Protection work for Residential Building in KM 210 KM 4-6 Location Patisain on NH 534 Old 119 under ER SR STMC 2025-26

Amount

Earth work in excavation of foundation of structures as per drawing and technical specification, including setting out, construction of shoring and bracing, removal of stumps and other deleterious matter, dressing of sides and bottom and backfilling with approved material. Ordinary soil Manual Means

PCC 1:3:6 in Foundation (Plain cement concrete 1:3:6 nominal mix in foundation with crushed stone aggregate 40 mm nominal size mechanically mixed, placed in foundation and compacted by vibration including curing for 14 days.)

Plain/Reinforced cement concrete in substructure complete as per drawing and Technical Specifications PCC Grade M20 Height upto 5m, using batching plant transit mixer & Concrete pump

Providing weep holes in Brick masonry/Plain/Reinforced concrete abutment, wing wall/return wall with 100 mm dia AC pipe, extending through the full width of the structure with slope of 1V :20H towards drawing foce. Complete as per drawing and Technical specifications

Supply and Installation of Self driven rock anchor made of 40CR material with outer dia of 32 mm and inner dia of 18.5 mm, Yield Load Carrying Capacity of Minimum 230 KN in soil / overburden /rock suitable for drilling placing and cement grouting. Installation with all accessories such as 51 mm dia drill bit, couplers, 10mm thick base plate and nut and bolt complete in all respect.

Cement pressure grouting through Hollow Soil/Solid Rock Anchor of outer dia 76/51/38/32/25 in Rock / overburden including all cost of material and equipments required to complete the grouting work at desired pressure.

Supplying, Laying and fixing in position of 8 MM thick Geosynthetic Cementatious composite mat, specified as per ASTM: D 8364 – GCCM Type - II specification. flexural strength ( 28 Day) should be > 4MPa and 28 days compressive strength as per ASTM D8329 should not be less 50 MPa.

Supply and fixing of Double Twisted Mesh including all cost of material, labour and T&P required to complete the work in all respect with following properties: a. Mesh type : 10x12, Mesh opening : 100mm X 120mm b. Mesh Wire dia. 2.7/3.7mm (ID/OD), mechanically edged/selvedged with galvanization as per EN 10223-3, and shall have minimum 10 numbers of mesh openings per meter of mesh perpendicular to twist. c. Tensile strength (500 Mpa) at a minimum elongation of 10%. The minimum tensile strength of the mesh panel must be 32.0 kN/m (+/-5kN/m) in the parallel to the twist direction and 15.5 kN/m in the perpendicular to the twist direction in accordance with the requirements of IS 16014:2018. d. Zinc Coating: The coating weight shall be heavily coated and soft type confirming to the requirements of specifications IS 4826:1972. Adhesion of Zinc Coating: No flakes or crack shall be observed while testing for adhesion of zinc coating as per IS 4826:1972. * ID/OD - Internal diameter/Outer diameter of Polymer coated wire.

Supply and installation by percussion driven of 10 MT capacity (UCS 500 MPA) 24mm dia soil nail (galvanised 70 micron minimum) in slopes including supply of all material, labour , locking arrangement, bearing plate of 200x200x10 mm, T&P etc. for proper completion of work including all cost.

Cement pressure grouting through Hollow Soil/Solid Rock Anchor of outer dia 76/51/38/32/25 in Rock / overburden including all cost of material and equipments required to complete the grouting work at desired pressure.