slope protection works 1). scaling of loose rock mass up to 200 mm thick and disposal at 3 km from the site as directed, including all material, labour, machinery. 2). design, supply and fixing rock fall protection / stabilization system comprising of eta certified hts cable nets / hts wire of cable diameter of minimum 6 mm 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
nd intermediate support ropes 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 of 30 kn/m, with minimum mesh width not more than 90 mm including top & bottom support rope, lacing wire and rope required to connect the nets and all other accessories such as clamps, buckles, plates, thimbles including safety and all other ancillary works, material, machinery, labour. drilling of 75 mm to 100 mm dia. holes and providing, fixing 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 2.00 m 2.00 m c/c including all material, machinery, labour, etc. complete; or equivalent or higher system along with detailed drawings & specifications. equivalent or higher system will be evaluated by iit. 3). design, supply and installation of high tensile steel wire mesh/drape system comprising of of eta certified hts cable net having minimum tensile strength of 100 kn/m of primary net with tensile strength of wire 1770 n/sq. mm with coating for corrosion resistance, 95% zn + 5% al (+/-1%) (min 250 gsm) as per en-10244-2-2009) with mesh width not more than 290 mm. secondary mesh having minimum tensile strength of 30 kn/m, with minimum mesh width not more than 90 mm and fixing minimum 10 mm diameter wire rope anchor having yield strength of 500 n/mm or equivalent of 3 m length and grouting holes by cement grout with necessary admixtures at top and bottom at pattern of 3.5 m to 4.0 m c/c including top and bottom support rope and all other accessories, material, machinery, labour, etc. complete; or equivalent or higher system along with detailed drawings & specifications. equivalent or higher system will be evaluated by iit. 4). supply and installation of 3d erosion control mat of pp/pet having minimum mass per unit area 400 gm / sqm along with a steel wire mesh having 95% zn + 5% al coating for slope protection. the composite shall have a minimum longitudinal tensile strength of 150 kn/m. lncluding all necessary accessories required for erosion control mats in place as per technical specifications attached and as directed by engineer in charge. 5). providing and application of hydraulically applied erosion control products by means of hydroseeding/ hydro mulching on the hill side and valley side slope surface for erosion control by means of vegetation including safety, all other ancillary works, material, machinery labour, etc; with all leads and lifts and as per detailed technical specifications and as directed by elc. 6). supply and installation of multi strand prestressed cable anchors with initial prestress load of minimum 1094 kn (with 6 nos. of 15.2 mm dia strands with breaking load per mono strand of minimum 260.7 kn) and drill hole dia of 150 mm with full length grouting in two phases, protective sheath for exposed part above the anchor head, centralizers, including all ancillary items for anchoring, grouting and stressing on the slope surface along with casing (if required) for drilling in collapsible strata as per detailed technical specifications and as directed by engineer-in-charge. 7). providing subsurface drain hole (horizontal / inclined) in the slope with perforated pvc pipe (lined with non woven geotextile) of 50 mm internal diameter by drilling and inserting the perforated pvc pipe as per the drawings etc. complete. 8). design, supply, pretensioning and installation of 2000 kilojoule rock fall barrier in horizontal plane for protection against vertical fall on carriageway. energy class: 2000 kj, wire diameter min.: 3 mm, ring diameter max.: 350 mm, rope diameter min.: 16 mm, barrier height min.: 5m, tensile strength: 1770 n/mm, etag 027 certification required, or equivalent/higher system along with detailed drawings and specifications. the equivalent or higher system will be evaluated by iit. 9). design, supply, pretensioning and installation of 2000 kilojoule rock fall barrier in horizontal plane for protection against vertical fall on carriageway. energy class: 2000 kj, wire diameter min.: 3 mm, ring diameter max.: 350 mm, rope diameter min.: 16 mm, barrier height min.: 6m, tensile strength: 1770 n/mm, etag 027 certification required, or equivalent/higher system along with detailed drawings and specifications. the equivalent or higher system will be evaluated by iit. 10). providing and fixing continuously threaded bars of diameter 32 mm, yield load more than 400 kn, hexagonal nut, washer plate 200 200 10 mm size, coupler for connecting bars and full length grouting with admixtures including all ancillary works for top / bottom / cortical anchoring including all ancillary material, machinery, labour, etc. complete as directed by engineer-in-charge. 11). supply and installation of self drilling anchors of 38 mm diameter, yield load minimum 400 kn, nut, washer plate, coupler for connecting bars, drill bit and full-length grouting with admixture including all ancillary items for foundation anchoring etc. complete as per technical specifications and as directed by engineer-in-charge. 12). providing and fixing continuous threaded bars of 25 mm diameter, yield load more than 245 kn, hexagonal nut, washer plate 200 200 10 mm size, coupler for connecting bars, and full length grouted with admixture including all ancillary work for top/bottom/cortical anchoring including all ancillary material, machinery, labour etc. complete and as directed by engineer-in-charge. 13). providing, supplying and pouring of grout (1:1.5 cement mortar) including all cost of material, labour, t&p etc. complete in articulating block fabric form as mentioned in cl. no. 4 (above) using grout mix. the mix shall exhibit a minimum compressive strength of 20 n/sq.mm at 28 days when made and tested in accordance with is:516. the sand/cement ratio shall be determined by mix designs or as per the direction of engineer-in-charge etc. complete including all cost of labour , material and t&p etc. 14). supplying and laying of articulating blocks concreting lining fabric form / geotextile mattress upto 150 mm thick grouted with cement mortar type 1 with neck narrow breakables (as per technical specification enclosed from the indian manufacturer). the articulating block fabric form with narrow breakable necks connected from one block to another with 6mm galvanized steel cables, running vertically or horizontally or both, shall be procurred directly . proof of manufacturing facilities with photos and copies of relevant industrial permissions/license to be submitted along with bills . tender as documentary evidence including all cost of material labour and t&p etc required for proper completion of work as per direction of engineer-in-charge. 15). supplying and laying of articulating blocks concreting lining fabric form / geotextile mattress upto 200 mm thick grouted with cement mortar type 1 with neck narrow breakables (as per technical specification enclosed from the indian manufacturer). the articulating block fabric form with narrow breakable necks connected from one block to another with 6mm galvanized steel cables, running vertically or horizontally or both, shall be procurred directly . proof of manufacturing facilities with photos and copies of relevant industrial permissions/license to be submitted along with bills . tender as documentary evidence including all cost of material labour and t&p etc required for proper completion of work as per direction of engineer-in-charge. 16). supplying and laying of articulating blocks concreting lining fabric form / geotextile mattress upto 250 mm thick grouted with cement mortar type 1 with neck narrow breakables (as per technical specification enclosed from the indian manufacturer). the articulating block fabric form with narrow breakable necks connected from one block to another with 6mm galvanized steel cables, running vertically or horizontally or both, shall be procurred directly . proof of manufacturing facilities with photos and copies of relevant industrial permissions/license to be submitted along with bills . tender as documentary evidence including all cost of material labour and t&p etc required for proper completion of work as per direction of engineer-in-charge. 17). supply and laying of fabric formed concrete (ffc) mattress of uniform section with minimum thickness of 75 mm with unilateral galvanized steel reinforcements excluding supply and pouring of fine aggregate concreteetc.complete. 18). supply and installation of end bearing anchors(type-anchor-2 mt capacity) and of minimum length 3m, made out of high tensile cables as per approved drawings or as per direction of engineer-in-charge @ c/c spacing 0.50 m etc. complete including all cost of labour, materialandt&petc. 19). providing and fixing of eta-category a- dynamic rockfall barrier, composed of a system comprising of steel meshes and cables coated in znal 5% class-a(en 102442, en 102642), minimum 5000kj capacity, 6m height, consisting of posts, anchor bolts, plate for fixing anchor bolts, base anchors, cable anchors, cables/support ropes, clamps, retention panels, energy dissipaters etc. complete with post to post distance of 10m and energy absorption by deformation, etc. completion of workasawhole. the equivalent or higher system will be evaluated by iit. 20). providing and fixing of eta-category a- dynamic rockfall barrier, composed of a system comprising of steel meshes and cables coated in znal 5% class-a(en 102442, en 102642), minimum 5000kj capacity, 7m height, consisting of posts, anchor bolts, plate for fixing anchor bolts, base anchors, cable anchors, cables/support ropes, clamps, retention panels, energy dissipaters etc. complete with post to post distance of 10m and energy absorption by deformation, etc. completion of workasawhole. the equivalent or higher system will be evaluated by iit. 21). providing and fixing of eta-category a- dynamic rockfall barrier, composed of a system comprising of steel meshes and cables coated in znal 5% class-a(en 102442, en 102642), minimum 8000kj capacity, 7m height, consisting of posts, anchor bolts, plate for fixing anchor bolts, base anchors, cable anchors, cables/support ropes, clamps, retention panels, energy dissipaters etc. complete with post to post distance of 10m and energy absorption by deformation, etc. completion of work as a whole. the equivalent or higher system will be evaluated by iit. 22). design, supply and installation of debris flow barrier with double mesh i.e high tensile wire mesh or high tensile roll cable net with posts having impact absorption energy of the system must be minimum of 100 kn/sqm in dynamic loading conditions and as per drawings, technical specifications and the direction of engineer-in-charge. material used for manufacturing the debris flow barrier should be equivalent to the material used in eta/etag certified mesh of high tensile steel not less than 1770n/mm2. (equivalent or higher system will be technically evaluated by iit) 23). design, supply and installation of debris flow barrier with double mesh i.e high tensile wire mesh or high tensile roll cable net with posts having impact absorption energy of the system must be minimum of 150 kn/sqm in dynamic loading conditions and as per drawings, technical specifications and the direction of engineer-in-charge. material used for manufacturing the debris flow barrier should be equivalent to the material used in eta/etag certified mesh of high tensile steel not less than 1770n/mm2. (equivalent or higher system will be technically evaluated by iit) 24). supplying, providing and laying of geosynthetic cementitious composite mat comprising a special blend of minerals encapsulated between a woven (100 grams/sqm) and two non-woven needle punched geotextiles (200 grams/sqm) having min mass per unit area 7600grams/sqm (+/-20%) before curing and 9100 grams/sqm (+/-20%)after curing as per en 14196, having nominal thickness of 9mm (+/-15%) as per en iso 9863, tensile strength of 22 kn/m (+/-15%) in machine direction & 25 kn/m (+/-15%) in cross machine direction as per en iso 10319 including safety, all other ancillary works, material, machinery, labour, etc. complete at easily accessible location including top and bottom, with all leads and lifts and as directed by engineer - in charge. (equivalent or higher system will be technically evaluated by iit) 25). supplying, laying and fixing in position of 10 mm thick geosynthetic cementatious composite mat, specified as per astm: d 8364 gccm type - iii specification. flexural strength (28 day) should be >4mpa and 28 days compressive strength as per astm d8329 should not be less 60 mpa. (equivalent or higher system will be technically evaluated by iit) 26). providing and installation of alert/warning system which include a compact and robust device for detecting rockfall events (deformations, impacts, failures, etc.) on single or multiple portions of protection systems and from different directions for the alert in rockfall measures, and suitable to be installed in severe environmental conditions (-40c to +60c) and works on batteries, applicable only for critical locations, along with fixing arrangement, data transmission and management system, all other ancillary works, material, machinery, labour, etc., with all leads and lifts and as directed by engineer-in-charge.
Description :rate call notice no.5 for 2026-27 421601 : bhatsanagar
open tender
ce-water resources dept. konkan region mumbai||se thane irrigation circle thane||ee bhatsa dam management division bhatsanagar
4
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Submission Date
22 SEP 2026
Opening Date
24 SEP 2026
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