NABARD RIDF XXX Development Upgradation and Associated Infrastructure works of Chettuva Fishing Harbour Construction of Reclamation Bund Balance work II nd Phase General Civil Work

Appendix I

65.7:Hydraulic excavator

OD6928/2025-2026:Filling with Quarry Waste spreading in uniform layers with motor grader on prepared surface, and compacting with smooth wheel roller to achieve the desired density complete.

OD6939/2025-2026:Supplying blasted rock from approved quarry to sorting site and sorting the stones into 10kg to 200kg category stones of approved quality having specific gravity ranges from 2.65 to 2.8 for forming the armour and berm of rubble mount shore protection inclusive of cost of stones, hire of lorries and machineries, labour charges required at quarry and at sorting place and the measurements of catagorised stones after proper sorting are taken on the private weigh bridge (weighment should be taken and recorded by departmental officers at the cost of the contractor ) having print outs using contractors supplied papers, stationeries and conveyed to the approved alignment of the shore to the lines and levels as per approved drawings with tolerance of +/- 20 cm in final levels including all cost and labour charges, hire and operational charges of mobile crane and excavator, rehandling, placing and packing and using mobile crane, inspecting the profile once in a week and cost of spalls/quarry muck and hire of machineries for forming the roadway for movement of lorries/tippers/cranes etc including all incidental charges etc complete as per the direction of departmental officers at site Thrissur District

OD6934/2025-2026:(Based on CTE approved observed data on 2023)Putting up reclamation bund of top width 2.0m, bottom width 2.75m.and average height of 5.00m with 1:1/4 side slope and protect the sides with coconut post of 7.00m long driving down 2.00m below bed level at 75cm c/c, providing 3 rows of weiling pieces 1/4 split coconut post on both sides and 1/4 split cross ties to alternate posts at top, bottom and middle portion and screening the sides of bund with Seperation memebrane of impermeable plastic sheet 125 micron thick fixed properly using coconut post and weiling pieces using reeper and nails in full height including tying properly using iron wire and coir altogether and supply and filling inside with hard clay/cut earth up to 5.00m, levell and conveyed with all leads and lifts including consolidating properly and maintaing the bund till the work is completed and dismantling the bund after completion of work etc. as per the directions of departmental officers at site. Bottom width 2.75m, Height 5.00m Side slope 1:1/4 Length of coconut pile 7.00m Spacing 0.75m No. of leyers 2 Length of full coconut pile required for 10m = ((10/0.75)+1)x2x7.00 = 200.67m Length of (1/4 split) coconut cross ties for 10m = 3x2.5 av. x 7 Nos. = 52.50 m Length of 1/4 split weiling pieces for 10m = 3x2x10 = 60m cost of full coconut post (Details vide 60.64.1), Coconut post required for 1m =200.67/10 = 20.06m (average length of coconut pile is 7 m and dia 25cm) Assuming cocunut post can be used 2 times No. of coconut pile required for 1m = 20.06/7 = 2.87 nos. Carriage of timber = 2.87x7x3.14x0.125x0.125 = 0.985cum Assume 3 rows wailing pieces in both sides and 3 cross ties, Total 52.60+60 - 112.50m Hence for 1.0m = 112.50/10 = 11.25m 7m long coconut tree equals 24m 1/4 split coconut piles , coconut post required = 11.25/24 = 0.469nos. Carriage required = 7x3.14x0.125x0.125 = 0.343cum Sawing area for 1m = 0.375x6x2x0.25 = 1.406sq.m Carpenter II class required = (4.3/10)x1.125 = 0.4838nos. Totla no.of coconut pile for 10m length @ 0.75m c/c = 10/0.75+1 = 14 nos on both sides = 14x2 = 28 nos. for 1m length = 28/10 = 2.8 nos Pile driving down length = 2.0m total length 2.0x2.8 = 5.6m Screening the frame with polythene sheet nailed to wailing pieces and coconut post, Plythene sheet require =10.3x2x5.00 = 103.00sqm For 1m = 103/10 = 10.30sqm Quantity of clay = (2.0+2.75)/2x5.00 = 11.88cum

Morth

OD6933/2025-2026:Supplying and placing 150 Gsm wowen Geotextiles like polypropylene multi filament fabric using twisted high tenacity yarn at the back side of the reclamation wall in one layer as filter including and providing necessary overlaps, all cost, conveyance, labour charges etc complete as per the instruction of departmental officers.

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