PROVN OF SUBSURFACE DRAIN ALONG THE PERIPHERY OF RUNWAY AT INS BAAZ CAMPBELL BAY.

Amount

Excavation in trenches not exc 1.5m wide and not exc 1.5m deep for foundations or for laying pipes etc., n.exc 10 Sqm on plan and getting out in soft/loose soil complete all as specified and as directed.

Returning filling in trenches with approved soil, including spreading, levelling, watering and well ramming in layers n.exc 25cm thickness as in soil complete all as specified and as directed.

Removing excavated material/soil to a distance exceeding 250m but not exceeding 500m and deposited where directed at a height not less than 1.5m above starting point complete all as specified and as directed

M&L for back fill (Filter Media) consisting of crushed stone satisfying the grading as per IRC specification for sub surface drainage complete all as specified and as directed. Note: 1. Grading of back filling (filter media) shall be decided depending on type of soil as mentioned in PS as encountered at site. 2. Quoted rate shall be deemed to be included all types of class and grading of back filling material as mentioned under relevant PS.

Supply and laying of non woven punched mechanically bonded polypropylene geotextile type-II as per MORTH (IRC) specification etc. complete all as specified and as directed

M&L for 150mm bore UPVC pipe or next higher size with 2/3 circumference having perforation and bottom 1/3 circumference without perforation in any length of pressure rating 10kg/sqcm including all necessary fittings like socket, bends, Tees etc laid in trenches complete all as specified and as directed. Note: Details of perforation in UPVC pipes shall be followed as given under relvant PS and Annex-I.

M&L for 300mm bore UPVC pipe or next higher size, pressure rating 6kg/sqcm laid in trenches any length complete all as specified and as directed.

M&L for UPVC 'T' Junction with reducer 300mm to 150mm without perforation for connecting the above pipe complete all as specified and as directed.

M&L for 300mm dia UPVC bend for connecting the above pipe complete all as specified and as directed.

Cutting into existing RCC drain for connecting new perforated/ solid UPVC pipes making good to pipe including rendering, cutting out existing benching for forming branch channel (1/2 round or 3/4 section) in cement concrete 1:2:4 type B-1 smooth finished including end protected with grate or screen as required complete all as specified and as directed.

City Constructie Pvt Ltd

Prasur Electricals & Engineering Co.

Jas & Co

M/S G S GREWAL

Rajan Traders

Kailash Engineering Company

S G Enterprises

Rds Project ltd.