1 Design, Supply and fixing rock fall protection / stabilization system comprising of HTS cable nets / HTS wire of cable diameter of Minimum 6mm twisted or straight with tensile strength of net minimum 100 kN/m, fixed by sufficient anchoring in rock as per design with arrangement of providing and fixing of boundary and intermediate support ropes of Minimum 12 mm diameter of High Tensile Steel Wire rope grade 1770 N/Sq. mm with coating for corrosion resistance, 95% ZN + 5% AL (+/-1%) (as per EN-10244-2-2009). Secondary Mesh having minimum tensile strength 50 kN/m, with minimum Mesh width not more than 90 mm with Tensile Strength of wire 1770 N/mm2. including top and bottom support rope, lacing wire or rope required to connect the nets and all accessories such as Clamps, Buckles, Plates, Thimbles including safety, all other ancillary works, material, machinery, labour. Drilling of 75 mm to 100 mm dia. holes and providing, fixing Minimum 32 mm diameter of Fe 500 surface steel nails/anchors of 4 m length and grouting the holes by cement grout with necessary admixtures at grid pattern of 2.75m x 2.75m c/c. Including all other accessories, material, machinery, labour etc. complete. Or equivalent/higher system along with detailed drawings and specifications. The equivalent or higher system will be evaluated by IIT. 1 Sqm. 2 Design, Supply and fixing rock fall protection / stabilization system comprising of HTS cable nets / HTS wire of cable diameter of Minimum 6mm twisted or straight with tensile strength of net minimum 220 kN/m, fixed by sufficient anchoring in rock as per design with arrangement of providing and fixing of boundary and intermediate support ropes of Minimum 12 mm diameter of High Tensile Steel Wire rope grade 1770 N/Sq. mm with coating for corrosion resistance, 95% ZN + 5% AL (+/-1%) (as per EN-10244-2-2009). Secondary Mesh having minimum tensile strength 50 kN/m, with minimum Mesh width not more than 90 mm with Tensile Strength of wire 1770 N/mm2. including top and bottom support rope, lacing wire or rope required to connect the nets and all accessories such as Clamps, Buckles, Plates, Thimbles including safety, all other ancillary works, material, machinery, labour. Drilling of 75 mm to 100 mm dia. holes and providing, fixing Minimum 32 mm diameter of Fe 500 surface steel nails/anchors of 8 m length and grouting the holes by cement grout with necessary admixtures at grid pattern of 2m x 2m c/c. Including all other accessories, material, machinery, labour etc. complete. or equivalent/higher system along with detailed drawings and specifications. The equivalent or higher system will be evaluated by IIT. 1 Sqm. 3 Design, Supply and fixing rock fall protection / stabilization system comprising of HTS cable nets / HTS wire of cable diameter of Minimum 6mm twisted or straight with tensile strength of net minimum 350 kN/m, fixed by sufficient anchoring in rock as per design with arrangement of providing and fixing of boundary and intermediate support ropes of Minimum 12 mm diameter of High Tensile Steel Wire rope grade 1770 N/Sq. mm with coating for corrosion resistance, 95% ZN + 5% AL (+/-1%) (as per EN-10244-2-2009). Secondary Mesh having minimum tensile strength 50 kN/m, with minimum Mesh width not more than 90 mm with Tensile Strength of wire 1770 N/mm2. including top and bottom support rope, lacing wire or rope required to connect the nets and all accessories such as Clamps, Buckles, Plates, Thimbles including safety, all other ancillary works, material, machinery, labour. Drilling of 75 mm to 100 mm dia. holes and providing, fixing Minimum 32 mm diameter of Fe 500 surface steel nails/anchors of 8 m length and grouting the holes by cement grout with necessary admixtures at grid pattern of 2m x 2m c/c. Including all other accessories, material, machinery, labour etc. complete. or equivalent/higher system along with detailed drawings and specifications. The equivalent or higher system will be evaluated by IIT. 1 Sqm. 4 Design, Supply and Installation of High Tensile Steel Wire Mesh/Net having minimum tensile strength 250 KN/m with Tensile Strength of wire 1770 N/mm2 with coating for corrosion resistance, 95% ZN + 5% AL (+/- 1%) (as per EN-10244-2-2009), Drilling of 75 mm to 100 mm dia. holes and providing, fixing 32 mm diameter of Fe 500 surface steel nails/anchors of 6m length and grouting the holes by cement grout with necessary admixtures at grid pattern of 2.3m x 2.3m c/c, including top and bottom support rope, and all other accessories, material, machinery, labour etc. complete. or equivalent/higher system along with detailed drawings and specifications. The equivalent or higher system will be evaluated by IIT. 1 Sqm. 5 Design, Supply and Installation of High Tensile Steel Wire Mesh/Net having minimum tensile strength 150 KN/m with Tensile Strength of wire 1770 N/mm2 with coating for corrosion resistance, 95% ZN + 5% AL (+/- 1%) (as per EN-10244-2-2009), Drilling of 75 mm to 100 mm dia. holes and providing, fixing 32 mm diameter of Fe 500 surface steel nails/anchors of 6m length and grouting the holes by cement grout with necessary admixtures at grid pattern of 2.3m x 2.3m c/c, including top and bottom support rope, and all other accessories, material, machinery, labour etc. complete. or equivalent/higher system along with detailed drawings and specifications. The equivalent or higher system will be evaluated by IIT. 1 Sqm. 6 Design, Supply and Installation of High Tensile Steel Wire Mesh/Net drape system having minimum tensile strength 100 kN/m of primary net with Tensile Strength of wire 1770 N/mm2 with coating for corrosion resistance, 95% ZN + 5% AL (+/-1%) (as per EN-10244-2-2009) with Mesh width of not more than 290 mm. Secondary mesh having minimum tensile strength 50 kN/m, with minimum Mesh width not more than 90 mm with Tensile Strength of wire 1770 N/mm2 and fixing minimum 10mm diameter wire rope anchors having yield strength of 500 N/mm2 or equivalent of 3 m length and grouting the holes by cement grout with necessary admixtures at top and bottom at pattern of 3.5m to 4m c/c, including top and bottom support rope, and all other accessories, material, machinery, labour etc. complete. or equivalent/higher system along with detailed drawings and specifications. The equivalent or higher system will be evaluated by IIT. 1 Sqm. 7 Design, Supply, Pretensioning and Installation of 5000 Kilojoule Rock fall barrier in horizontal plane for protection against vertical fall on carriageway. Energy Class: 5000 kJ, Wire Diameter Min.: 3 mm, Ring Diameter Min.:300 mm, Rope Diameter Min.: 20 mm, Tensile Strength: 1770 N/mm2 , ETAG 027 Certification Required. or Indian Standard equivalent/higher system along with detailed drawings and specifications. The equivalent or higher system will be evaluated by IIT. 1 Rmt a. Barrier Height Min.:6 Mtr. Design, Supply, Pretensioning and Installation of 5000 Kilojoule Rock fall barrier in horizontal plane for protection against vertical fall on carriageway. Energy Class: 5000 kJ, Wire Diameter Min.: 3 mm, Ring Diameter Min.:300 mm, Rope Diameter Min.: 20 mm, Tensile Strength: 1770 N/mm2, ETAG 027 Certification Required. or Indian Standard equivalent/higher system along with detailed drawings and specifications. The equivalent or higher system will be evaluated by IIT. 1 Rmt b. Barrier Height Min.:7 Mtr. 8 Design, Supply, Pretensioning and installation of 8000 Kilojoule Rock fall barrier in horizontal plane for protection against vertical fall on carriageway. Energy Class : 8000 kJ, Wire Diameter Min. : 3 mm, Ring Diameter Min. : 300 mm, Rope Diameter Min. : 22 mm, Barrier Height Min. : 6 Mtr, Tensile Strength : 1770 N/mm2 , ETAG 027 Certification Required. or Indian Standard equivalent/higher system along with detailed drawings and specifications. The equivalent or higher system will be evaluated by IIT. 1 Rmt a. Barrier Height Min.:6 Mtr. Design, Supply, Pretensioning and installation of 8000 Kilojoule Rock fall barrier in horizontal plane for protection against vertical fall on carriageway. Energy Class : 8000 kJ, Wire Diameter Min. : 3 mm, Ring Diameter Min. : 300 mm, Rope Diameter Min. : 22 mm, Barrier Height Min. : 6 Mtr, Tensile Strength : 1770 N/mm2 , ETAG 027 Certification Required. or Indian Standard equivalent/higher system along with detailed drawings and specifications. The equivalent or higher system will be evaluated by IIT. 1 Rmt b. Barrier Height Min.:7 Mtr. Design, Supply, Pretensioning and installation of 8000 Kilojoule Rock fall barrier in horizontal plane for protection against vertical fall on carriageway. Energy Class : 8000 kJ, Wire Diameter Min. : 3 mm, Ring Diameter Min. : 300 mm, Rope Diameter Min. : 22 mm, Barrier Height Min. : 6 Mtr, Tensile Strength : 1770 N/mm2 , ETAG 027 Certification Required. or Indian Standard equivalent/higher system along with detailed drawings and specifications. The equivalent or higher system will be evaluated by IIT. 1 Rmt c Barrier Height Min.:8 Mtr. 9 Design, Supply, Pretensioning and installation of 10000 Kilojoule Rock fall barrier in horizontal plane for protection against vertical fall on carriageway. Energy Class : 10000 kJ, Wire Diameter Min. : 3 mm, Ring Diameter Min. : 300 mm, Rope Diameter Min. : 22 mm, Barrier Height Min.: 7 Mtr, Tensile Strength : 1770 N/mm2 , ETAG 027 Certification Required. or Indian Standard equivalent/higher system along with detailed drawings and specifications. The equivalent or higher system will be evaluated by IIT. 1 Rmt 10 Scaling of loose rock mass up to 200mm thick and disposal at 3 km from the site as directed, including all material, labour, machinery. 1 Sqm 11 Conducting 3D laser survey using LiDAR/Drone equipment’s for steep slopes/ cuts of specific locations prone to rock fall/ landslides. Including Developing Contour plans, sections at every 5m, Generation of digital terrain model, conducting geomorphological studies based on survey data. So as to identify the areas of rockfall/landslides mitigation works. 1 Sqm. 12 Providing and Installing Three dimensional erosion control mat made of polypropylene polymer of minimum mass per unit area 400 gm / sqm extruded on to a steel wire mesh having 95% ZN + 5% Al coating. The composite shall have a longitudinal tensile strength of Minimum 150 kN/m. Including all necessary accessories required for erosion control mats in place as per technical specifications attached and as directed by engineer in charge. or Indian Standard equivalent/higher system along with detailed drawings and specifications. The equivalent or higher system will be 1 Sqm. evaluated by IIT.
