GENERAL-Vallyassery Padasekharam-KPConstruction of Retaining wall, Motorthara and Vachal thode in Vallyassery Padasekharam in Ward No.8 of Thakazhy Gramapanchayath. - General Civil Work

2.6.1:Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-in-charge.All kinds of soil

OD29307/2024-2025:DR PACKING Under foundation - Dry stone packing under foundation with good quality blasted rubble including conveyance of material and labour charges etc. complete as per direction of departmental officers at site.

OD29306/2024-2025:DRY RUBBLE MASONRY _ Dry rubble without concrete levelling course masonry with good quality blasted rubble including packing to compactness to lines and levels cost and conveyance of all materials labour charges etc. complete as per direction of Departmental officers at site

7.1.1:Random rubble masonry with hard stone in foundation and plinth including levelling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) up to plinth level with:Cement mortar 1:6 (1 cement : 6 coarse sand)

4.3.1:Centering and shuttering including strutting, propping etc. and removal of form work for:Foundations, footings, bases for columns

4.1.5:Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level:1:3:6 (1 Cement : 3 coarse sand (zone-III) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources)

OD35476/2025-2026:Earth work in rough excavation in or under water banking excavated clay in layer not exceeding 20cm in depth, breaking clods and dressing up in embankment for roads, flood banks with all leads and lift in all kinds of soil (CPWD 2.2.1-2.4-2.5+2.24.1) under water excavation in stiff heavy kayal clay. All kinds of soil

OD29317/2024-2025:Putting up ring bund of top width 1.50m, bottom width 2.75m.and average height of 2.50m with 1:1/4 side slope and protect the sides with coconut post of 4.50m 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 2.50m, 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 2.5m Side slope 1:1/4 Length of coconut pile 4.50m Spacing 0.75m No. of leyers 2 Length of full coconut pile required for 10m = ((10/0.75)+1)x2x4.5 = 126m 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 =126/10 = 12.6m (average length of coconut pile is 6 m and dia 25cm) Assuming cocunut post can be used 2 times No. of coconut pile required for 1m = 12.6/6 = 2.1 nos. Carriage of timber = 2.1x6x3.14x0.125x0.125 = 0.618cum 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 6m long coconut tree equals 24m 1/4 split coconut piles , coconut post required = 11.25/24 = 0.469nos. Carriage required = 6x3.14x0.125x0.125 = 0.294cum 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 totScreening the frame with polythene sheet nailed to wailing pieces and coconut post, Plythene sheet require =10.3x2x2.50 = 51.50sqm For 1m = 51.5/10 = 5.15sqmal length 2.0x2.8 = 5.6m Quantity of clay = (1.5+2.75)/2x2.50 = 5.31cum