Installation of safety Barricades on the Bank of the Damodar and the Bhairavi river at the campus of Maa Chhinnamastika Mandir, Rajrappa, Block-Chitarpur, Dist -Ramgarh

Earth work in excavation of cut-off trenches as per designed section in soft rock or ordinary rock (Vide classification of soil item-C) with disposal of spoil (beyond 50 m away from the toe of dam on country side) with initial lead of 150m and lift of 1.5m including makig the section in profile dressing sides in proper slopes and bed in proper grade etc all complete as per specification and direction of E/l. (Soft rock where blasting is required and approved by the concerned Chief Engineer) (WRD 5.1.10.1)

Core drilling of NX(53mm to 75mm) size by rotary core drilling machine up to 20m depth in all kinds of hard rocks including finishing and maintenance of core (minimum 80% core recovery in hard rock is essential) and sludge etc.for foundation exploration only, complete as per specification and direction of E/I. (WRD 5.2.1.1)

Grouting of dam foundation per bag cement all complete as per specification and direction of E/I. (WRD 5.3.13)

Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland/Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength, including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete. Note: Extra cement up to 10% of the minimum specified cement content in design mix shall be payable separately. In case the cement content in design mix is more than 1.10 of the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement. All works upto plinth level 1.1Concrete of M25 grade with minimum cement content of 330 kg/cum (BCD 5.3.26.1.1).

Centering and shuttering including strutting, propping etc. and removal of form for Foundations, footings, bases of columns, etc. for mass concrete (BCD 5.3.17.1)

Fabrication arrangement for each Vertical Post including S/F/F of anchor bolts, base plates, stiffener and caps. (Rate analysis attached in detailed estimate)

Providing and fixing stainless steel ( Grade 304) railing made of Hollow tubes, channels, plates etc., including welding, grinding, buffing, polishing and making curvature (wherever required) and fitting the same with necessary stainless steel nuts and bolts complete, i/c fixing the railing with necessary accessories & stainless steel dash fasteners , stainless steel bolts etc., of required size, on the top of the floor or the side of waist slab with suitable arrangement as per approval of Engineer-in-charge, (for payment purpose only weight of stainless steel members shall be considered excluding fixing accessories such as nuts, bolts, fasteners etc.). (DSR 10.28)

Providing Tor steel reinforcement of 10mm,12mm,& 16mm. dia bars as per approved design and drawing with cutting, bending and binding with annealed wire with cost of wire removal of rust,placing the rods in position (including carriage of bars to work site) all complete as per building specification and direction of E/I. (a) 10mm (TMT coil Fe 500) (only valid for Tata (Tiscon), SAIL, JSPL,Electrosteel Steels Ltd. Bokaro and Vizag (RINL)} (BCD 5.5.5.(a))

Providing and fixing of retro- reflectorised cautionary, mandatory and informatory sign as per IRC :67 made of class-B Type IV retro reflective sheeting fixed cover 2 mm thick aluminium sheeting vide clause 801.3, 3mm/4mm thick aluminium composite material sheet depending on the size of the sign fixed over back support frame of min 25 x 25 x 3 mm Angle mounted on a mild steel circular pipe 65 NB, 3.2 mm thickness firmly fixed to the ground by means of properly designed foundation with M25 grade cement concrete 45 cm x 45 cm x 60 cm, 60 cm below ground level as per approved drawing. The sign shall be maintained as per section 12 of IRC 67: 60 cm x 45 cm rectangular (RCD 8.04 A (xii))

Pull out Test conducted at site for assessing the anchor load bearing capacity and checking the designed FAL of particular anchor.(Non Schedule Item- Rate approved by SE MI Circle Hazaribagh dated 11.06.26):- Fixed anchor length (F.A.L) taken is 2 M for very good rock condition as per BIS Code IS 14448:1997. Any changed as per site condition should be approved from competent authority.