Operation and Maintenance of STP North disposal at Golcha (Construction of retaining wall for protection of Clarifer 6B and Clariflocculator at STP North Disposal)

Amount

Excavation in foundation, trenches etc., in earth work in all type of soil such as pick work, jumper work, blasting work Kankar, moorum shingles including decomposed soft and hard rock etc., up to all heights stacking the excavated earth not more 3 meters clear from the edge of excavation and then returning the stacked soil in 15cm. layers, when required into plinth and sides of foundation etc., consolidating each deposited layer by ramming and watering and then disposing of all surplus excavated earth up to including all leads and lifts complete in all respect and as per the direction of Engineer-in-charge.

Stone soling on excavated surface complete as direction of er-in-charge.

Providing and laying cement concrete 1:3:6 ( 1 cement: 3 sand:6 graded stone aggregate 20mm nominal size) and curing complete excluding cost of form work in foundation and plinth including all leads and lifts complete in all respect as per the direction of Engineer-in-charge.

Providing form work with steel plates 3.15mm thick welded with angle iron frame 30x30x5mm so as to give finish including centering, shuttering, strutting and propping etc., with wooden ballies and battens height of propping and centring below supporting floor to ceiling not exceeding 4 metres and removal of the same for insitu reinforced concrete and plain concrete work in: - Foundation, footing, basis of columns etc. and mass concrete. Including all leads and lifts complete in all respects and as per direction of Engineer-in-Charge.

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

Providing mild steel/tor steel reinforcement for RCC work including bending binding and placing in position complete upto level @120kg/m^3 complete as direction of Er-in-charge.

Backfilling behind the retaining wall complete as direction of Er-in-charge.

Providing weep hole of 100 mm dia @1 Sqm Each complete as direction of Er.-in-charge

MANOHAR LAL VERMA

Lalit Thakur

Rakesh Kumar Sharma

kirpa ram

BRIJ MOHAN SUMAN

NEETA RAM

Tej Singh Thakur

SURENDAR HANSRETTA

SANTOSH KUMAR

Munish Jain