Maintenance/rectification of damages/defects at various locations in the revetment works of 132kv S/C Giri-Abdullapur transmission line under HPPTCL, PIU Kala Amb, District Sirmaur, (H.P) 173030

Excavation in Foundations,in all kind of soil and rock , Trenches, roads etc, in Earth Work, in all lifts stacking, the excavated soil not more than 3 metres clear from the edge of the excavation and then returning the stacked soil in 15 cm layers, when required into Plinths sides of Foundations etc. consolidating each deposited layer by ramming and watering and then disposing of all surplus excavated earth within all leads and lifts as per the directions of Engineer in charge.

Providing and Laying 1: 2: 4 (1 Cement: : 2 Sand : 4 Graded Stone Aggregate 20 mm nominal size ) and Curing complete including Cost of Form Work in Foundation , Plinth and coping etc wherever required.

Providing and Laying 1: 3: 6 (1 Cement: : 3 Sand : 6 Graded Stone Aggregate 40 mm nominal size ) and Curing complete including Cost of Form Work in Foundation and Plinth.

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) upto plinth level as per direction of Engineer- In- Charge:- In cement mortar 1:6 (1 cement : 6 coarse sand) {(Rate including dismantling & stacking of cracked/ bulged portion of existing RRM wall & providing medium duty PVC pipe 75mm diameter for weep holes as per the direction of Engineer-in-charge)}. Recovery of stone available at site will be done as per HPPTCL guidline/policy for this item.

Stone filling behind retaining walls as per directions of Engineer- In- Charge.

Providing & making Gabion structure with Mechanically Woven Double Twisted Hexagonal Shaped Wire mesh Gabion Boxes as per IS 16014:2012,MORTH Clause 2500, of required size, Mesh Type 10x12(D=100 mm with tolerance of ±2%), Zinic+10% Al alloy+PVC coated, Mesh wire diameter 2.7/3.7mm (ID/OD), mechanically edged/ selvedged with partitions at every 1m interval and shall have minimum 10 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 dimension of 200 mm, as per drawing, all complete as per directions of Engineer- in-charge.