Construction of Gabion Walls, RCC Retaining walls, RCC Drains, Slop Formations etc to check the severe land sliding in the backside of STS Workshop building at Lucknow, Mayabunder

Amount

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

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m.

All kinds of soil.

Open timbering over areas including strutting, shoring etc. complete. (Measurements to be taken of the face area timbered):

Depth exceeding 3 m but not exceeding 4.5 m

Extra for planking and strutting in open timbering if required to be left permanently in position. (Face area of the timber permanently left to be measured).

Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m.

Supplying and filling in plinth with sand under floors, including watering, ramming, consolidating and dressing complete.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)

Providing and laying in position specified grade of reinforced cement concrete, excluding the cost of centering, shuttering, finishing and reinforcement - All work up to plinth level :

1:1.5:3 (1 cement : 1.5 coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size de rived from natural sources)

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement :

1:1.5:3 (1 cement : 1.5 coarse sand(zone-III) derived from natu- ral sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)

Centering and shuttering including strutting, propping etc. and removal of form for

Foundations, footings, bases of columns, etc. for mass concrete

Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

Lintels, beams, plinth beams, girders, bressumers and cantilevers

Columns, Pillars, Piers, Abutments, Posts and Struts

Providing precast cement concrete Jali 1:2:4 (1 cement : 2 coarse sand(zone-III) : 4 graded stone aggregate 6mm nominal size ), reinforced with 1.6 mm dia mild steel wire, including centering and shuttering, roughening cleaning, fixing and finishing in cement mortar 1:3 (1 cement: 3 fine sand) etc. complete, excluding plastering of the jambs, sills and soffits.

50 mm thick

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level.

Thermo-Mechanically Treated bars of grade Fe-500D or more.

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level.

Thermo-Mechanically Treated bars of grade Fe-500D or more.

Steel work welded in built up sections/ framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required.

In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works

12 mm cement plaster of mix :

1:4 (1 cement: 4 fine sand)

Finishing walls with Acrylic Smooth exterior paint of required shade :

New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 2.20 kg/10 sqm)

Preparation and consolidation of sub grade with power road roller of8 to 12 tonne capacity after excavating earth to an average of 22.5cm depth, dressing to camber and consolidating with road rollerincluding making good the undulations etc. and re-rolling the subgrade and disposal of surplus earthwith lead upto 50 metres.

Providing and fixing G.I. chain link fabric fencing of required width in mesh size 50x50 mm including strengthening with 2 mm dia wire or nuts, bolts and washers as required complete as per the direction of Engineer-in-charge.

Made of G.I. wire of dia. 4 mm, PVC coated to achieve outer dia not less than 5 mm in required colour and shade

Providing & making Gabion structure with Mechanically Woven DoubleTwisted Hexagonal Shaped Wire mesh Gabion Boxes as per IS16014:2012,MORTH Clause 2500, of required size, Mesh Type10x12(D=100 mm with tolerance of ±2%), Zinic+10% Al alloy+PVCcoated, Mesh wire diameter 2.7/3.7mm (ID/OD), mechanically edged/selvedged with partitions at every 1m interval and shall have minimum10 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 dimensionof 200 mm, as per drawing, all complete as per directions of Engineer-in-charge.

Providing & fixing PVC pipe as weep hole or as directed by Engineer-in-charge.

110 mm dia

75 mm dia

Supplying and filling stone boulder of size range 5cm to 20cm to act as filter media back fill to drain off accumulated seepage water for all leads & lifts, all complete as per direction of Engineer-in-charge.

Supplying and laying of Multifilament woven Geo textile confirming to woven PP Geo textile (240 gram TFI-1300) on the back side of Gabion. The cost will include all the operations like supplying and laying in places etc. as per the direction of Engineer-in-charge.

Deduct for using the pre-existing stone boulders in the newly re-located gabion wall structure.

K THANKACHAN AND SONS (BID ID -46889)

BHAGWAN SINGH (BID ID -47052)