MAINTENANCE OF RIGBORE HAND TUBE WELL

Repairing chocked up Tube Well by cleaning and washing with chemical including pumping with powerful pump. (i) 40mm to 50mm dia Tube Well upto 100 metre deep

Labour for boring through any type of soil for sinking tube well of required dia. with top enlargement by rig boring system (either by reserve circulation or by direct rotary method) including hire charges and labour for rig machine, tools and plants, staging, force pumping set and making arrangement for water required for boring etc. complete and lowering of pipes, strainers, blind pipes etc. complete. (b) For depth upto 250 metre for 150 mm dia. Tube well with top enlargement of 250 mm dia.(upto 50 metre). (i) Next 50 metre

Supplying, fibre glass reinforced Epoxy resin slotted of 1 mm slot width in 6.1m length of approved make and as per direction of the Engineer - in Charge (b) 150 mm nominal dia (ii) 7.00 mm wall thickness

(A) Sypply of E.R.W.M.S.(Electrical Resistant Welded M.S.) black pipe of of TATA make (heavy quality) as per standard specification, 5 mm thick. (ii) 150 mm dia. (internal)

Labour for jointing and lowering G.I. or E.R.W. M.S. pipes including strainer within the tube well bore vertically with necessary sockets, special fittings and welding as required including cost of all jointing materials, hire charges of tools and plants, cutting pipes to required sizes, making threads, welding pieces together etc. as necessary as per direction of the Engineer-in-charge (ii) Above100 mm dia. and upto 200 mm dia. Pipe

Supplying, fitting and fixing special hand pump no. 6 of approved make (for 50 mm or 40 mm dia. tube well).

Supplying, fitting and fixing 65 mm dia. deep well brass cylinder with necessary fittings and accessories.

Supplying, fitting and fixing 15 mm dia. galv. M.S. connecting rod with sockets

Supply of G. I. pipes of TATA make including necessary sockets (d) 32 mm dia. (ii) Medium quality

Ordinary Cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement if any, in ground floor as per relevant IS codes. Platform

125 mm. thick brick work with I st class bricks in cement mortar ( I :4) in ground floor. Platform

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary (Ground floor).[Excluding cost of chipping over concrete surface] With I :4 cement mortar; (b) 10 mm thick plaster (for Platform, Silt Chamber)

Neat cement punning about 1.5mm thick in wall, dado, window sill, floor etc. NOTE: Cement 0.152 cu.m per100 sq.m.

Please Enable Macros to View BoQ information