Construction of external compound wall external storm water trench and road works etc for expansion project of chennai trade centre

Boring, providing and installation bored cast-in-situ reinforced cement concrete piles of grade M-30 of specified 450mm diameter and length below the pile cap, to carry a safe working load not less than specified, excluding the cost of steel reinforcement but including the cost of boring with bentonite solution and Cage Lowering, Casting, temporary casing of appropriate length for setting out and removal of same and the length of the pile to be embedded in the pile cap etc. by percussion drilling using Direct mud circulation (DMC) or Bailer and chisel technique by tripod and mechanical Winch Machine all complete, including removal of excavated earth with all its lifts and leads (length of pile for payment shall be measured up to bottom of pile cap).Note: Truck Mounted rotary/TMR/Tubewell boring machine shall not be used.

Vertical load testing for 450mm dia pile upto 50TN capacity in accordance with IS 2911 (Part IV) including installation of loading platform by Kentledge/Anchor piles method and preparation of pile head or construction of test cap and dismantling of test cap after test etc. complete as per specification & the direction of Engineer incharge.(intial load test)

Lateral load testing for 450mm dia upto 50TN capacity of in accordance with IS Code of practice IS : 2911 (Part IV) for determining safe allowable lateral load on pile :

Integrity testing of Pile using Low Strain/ Sonic Integrity Test/ Sonic Echo Test method in accordance with IS 14893 including surface preparation of pile top by removing soil, mud, dust & chipping lean concrete lumps etc. and use of computerised equipment and high skill trained personal for conducting the test & submission of results, all complete as per direction of Engineer-in-charge.

Providing TMT Bars Fe-500D grade confirming to IS 1786, transporting to site, storing, de-coiling (if required), straightening, cutting, bending, spirally hooping, bundling and placing, in position reinforcement bars, to correct shape and size as per detailed drawings, specifications, preparing and getting approved bar-bending schedules for all reinforced concrete work such as Pile, walls, columns / stub columns, beams, slabs, staircase etc.; with correct size of heavy duty PVC / concrete (of same grade of concrete) cover blocks and galvanized binding wire of 18 gauge; required dewatering, provide required labour and machines / equipment / tools / tackles for handling, shifting, bending, binding, etc. The measurement shall be as per IS 1200. The item shall include cost of concrete cover blocks, binding wire, all complete to the satisfaction of the PMC/Employer at all depths, height, lift & leads.

Excavation in all kinds of soil, wet or dry (such as clay, Silty Clay, Sandy clay with Medium/High Plasticity and Soft disintegrated rock etc.,) in loose and slushy condition, including demolition of any existing concrete portion with suitable mechanical excavators like Poclain, JCB etc., and manually wherever required, to the required level for foundations, trenches, rafts, plinths, area levelling, etc., to required depth from existing ground level including disposing off surplus excavated material within the site and levelling as per directed by the Engineer-in charge. bailing/pumping out water to keep the site dry at all times until completion of backfilling; making temporary stepping / sloping, sectioning, trimming, dressing of sides, levelling or grading, cleaning, removing and excavating loose pockets etc., all complete to all depths, to the satisfaction of the Engineer-in-charge. All pits shall be properly barricaded at any point of time.Upto 1.5m only.

Supplying, Filling with selected, suitable excavated earth (excluding rock) in layers each not exceeding 150mm in depth, breaking clods, watering, compacting each layer with vibratory compactor and at inaccessible places with wooden/steel rammers to achieve 95% proctor density at optimum moisture content; dressing up embankments; if required, bailing/pumping out of water to keep site dry while back filling; costs includes transportation of all materials, labour, machinery etc. complete as per direction and entire satisfaction to the Enigineer-in-charge

Providing, machine mixing and laying Plain cement concrete (PCC) M10 grade of required thickness for foundation, rafts, plinth beams, levelling course and all locations, etc. (minimum cementitious content shall be as specified in the IS Code and as approved); including compacting, curing, required shuttering and its removal, dewatering where required and vibrating, cleaning, preparing surfaces, junctions, etc.; complete at all depths and leads as per the drawing and to entire satisfaction of the Engineer-in-charge (minimum Cement content 220 kg / cum)

Providing, transporting, pumping and laying batched design mixed, controlled concrete of M30 grade (as specified in the Structural drawings) conforming to (IS 456) with minimum cement content and maximum water cement ratio as per IS or as specified by Structural Consultant including using approved quality admixtures and placed either with pump/manual/lift for following grades of concrete including compacting, vibrating, curing and protecting against excess etc. complete at all lead, lift & heights as per the drawing and to entire satisfaction of the Engineer-in-charge. (minimum Cement content 350 kg / cum)

Footing Works: Supplying and erecting steel / 12mm Plastic coated, marine resistant waterproof ply centering including necessary supports for plane surfaces for Reinforced Cement Concrete works such as column footings, column pedestals, plinth beams, grade beams, staircase steps, etc. which require only nominal strutting using mild steel sheets of size 90cm x 60cm and 10 BG stiffened with welded mild steel angles of size 25mm x 25mm x 3 mm for boarding, laid over silver oak joists of size 10cm x 6.5cm spaced at about 75cm centre to centre or at suitable intervals etc. complete in all floors complying with standard specifcation. Providing, fabricating, erecting form work and deshuttering at all levels and places wherever needed/specified as per drawing including striking with 12mm Plastic coated, marine resistant waterproof ply with adjustable steel props of acceptable Staging system and with sufficient bracing as approved by consultant. Cost to include designing of proper form work and staging system to suit the requirements, Submission of design calculations and shop drawings for approval, sealing the joints with heavy duty brown self adhesive tape, aligning to line and levels including M.S. Ties, PVC Spacer, Providing openings / cutouts / pockets, applying deshuttering chemical, Deshuttering as approved by the consultant etc., complete at all levels, double floor heights and profiles.