Flood Mitigation work to the Eroded Portion of Left Bank in Coleroon River by using Gabion Wall in Kariyamanickam Village of Manachanallur Taluk in Trichy District.

Amount

Supplying and driving hot rolled sheet pile to line and level including fabricating reformed steel sheet pile at required position at corners, Junction, wedge etc. Installing vertically along the alignment with the help of equipment's like hydraulic crawler mounted vibro hammer or Silent piler based on the site requirement and with concern of Engineer-in-charge, through the grooves to Interlock together the sheet piles to suit the grooves of existing sheet piles. Providing S430 GP or equivalent sheet piles of having weight of not less than 96.70 kg/m of pile, and Elastic modulus of not less than 2600 cm3/m. Installing the same to a depth as specified below the design bed level including cost and conveyance of all materials, hire charges of equipments and mobilization and demobilization including fuel and lubricant charges, pre drilling if required, etc. complete complying with standard specification and as directed by the departmental officers.

Earth work open excavating for foundation in all kinds of soil and sub soils and depositing on bank with initial lead of 10 m& Initial lift of 2m except hard rock requiring blasting to full depth as may be directed, inclusive of shoring, strutting, bailing out water when ever necessary as per standard specifications and as directed by the departmental Engoneers - (Open excavation for foundation).

Supplying and erection of steel centering for sides and soffits with strutting up to 3m height for plain surface with all cross bracings using Mild Steel sheets of size 90cm. X 60cm. thickness of and 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 10cmX 6.5cm spaced at 90cm. Centre to centre and supported by casuarina props of 10 to 13cm dia (spaced at 75cm) Centre to centre etc. complete complying with Standard Specifications and as directed by the Departmental Engineers.

Supplying fabricating and placing in position of Mild Steel (MS) or Ribbed Tor Steel (RTS) of grills for all R C C works including cost of steel, binding wire and labour charges for decoiling cutting, bending and tying the grills etc. complete complying with standard specifications and as directed by the Departmental Engineers.

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 woth 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 seting of concrete, improve workability without impairing strength and durability with about (5cu.m) 7730kg of 20mm machine crushed stone jelly and with about (3.3cum) 5156 kg. of 10-12mm machine crushed stone jelly and about with (4.79cu.m) 7670 kg. of sand, but excluidng cost of reinforcement grill and fabricating charges etc, complete as directed by the Engineer in charge of works and as per the technical specifications

Providing and making Gabion structure with Mechanically Woven Double Twisted Hexagonal shaped wire Mesh Gabion Boxes as per IS 16014:2018, Morth Clause 2500, of required size, Mesh Type 10x12 (D=100mm with tolerance of ± 2%) Zinc + PVC Coated, Mesh Wire diameter 2.7 / 3.7mm, mechanically edged / selvedged with partitions at every 1m interval and shall have minimum 10 numbers of openings per meter of mesh perpendicular to twist, tying with lacing wire of diameter 2.2 / 3.2mm (ID/OD), supplied @ 3% by weight of Gabion boxes, filled with boulders with least dimension of 200mm, as per drawing, all complete as per directions of Engineer-in-Charge.

Providing and laying needle punched and mechanically bonded Non-woven Geotextiles of Type-I indigenously manufactured from high quality fibres on the prepared subgrade for separation as per MORTH Specification 702

Refilling with excavated soil (other than sand) complying with standard specification for filling in foundation and basement.etc. complete complying with Standard Specifications and as directed by the Departmental Engineers

Hire Charges for dewatering with following 5 HP Diesel engine driven pumb with section and deleviry pipe inclusive cost of fuel maintenance and operator wages, transport and fixing charges etc., and as directed by the departmental officers

Quarrying and Supplying hard granite stones of weight 1.50MT to 2.00MT for Armour layer upto 8.00m to 10.00m water depth including Quarrying, loading at quarry, conveying in contractors transport by tipper including are weighing and post weighing for the purpose of measurement and dumping into the River bank slope with required width and side slope with necessary equipment and device as per Drawing and specification etc. complete and as directed by the departmental officers.

GST at 18%

V.JANARTHANAN (BID ID -1458487)

K PADMANABHAN (BID ID -1458932)