Slope stabilization of Landslide affected area of Joshimath in District-Chamoli

Supply & Installation of High tensile Bar of 400 KN Ultimate load Pre stressed Anchors of required length in soil, mixed with boulders and in soft rock upto desired depth including supply of Prestress Anchor, stressing material, all the cost of equipment, tools, Labour, special labour and T&P required to complete the wok in all respect in accordance to drawing Technical specifications and as per direction of Engineer -in-charge etc. excluding cost of cement slurry grouting with admixture.

Construction of 300 mm dia. friction Micro Pile including drilling in soil mixed with boulders and in soft rock upto desired depth (ODEX drilling using type of crawler mounted machine as per site requirement) cement grouting using double packer, redrilling, perforated MS casing, including all cost of material, labour, special labour and T & P required to compete the work in all respect in accordance to drawings, Technical Specifications and as per direction of Engineer-in-Charge. However cost of concrete and reinforcement will be paid separately as per relevant BOQ items.

Providing and Installation of 273/168 mm dia perforated MS casing for Micro piles in soil mixed with boulders and in soft rock upto desired depth including all cost of material labour, special labour and T&P required to complete the work in all respect in accordance to drawings, Technical Specifications and as per direction of Engineer-in-charge.

Supply and installation of self driven rock anchor made of 40 CR material with outer dia of 32 mm and inner dia of 19.00mm, 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, 10 mm thick base plate and nut and bolt complete in all respect but excluding the cost of cement grouting which will be paid extra as per relevant BOQ item.

Supply and Installation of Self driven rock anchor made of 40CR material with outer dia of 38 mm and inner dia of 19 mm. Yield Load carriying Capacity of minimum 400 KN in soil/overburden/rock suitable for drilling placing and cement Grouting. Installation with all accessories such as 100 mm dia drill bit. couplers, 10 mm thick base plate and nut and bolt complete in all respect but excluding the cost of cement grouting which will be paid extra as per relevant BOQ item.

Supply and installation of high tensile rolled cable net having aperture size not more than 300 mm in one direction and minimum longitudinal tensile strength 100 KN/M and punching resistance 200 KN, comprising of minimum 8 mm dia wire rope cable with a minimum breaking load of 40.7 KN. The tensile strength of wire of the cable should be 1770 N/sq mm having corrosion protection of Zn Coating Class A or 95% Zn +5% Al Class-B (Galfan) Coating as per IS/ISO- 17746:2016 for treatment of slopes including all cost of material (net, boundary rope & rope anchor etc. comprising of the complete system), labour, special labour and T &P required to compete the work in all respect in accordance with drawings, Technical Specifications and as per the direction of Engineer-in-charge. Product Manufacturer shall have in-house test facility for conducting longitudinal tensile strength and punching resistance test and shall be responsible for carrying out both tests (longitudinal tensile strength and punching resistance) during PDI, per lot in presence of representative/s of Engineer-in-Charge on his own expenses.

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 100 mm X 120 mm b. Mesh wire dia. 2.7/3.7mm (ID/OD*). Mechanically edged/selvedged with galavanization as per EN 10223-3 and shall have minimum 10 numbers of mesh opening 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 (+/-0.5 KN/m) in the paralel 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: 4826-1979. Adhresion of zinc coating. No flakes or crack shall be observed while testing for adhersion of zinc coating as per IS:4826-1979 ID/OD* internal diameter /outer diameter of polymer coated wire.

Supply and Installation of 200 Gsm Erosion Control Mat required as per design specification including cost of all labour, material and T & P required for proper completion of work as per direction of Engineer-in-charge.

Construction of concrete Lined drain as per drawing and specification mentioned in drawing including cost of all labour, material and T & P required for proper completion of work as per direction of Engineer-in-charge.

Providing and fixing of 100 mm drainage holes including drilling, fixing PVC perforated pipes etc. as per approved drawings including cost of all labour, material and T & P required for proper completion of work as per direction of Engineer-in-charge.