Tamil Nadu Housing Board Tender

42 HIG MSB FLATS

Installation of vertical cast in situ bored piles of 600 mm diametre using reinforced cement concrete Design Mix M30 Grade using 20 mm gauge hard broken stone jelly by settinng the bored cast in situ pile equipments with all accessories and tools at each locations based on the sequence of operations as directed by the departmental officer,boring for the piles from ground level in all soils to the required depth below cut off level to carry a safe working load not less than specified, by Direct Mud Circulation Method (using bentonite clay of required density) inclusive of pile accessories, temporary casing pipe,bentonite solution of 10% of concrete with required density, mobilisation, transferring, instalation of pile driving accessories from one location to another,pile concreting inside of drime method pipe fitting, including removal of mud and slurry away from the scheme site but excluding the cost of steel and fabrication reinforcement grills but including Bentonite solution machinery charges labour charges etc., all complete, complying with relevent standard specification and as dircted by the departmental officers. (pile shall be measured from the top of the shoe to the bottom of the pile cap) Design Mix M30 Grade concrete should be prepared with ordinary Portland Cement with water cement ratio not exceeding 0.45 including the use of Plasticizer of required Grade and Hard Granite Stone Jelly of 20mm size and downgraded as per requirement. a) conducting routine pile test for one and half times the safe load for every 1 in 100 piles, as per IS code and as directed by the Departmental Officers and b) Charge for chipping of pile wherever necessary to the required depth. c) Concrete for all piling work should be of Design Mix M30 grade with minimum cement content of 400Kg per Cubic Metre.

Earthwork excavation in sand silt or other loose soil wet sand or silt, light black cotton, sandy loam soil and to the required depth as may be directed except in hard rock requiring blasting inclusive of shoring strutting and baling out water wherever necessary, depositing the surplus earth in places shown clearing and levelling the site with an initial lead of 10 metre and lifts as specified hereunder etc., all complete in all respects complying with relevant standard specification excluding refilling ( OPEN EXCAVATION)