Construction of Grade wall across Pandavaiyar river at LS 120.470 km in Kottarakudi Village of Tiruvarur Taluk of Tiruvarur District

Earth work open excavating for foundation in all kinds of soils and sub soils and depositing on bank with initial lead of 10 m and initial lift of 2m except hard rock requiring blasting to full depth as may be directed inclusive of shoring strutting, bailing out water wherever necessary and refilling the sides of foundation with excavated earth as per standard specification and as directed by the departmental officers.

Upto 2m from Bed level intial lift

Additional 1m lift or part thereof over the intial lift

Earth work excavating for foundation in all kinds of soils and sub soils depositing on bank with initial lead of 10 m and initial lift of 2 m except hard rock requiring blasting to full depth as may be directed inclusive of shoring strutting, bailing out water wherever necessary and refilling the sides of foundation with excavated earth as per standard specification and as directed by the departmental officers.

Providing and placing Plain Cement Concrete M10 grade using crushed broken hard granite coarse aggregate (well graded) of nominal maximum size of 40mm to I.S specified grading (To achieve the specified characteristic strength of 10N/mm2 in 28 days) and mixing the ingredients in approved mixer including dewatering of the placement site by bailing / pumping and diverting wherever necessary placing in layers and vibrating, water curing, finishing the surface with all leads and lifts etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and erecting steel centering for sides and soffits without strutting for plain surface with all cross bracings using Mild steel sheets of size 90cm x 60cm. Thickness of B.G. 10 stiffened with welded Mild steel angles of size 25 x 25 x 3mm for boarding laid over country wood joists of size 10cm x 6.5cm spaced at 90cm. Center to center etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and erecting steel centering for sides and soffits with strutting upto 3m height for plain surface with all cross bracings using Mild steel sheets of size 90cm x 60cm. Thickness of B.G. 10 stiffened with welded Mild steel angles of size 25 x 25 x 3mm for boarding. laid over country wood joists of size 10cm x 6.5cm spaced at 90cm. Center to center and supported by Casuarina props of 10 to 13cm dia. (spaced at 75cm) center to center etc., complete complying with standard specification and as directed by the departmental officers.

Upto 3.00 m height

Above 3.00m to 6.00m height

Providing and placing Plain Cement Concrete M15 grade using crushed broken hard granite coarse aggregate (well graded) of nominal maximum size of 40% of 20mm and 60% of 40mm down graded to I.S specified grading (To achieve the specified characteristic strength of 15N/mm2 in 28 days) and mixing the ingredients in approved mixer of the placement site by bailing / pumping and diverting wherever necessary placing in layers and vibrating, water curing, finishing the surface with all leads and lifts etc., complete in all respects so as to attain the profile and strength specified in the approved drawing and specifications, etc., complete complying with standard specification and as directed by the departmental officers.

Above Ground Level upto 4.50 m height

Below Ground Level upto 1.50 m depth

Below Ground Level upto 1.50 m to 4.50m depth

Providing and placing Plain Cement Concrete M15 grade using crushed broken hard granite coarse aggregate (well graded) of nominal maximum size of 20mm down graded to I.S specified grading (To achieve the specified characteristic strength of 15N/mm2 in 28 days) and mixing the ingredients in approved mixer of the placement site by bailing / pumping and diverting wherever necessary placing in layers and vibrating, water curing, finishing the surface with all leads and lifts etc., complete in all respects so as to attain the profile and strength specified in the approved drawing and specifications, etc., complete complying with standard specification and as directed by the departmental officers.

Below Ground Level up to 1.50m depth

Below Ground Level upto 1.50 m to 4.50m depth

Providing and placing Reinforced Cement Concrete M20 grade using crushed broken hard granite coarse aggregate (well graded) of nominal maximum size of 20mm downgraded to I.S specified grading (To achieve the specified characteristic strength of 20N/mm2 in 28 days) and mixing the ingredients in approved mixer of the placement site by bailing / pumping and diverting wherever necessary placing in layers and vibrating, water curing, finishing the surface with all leads and lifts etc., complete in all respects so as to attain the profile and strength specified in the approved drawing and specifications, etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and fabrication and placing in position of Mild Steel / Ribbed Tor steel for all RCC works including cost of steel and G.I. binding wire etc., complete complying with standard specification and as directed by the departmental officers.

Manufacturing, supplying and fixing of cement concrete blocks of size 1.50x1.50x0.9 M in M15 using 40mm and 20mm hard broken granite stone jelly including cost of moulding charges, casting of slabs, finishing, curing and fixing in position of charges etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and filling of Gravel in between the gap of CC Block with 75mm thick, etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and filling in foundation below CC block 40 mm thick graded Inverted Filter provided in two or more layers (ie., 12mm, 20mm, 40mm and 50mm,size metal etc., complete complying with standard specification as directed by the departmental officers.

Supplying and filling loose boulders of size more than 300mm and weight more than 40kg in launching apron including conveyance, cost of materials etc., complete complying with standard specification and as directed by the departmental officers.

Rough stone dry packing using new rough stones for talus apron and revetments etc., including cost of Rough stones, conveyance Labour charges etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and fixing of Expansion Board (water proof) 12mm thick including cost of required all accessories etc.,complete complying with standard specification as directed by the departmental officers.

Supplying and fixing in position of seepage pipes of 75 mm dia PVC pipe having working pressure of 6 Kg/cm2 required lengths with required filter media (excluding the cost of filter media) for abutment and wings including cost and conveyance of all materials to work site and labour charges for fixing etc.,complete complying with standard specification as directed by the departmental officers.

Providing fillter media arrangements to the weep holes in the rear side of retaining wall for a size of 45cm x 45cm x 60 cm and filling with 20 mm metal of 30 cm thick in Ist layer and 40mm metal of 30 cm in II nd layer the rate is including cost of metals etc complete complying with standard specification as directed by the departmental officers

Earthwork in all soils except hard rock requiring blasting and conveying for formation of bund with a lead of 5Km (MR) deploying earth moving machinery and tippers including benching, formation of bunds, breaking clods, sectioning, compaction by power roller with watering and consolidation in layers of not more than 15cm thick etc., complete complying with standard specification and as directed by the departmental officers.

Dewatering using 5 HP Diesel Engine pumpset including Hire charges,cost of Diesel Engine oil,Pump operator,labour charges, conveyance of pumpset and fuel to site and back,loading ,unloading and any other incidential charges etc.,complete complying with standard specification and as directed by the departmental officers.

Fabricating supplying and fixing of shutter Groove Angle made up of 65 x 65 x 6 mm Mild Steel angle for required height including welding hold fast of size 25 x 25 x 6 mm Mild steel angle 2 Nos on both sides, conveying and leading the groove angle to the vents. Fixing the angle to the grooves in proper alignment including dismantling the existing damaged groove angles, conveying and stacking at section store. The Groove angle should be painted with two coats of Anticorrosive black paint over one coat of red oxide primer. The rate including cost of materials, consumables, labours, charges for all fabricating and hoisting equipments, conveyance, petty civil works and warranty for 5 years etc.,complete, complying with standard specification and as directed by the departmental officers.

Fabricating, Supplying and erection of Screw gearing steel shutters of size above 1.00 m and upto 2.00m width consist of skin plate made out of 8mm thick mild steel plate and horizontally stiffened with 100x50mm mild steel channel at an interval not more than 0.50m and vertical stiffeners made out of same section at an interval not more than 0.60m and provided with 8mm thick mild steel gusset plate of required size on both sides fastened with rust free bolts and nuts etc. Conveying the fabricated shutter by using lorries including loading, unloading and leading the shutter to the vent. Dismantling the eroded shutter and shuttering arrangements by using necessary gas cutting equipment. Erecting the new shutter and the shuttering arrangements in the vent in proper position by using necessary hoisting equipment. The shutter shall be painted with two coats of Anticorrosive black paint over one coat of Red Oxide Primer. The rate including cost of materials consumables, labours power charges, conveyance charges for all equipment required conveying the dismantled materials to the section stores, cost of petty civil works, trial operation of shutter and warranty for 5 years etc.,complete complying with standard specification and as directed by the departmental officers.

Fabricating, Supplying and fixing of Top Beam made up of 150x75mm (ISMB 150) duly drilled to suit the Head Set Assembly with required bed bolt made out of 25mm mild steel round rod duly threaded with suitable anchorage arrangements to a height of 0.60m with necessary Fish plate made out of 12mm mild steel plate of size 0.30x 0.15m 2 Nos with required holes.Conveying and leading the top beam arrangements to the work site. Fixing the top beam arrangements at the top of the vent in correct position including dismantling the existing eroded top beam, conveying and stacking and the section stores. The top beam should be painted with two coats of AC black paint over one coat of Red Oxide primer. The Rate including cost of materials, labours, charges for all fabricating and hoisting equipments, cost of petty civil works conveyance charges for labours and materials and warranty for 5 years etc.., complete complying with standard specification and as directed by the departmental officers.

Fabricating, supplying and fixing of 63mm dia Screw Rod made up of Mild Steel duly machined and fully threaded to suit the Head set Assembly and provided with required holes. Conveying and leading the screw rod to the worksite. Fixing the screw rod to the shutter gusset plate with required bolt and nut in proper alignment to the head set including dismantling the existing damaged screw rod,conveying and stacking at section store. The Screw rod should be painted with two coats of AC black paint over one coat of red oxide primer. The rate including cost of materials, labours, charges for all fabricating and hoisting equipments, conveyance charges for labours and materials and warranty for 5 years etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and fixing of Head Set Assembly Medium duty with hexagonal nut (approximate 70 Kg) made up of cast iron including moulding, machining and the hexagonal nut threaded to suit the Screw Rod provided with thrust bearings for smooth operation. Conveying and leading the head set assembly to the work site. Fixing the head set assembly to the top beam by using required rust free bolts bolts and nuts in proper alignment including dismantling the existing damaged Head set assembly, conveying and stacking at section store. The Head set assembly supplied with operating key and the both should be painted with two coats of Anticorrosive black paint over one coat of red oxide primer. The rate including cost of materials, labours, charges for wooden pattern, moulding and charges for labours and materials and warranty for 5 years etc., complete complying with standard specification and as directed by the departmental officers.

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