Flood Mitigation by Desilting of Korampallam tank in Korampallam village of Thoothukudi taluk in Thoothukudi District

Earth work in all soil except hard rock requiring blasting and conveying with lead of 7 KMCT deploying earth moving machinery and tippers including benching to ensure bonding between old earth and new earth formation of ground to match with adjoining road level, breaking clods, sectioning, levelling each layer, consolidation, etc., complete complying with standard specification and as directed by the departmental officers.

Earthwork for foundation in hard stiff clay excavating and deposition on bank with initial lead of 10m & initial lift of 2m in Hard stiff clay, stiff black cotton, hard red earth, shales, maurram, gravel, stoney erath and earth mixed with small size boulders SS.20B etc., complete as per relevant standard specification.

Providing and placing in position Plain Cement concrete of M-10 using broken hard granite coarse aggregate (well graded) of nominal maximum size of 40mm to IS specified grading and using crushed stone sand(m-sand) ( to achieve the specified characteristic strength of 10 N / mm² in 28 days ) and mixing the incredients in approved mixer including dewatering of the placement site by baling/pumping and diverting wherever necessary placing in layers and watering, curing, finishing the surface with all leads and lifts etc., complete in all respects so as to attain the profile and strength as specified in the approved drawings and specification etc., complete complying with standard specifications and as directed by the Engineer incharge of work. (Without vibration).

Without Strutting

With Strutting

Above 1m height and upto 1.50m depth below ground level.

Concrete 1.00m depth above BL and upto 4.50m above BL

Providing a shed to accommodate labour during rain and shine in spillway deck bridge as per the following specification. The platform is of total length more than 182m and hence during operation & maintenance a protected shed arrangements are needed to safeguard the workers from being drenched. The main vertical post along the periphery of the platform shall be made of 2 1/2” dia MS pipe with a height of 2200 mm in upstream & downstream side and at an interval of 2500 mm from each other. The rafters shall be made of 2" dia Ms pipe along the width of the platform. The ends shall be bolted connections with vertical stanchions. The Purlin shall be made of 75x40 mm rectangle tubes. They shall be 3 in nos at a equidistant from each other. The ends of Purlin shall be closed. Cleat angles shall be fabricated and appropriate holes shall be drilled in the cleat angle and matching holes in rafter for bolted joints. Colour coated corrugate colour profile sheets shall be provided for roofing . All MS surfaces shall be manually cleaned and applied with 2 coats of aluminium paint over a coat of zinc chromate enamel primer as directed by the departmental officers. The cost includes cost of all materials, process charges like gas cutting, welding, machining, scaffolding charges, labour charges for dismantling, loading, lifting, unloading, transport, erection, labour charges for equipments like crane, chain pulley block, power charges from generator, conveyance to site and clearing them after completion of work including cost of trial operation, etc., complete and as directed by the departmental officers.( Rate as per quotation )