Rehabilitation of Right Bank Main Canal offtaking from Amaravathi River from LS 7.300 KM to 9.900 KM in Karur Taluk of Karur District

Amount

Clearing the scrub jungle and destroying the same effectively, complete complying with standard specification and as directed by the departmental officers.

Cleaning the Juliflora jungle with uprooting and destroying the same effecftively, complete complying with standard specification and as directed by the departmental officers.

Dismantling Plain Cement Concrete including clearing away from the specified area for any thickness of structure specified including all leads and lifts as per standard specification and as directed by the engineer in charge of the work

Dismantling old R.R masonry including clearing away from the specified area and carefully stacking materials useful for reuse for any thickness specified and depositing the remaining materials at places shown and directed by the departmental officers.

Earth work excavating and depositing on banks with an initial lead of 10m and initial lift of 2m in hard stiff clay, stiff block cotton , hard red earth,shales,murram, gavel stoney earth and earth mixed with small size boulders complying with standard specification and as directed by the departmental officers. (Open excavation)

Earth work excavation for foundation and depositing on banks with initial lead of 10m and initial lift of 2m sand, silt (or) loose soil , wet sand or silt not under water light block cotton soil, sandy loom and ordinary soil including excavated earth in hard stiff clay, stiff black cotton, hard red earth, shales, murram,gravel, stoney earth & earth mixed with small size boulders & soft disintegrated rock, laterite, soft rock or kankar, not requiring blasting for foundation including refilling the sides of foundation with excavated earth, shoring, strutting and bailing out water wherever necessary, well rammed, consolidated and depositing the surplus earth in places as shown by the departmental officers and clearing, levelling the site etc., complete complying with standard specification and as directed by the departmental officers. (Narrow excavation)

Earthwork in all soils except hard rock requiring blasting and conveying for formation of bund with the leads of 0-100m deploying earth moving machineries and tippers including benching ,formation of bunds, breaking clods, sectioning etc., Complete complying with standard specification as directed by the Engineer in charge ( For existing bund top portion. - For Jeep Track Purpose) with a lead of 5KM

Earthwork in all soils except hard rock requiring blasting and conveying for formation of bund with the leads 0-100m deploying earth moving machineries and tippers including benching ,formation of bunds, breaking clods, sectioning etc., Complete complying with standard specification as directed by the Engineer in charge for existing bund top portion(Bund formation) with a lead of 3 KM

Supplying and filling with Msand of each layer not more than 15cm thick including all leads and lifts consolidation etc., complete complying with standard specification and as directed by the departmental officers.

Providing and laying Plain Cement concrete of M10 grade (Design Mix) using 40mm HBGS jelly (well graded) confirming to IS specified grading (to produce concrete of the specified grading and characteristic strength of 10N/mm2 at 28 days) and mixing the ingredients by mixer machine including dewatering by bailing/pumping wherever necessary laying the concrete in layers and in bays with all leads and lifts,compacting and finishing the surface, watering, curing etc.,complete complying with standard specifications and as directed by the departmental officers.

Providing and Laying in position, Plain Cement Concrete of M 15 grade (Design Mix) with well graded aggregates and the maximum nominal size of HBGS jelly of 40mm and down graded (60% 40mm and 40% of 20mm) confirming to IS specified grading and mixing the ingredients by mixer machine ( to produce concrete of the specified grading and characteristic strength of 15N/mm2 at 28 days) including dewatering by bailing/ pumping wherever necessary laying the concrete in layers and in bays with all leads and lifts, vibrating, compacting, and finishing the surface, watering, curing, for various depth and height below and above ground level so as to attain the profile and strength specified in the drawings. complete complying with standard specifications and as directed by the departmental officers.

Providing and Laying in position, Plain Cement concrete of M 15 grade (Design Mix) with well graded aggregates and the maximum nominal size of HBGS jelly of 20mm and confirming to IS specified grading and mixing the ingredients by mixer machine ( to produce concrete of the specified characteristic strength of 15 N/mm2 at 28 days) including dewatering by bailing/pumping wherever necessary laying the concrete in layers and in bays with all leads and lifts, vibrating, compacting and finishing the surface watering, curing for various depth and height below and above ground level so as to attain the profile and strength specified in the drawings complete complying with standard specifications and as directed by the departmental officers.

Providing and laying in position, Standardised Reinforced Cement Concrete Mix M-20 Grade in accordance with IS:456-2000,using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement content of 325 kg/m3 and maximum water cement ratio of 0.55, including admixture ( plasticiser / super plasticiser) in recommended proportions as per IS:9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability with about ( 5.0 cu.m) 7730 kg of 20mm machine crushed stone jelly and with about (3.3 cu.m) 5156kg. of 10-12mm machine crushed stone jelly and with about (4.79 cu.m) 7670kg of M.sand, but excluding cost of reinforcement grill and fabricating charges, centering and shuttering and also including laying, vibrating with mechanical vibrators,finishing,curing, etc., complete complying with standard specification and as directed by the departmental officers. The coarse and fine aggregates to be used should comply with the requirement of IS standards.( No separate payment will be made by the Department for the excess usage of materials)

Providing steel centering for cement concrete block, column, footing, pedestal, plinth beam, grade beam etc., which require nominal strutting etc., using MS sheets 10 gauge thick of size 90cm x 60cm stiffened with MS angle of size 25mm x 25mm x 3mm laid over silver oak joists of size 10cm x 6.5cm spaced at 90cm c/c duly supported and removing the centering and shuttering after specified period without damaging the concrete laid complete complying with standard specification and as directed by the departmental officers.Scaffolding and centering charges for the structural components is including the cost and conveyance of all material to the site including all labour charges and incidental charges etc., complete complying with standard specifications and as directed by the Engineer in charge. (Nominal strutting)

Supplying and erecting centering for sides and soffits including necessary supports and strutting upto 3.29m height for vertical/sloped surface as detailed below with all cross bracings using mild steel sheets of size 90cm x 60cm and 10BG stiffened with welded mild steel angle of size (25x25x3)mm laid over silver oak joists of size 10x6.5cm spaced at about 90cm c/c and supported by casurina props of 10cm to 13cm dia spaced at not more than 75cm c/c removing the centering and strutting after specified period with out damaging the concrete laid etc.,complete complying with standard specifications and as directed by departmental officers.Scaffolding and centering charges for the structural components including the cost and conveyance of all materials to the site including all labour charges and incidental charges etc., complete complying with standard specifications and as directed by the departmental officers. (for Verical surface)

Supply and fabricating of steel required for all RCC works involved in the schedule including cost of steel cost of fabrication, labour charges for cleaning the rods, straightening, cutting, bending, tying grills including over lapping to the required length wherever necessary and placing reinforcement in position as specified in the drawing including cost of binding wire provision for space bar, cover blocks and all other incidental charges etc. directed by the departmental oficer.

Providing and filling with sealant material in transverse contraction joint after thoroughly cleaning all the joints @ 2.70m c/c and finishing the surface to match with lining face with contractors own material as per technical specifications as directed by the Engineer incharge of the work. (as per drawing of the transverse contraction joint enclosed)

Providing & fixing pre-cast cylindrical porous plug of 75 mm Dia and 300mm in length in porous concrete CC 1:0:4, each in the lead at 30m c/c in filter having size 45 x 45 x 45cm sand and 30 x 30 x 30cm metal including excavation, separators, filter material complying with standard specification and as directed by the departmental officers.

Supplying and fixing PVC pipe of size 75mm dia with ISI standards ( 6kgs/cm2) for providing pressure relief holes (Weep holes) etc., including all the labour charges for fixing etc., complete complying with standard specification and as directed by the Departmental officer.

Providing Filter media arrangements to the pressure relief holes in the rear side of retaining wall for a size of 45cmx45cmx60cm and filling with 20mm metal of 30cm thick in Ist layer and 40mm metal of 30cm thick in IInd layer, the rate is including cost of metals etc complete complying with standard specification and as directed by the departmental officers (Vide CERNo.29CE/2022-2023)

Suppying and fixing PVC water bar 150mm width with single bulb in postion including cost and conveyance of all materials to the work site complete complying with standard specification and as directed by the Departmental officer.

Supplying and fixing Bitumen felt 15mm thick pad for joints in the wall at 25m interval including all labour charges for fixing etc.,complete complying with standard specification and as directed by the departmental officers.

Providing Random Rubble masonry in cement mortar 1:4 (one cement and four M-sand) using old rubble stones and new bond stones including simultaneous pointing the exposed surfaces with same mortar and all incidental charges such as bailing out of water, curing, finishing complete complying with standard specifications and as directed by the departmental officers. -Old Stone

Providing Rough stone dry packing using old rough stone for revetment including spails for filling and wedging complete complying with standard specification and as directed by the department officers.

Supplying and laying of Launching apron revetment with loose boulders (jeddy stones) of each size greater than 300mm and weight more than 40kg including cost of labour etc., complete complying with standard specification and as directed by the departmental officers.

Supplying and Fixing of screw gearing shutters of following size 0.55 x 1.50 made out of 6mm thick mild steel out of steel plates welded on single size mild steel angle frame made out of ISA 65x65x6mm M.S angles with groove stiffeners ISA 65x65x6mm along with the MS Gusset plate of size 0.30x0.30m 6mm thick and M.S screw rod of 50mm diameter threaded for required lengths providing 2Nos ISMB 100mmx75mmx7.2mm M.G I section for rod platform beam with necessary clamps anchor plates and anchor bolts, guide channels on either required side ISMC 75x40x7.3mm as required provided with suitable hold fasts to accommodate the shutter in operations and providing capstain head assembly with base plates and threaded inside to suit screw gearing rod with hexagonal nut with necessary special of labour charges and fixing in correct alignment civil work and position and including two coats of anticorrosive black paint over one coat of red oxide primer including all taxes etc., complete complying with standard specification as directed by the Engineer in charges of works .

Supplying and Fixing of screw gearing shutters of following size 1.85 x 1.50 made out of 8mm thick mild steel out of steel plates welded on single size mild steel angle frame made out of ISA 65x65x6mm M.S angles with groove stiffeners ISA 65x65x6mm along with the MS Gusset plate of size 0.45x0.30m 8mm thick and M.S screw rod of 50mm diameter threaded for required lengths providing 2Nos ISMB 100mmx75mmx7.2mm M.G I section for rod platform beam with necessary clamps anchor plates and anchor bolts, guide channels on either required side ISMC 75x40x7.3mm as required provided with suitable hold fasts to accommodate the shutter in operations and providing capstain head assembly with base plates and threaded inside to suit screw gearing rod with hexagonal nut with necessary special of labour charges and fixing in correct alignment civil work and position and including two coats of anticorrosive black paint over one coat of red oxide primer including all taxes etc., complete complying with standard specification as directed by the Engineer in charges of works .

N BALASUBRAMANIAN