Provide additional facilities for 700 tenements project at Water Basin Road scheme under Vada Chennai Valarchi Thittam

0.0m to 3.0m Depth

3.0m to 4.50m Depth

Demolishing Reinforced cement concrete using deploying machineries, including disposal of material / debris and carting within the site etc. Rate shall include for cutting of reinforcement steel of any size and shape with necessary tools and plants, scaffolding, water and power charges, cleaning the surface etc., complete and as directed. The rate shall include for stacking neatly and handing over the reinforcement steel removed from the dismantled concrete.

Dismantling removing the Existing Brick masonary work with Cement Mortar etc., by using required mechinaries including disposal of unserviceable material within 50m lead, labour charges as per directiona of Engineer in charge.

Installation of Vertical Bored cast in situ RCC piles of 300 mm diameter and M-30 grade of concrete in all types of soils, using Standardised Concrete Mix of following grade, with sulphate resistant Cement or OPC/PPC, etc and Crushed Stone Sand and 20mm and down graded HBGS jelly coarse aggregate. The rate includes cost for placing of reinforcement cage in bore hole in correct position, cost of boring to the required depth with Bentonite solution with temprory casing of required length, conveyance of RMC to site and pouring concrete using Tremine pipes, conveyance of all materials to the site including all tools and plants, shifting the plants and equipments from one point to another, excavtion of mud pits for circulation of Bentonite soultion, closing the mud pits to original level and mud removal with initial lead and lift but including dismantling the concrete above the cut off level etc complete as directed by the departmental officers including socketing. The reinforcement cage should be welded properly for lifting. The concrete cubes to be tested as per IS 456-2000. Acceptance criteria by clause 16.1. Frequency of testing as per 15.2.2. Testing to be conducted at both the ends at site as well as RMC plant. Pile driving depth should be decided by the departmental officers at site. The length of pile for payment shall be measured from top of shoe to the bottom of the pile cap. (Cost of Reinforcement provided for Pile and Welding charges shall be measured and Paid separately)

Providing and constructing cast in situ hydraulic bored piles of 500mm diameter in M30 grade concrete using blended cement - slag cement with minimum cement content of 400kg/m³in accordance with the structural engineers drawings and directions, but exculding reinforcement including cost of mobalization of all necessary plants, equipment's like piling rigs, temporary casing of appropriate length for setting out cardinal points and the removal of the same, boring in overburden, using bentonite mud circulation technique or any other method duly through all strata upto the foundation level of piles etc., complete all as approved by the departmental engineer.Further include dewatering, placing concrete by tremie pipe method, disposal of bored material outside the site. Including Chipping carefully cut off portion of piles as required without any damage to the piles and dressing the top and removing all the debris away from the site with out any extra cost as directed including the cost of all tools, plants, conveyance, all labour, lead and lift required etc., Conducting standard penetration test to identify the refusal strata for atleast 1 pile in group and atleast 25% of piles, comparing with refusal strata as indentified in soil report and providing socketting into refusal strata by 1.00mt or into hard rock by 100% dia of the pile. (Length of pile for payment shall be measured up to bottom of pile cap).

Earth work open excavation in all soils and sub-soils and to full depth as may be directed except in rock requiring blasting inclusive of shoring shuttering, bailing out water wherever necessary and depositing the excavated earth with a lead of 10 mts. within the compound in places shown by the departmental officers and clearing and levelling the site, etc., complete complying with standard specification.

Providing Sheet piling work for above 25N value (hard strata)using a 12" hard rock bored piling upto a depth of 8m drill using a pneumatic drilling machine. The sheet pilling works shall using interlocking sheets of steel to obtain a continuous barrier in the ground. The main application of sheet pile is in retaining walls and cofferdams erected for the purpose of excavation to enable permanent works to proceed. Metal sheet piling material shall be conforming to IS -2314 or equivalent ASTM standards. The interlocks of sheet piling shall be free-sliding, provide a swing angle suitable for the intended installation but not less than 5 degrees when interlocked and maintain continuous interlocking when installed. Sheet piling [including special fabricated sections] shall be [full-length] sections of the dimensions as shown in the drawing. Sheet piling shall be provided with standard pulling holes Metal plates, shapes, bolts, nuts, rivets, and other appurtenant fabrication and installation materials shall conform to manufacturer's standards and to the requirements.

Carting away surplus excavated earth available with in the campus, is to be carted to the required locations within the campus. The rate shall include loading into the tipper/ lorry, transporting and unloading, leveling, breaking of clods, consolidating and sectioning the earth scooped by bulldozers grading etc.,complete with all respects complying with relevant standard specification, as directed by the Engineer-in-charge. Rate to include materials, loading, unloading, transportation, plant and machinery, hire and fuel charges for tools and plants and other incidental charges, royalties, seignorage and taking statutory approvals as necessary to carry out the work as complete with all respects complying with relevant standard specification, as directed by the Engineer-in-charge.