2024

Amount

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)

Dismantling of flexible pavement (bituminous courses) by mechanical means and disposal of dismantled material up to a lead of 1 kilometre, as per direction of Engineer-in-charge.

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm 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 50 m. (Note This item includes excavating SW drain line/PCC etc. from the treench)

All kinds of soil.

Ordinary rock

Extra rates for quantities of Earth work in excavation executed: (Note- The extra percentage rate is applicable in respect of each item but limited to quantities of work executed in these difficult conditions. The unit, namely, metre depth, to be considered for payment,shall be the depth measured from the sub soil water level up to the centre of gravity of the qty executed in difficult conditions. The depth shall be reckoned correct to 0.10 m, 0.05 m or more shall be taken as 0.10 m and less than 0.05 m ignored.

In or under water and/or liquid mud, including pumping out water as required for All kinds of soil.

In or under foul position, including pumping out water as required for All kinds of soil.

In or under water and/or liquid mud, including pumping out water as required for Ordinary rock (Note: item no. 2.24.1 of DSR applicable to all kinds of excavation)

In or under foul position, including pumping out water as required for Ordinary rock (Note: item no. 2.24.1 of DSR applicable to all kinds of excavation)

Cutting tree roots encountered in foundation trench to receive bed concrete using carpenters saw, power cutter saw and axe wherever required complete as directed and disposal of debris to a lead of 50m.

Roots in trench of area upto 1.50sqm

Dismantling of manhole including R.C.C. top slab, C.I. cover with frame, including stacking of useful materials near the site and disposal of unserviceable materials within 50 m lead as per direction of Engineer-in-charge:

Rectangular manhole 90x80 cm and 45 cm deep

Rectangular manhole 120x90 cm and 90 cm deep

Extra for depth of manholes dismantled

Rectangular manhole 90x80 cm and 45 cm deep

Rectangular manhole 120x90 cm and 90 cm deep

Cleaning of chocked sewer line by diesel running vehicle mounting hydraulic operated high pressure suction cum jetting sewer cleaning machine fitted with pump having 4000 litres suction capacity and 6000 litres water jetting tank capacity including skilled operator, supervising engineer etc. for cleaning and partial desilting of manholes and dechocking of sewer lines. Dechocking and flushing of sewer line from one manhole to another by high pressure jetting system of 2200 PSI for sewer line from 150mm dia upto 300mm

Dewatering sewage water entering in excavated trenches of manholes/pipe lines with 1HP submersible sewage pump and HDPE/PVC hose pipe up to 50m for discharge of sewage water to nearby municipal drain ( rate shall be quoted for hire, carriage & operation charges of pump & hose pipe)

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift up to 1.5 m.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

1:4:8 (1 Cement : 4 coarse sand(zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources).

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

Foundations, footings, bases for columns

Providing and laying under ground low density foamed cellular wall PVC pipes and couplers conforming to IS:16098 (PART-1) including fixing pipe ends with solvent based cement adhesive in proper alignment complete as directed. (Note: The joint shall be tested for leakage before covering with infill material over the pipes)

110mm diameter PVC pipe of SN4 class, self fit type

160mm diameter PVC pipe of SN4 class, self fit type

Constructing brick masonry manhole in cement mortar 1:4 ( 1 cement : 4 coarse sand ) with R.C.C. top slab with 1:1.5:3 mix (1 cement : 1.5 coarse sand (zone-III) : 3 graded stone aggregate 20 mm nominal size), foundation concrete 1:4:8 mix (1 cement : 4 coarse sand (zone-III) : 8 graded stone aggregate 40 mm nominal size), inside plastering 12 mm thick with cement mortar 1:3 (1 cement : 3 coarse sand) finished with floating coat of neat cement and making channels in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) finished with a floating coat of neat cement complete as per standard design :

Inside size 90x80 cm and 45 cm deep including C.I. cover with frame (light duty) 455x610 mm internal dimensions, total weight of cover and frame to be not less than 38 kg (weight of cover 23 kg and weight of frame 15 kg) : With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Inside size 120x90 cm and 90 cm deep including C.I. cover with frame (medium duty) 500 mm internal diameter, total weight of cover and frame to be not less than 116 kg (weight of cover 58 kg and weight of frame 58 kg): With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Extra for depth for manholes :

Size 90x80 cm With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Size 120x90 cm With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Providing and fixing square-mouth S.W. gully trap class SP-1 complete with C.I. grating brick masonry chamber with water tight C.I. cover with frame of 300 x300 mm size (inside) the weight of cover to be not less than 4.50 kg and frame to be not less than 2.70 kg as per standard design:

100x100 mm size P type With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

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 100 to 250 mm diameter

12 mm cement plaster of mix :

1:4 (1 cement: 4 fine sand)

Cement concrete pavement with 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size), including finishing complete.

Dismantling C.I. pipes including excavation and refilling trenches after taking out the pipes, manually/ by mechanical means breaking lead caulked joints, melting of lead and making into blocks including stacking of pipes & lead at site within 50 metre lead as per direction of Engineer-in-charge:

Up to 150 mm diameter

Dismantling G.I. pipes (external work) including excavation and refilling trenches after taking out the pipes, manually/ by mechanical means including stacking of pipes within 50 metres lead as per direction of Engineer-in-charge :

Above 40 mm nominal bore

Providing and fixing on wall face unplasticised Rigid PVC SWR pipes conforming to IS : 13592 Type-B, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion

a) 100 mm dia pipe

b) 75 to 80 mm dia pipe

Providing and fixing rigid SWR UPVC fittings for PVC pipes of approved quality as directed by Engineer-in-charge.

PVC Plain bend 75mm dia

PVC Plain bend 110mm dia

PVC TEE with door-110X110mm

PVC TEE with door-75x75mm

PVC collar/Coupler -110mm

PVC collar/Coupler -75mm

Providing suspended platform (Zula) arrangement for climbing/suspending of worker at different floor levels in service shaft with safety belt, harness and ropes for dismantling pipelines (payment shall be made as one time job for dismantling all plumbing and drain pipes inside service shaft up to 40m lift)

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and testing of joints complete as per direction of Engineer in Charge. Internal work - Exposed on wall

20 mm nominal dia Pipes

25 mm nominal dia Pipes

40 mm nominal dia Pipes

50 mm nominal dia Pipes

Providing and fixing CPVC gate/ball valve with handle of approved make (astral/ashirwad or equivalent)

25 mm nominal bore

40 mm nominal bore

50 mm nominal bore

Supplying & fixing CPVC fittings of following size etc

Union 25mm nominal bore

Union 40 mm nominal bore

Making holes upto 40mm dia. in brick masonary walls with power operated drill machine for all lift including removing debris and dust etc. wrapping a foam sheet on PVC pipe embedded in brick wall applying bitumastic primer etc. complete as directed by engineer-in charge.

Making holes upto 250mm dia. in brick masonary walls with power operated drill machine for all lift including removing debris and dust etc. wrapping a foam sheet on PVC pipe embedded in brick wall applying bitumastic primer etc. complete as directed by engineer-in charge.

Steel work welded in built up sections/ framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required.

In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works

Providing and fixing hand rail of approved size by welding etc. to steel ladder railing, balcony railing, staircase railing and similar works, including applying priming coat of approved steel primer.

G.I. pipes

P/F 2mm thick GI slotted wall bracket for fixing of PVC pipes in shaft

600x50mm bracket

300x50mm bracket

200x50mm bracket

P/F GI saddle (U-clamp) with nuts and washers of matching size for fixing of PVC pipes over wall brackets

110mmx10mm

80mmx10mm

Making connection of CPVC distribution branch with G.I. main of following sizes by providing and fixing tee, threading the pipe including cutting and fixing with CPVC solvent cement etc. complete :

25 to 40 mm nominal bore

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Road cutting charges for getting permission from BBMP for drainage line construction on BBMP pavement including processing required documents etc. all complete as directed by the Engineer in charge.

Credit to the agency for dismantled unserviceable material recovered under the relevant agreement items

Cast iron & GI pipes

K V DEVARAJ

CHOLA SANKAR RAJU CONTRACTOR