Survey Design Engineering Fabrication Supply Installation Testing and Commissioning of HDPE Pipe Debris Barrier Boom with pathway at Headworks Barrage LJHP Gantamulla and maintenance of Barrier for three years from the date of commissioning.

Amount

Survey, Design, Engineering of Pipe Boom Barrier (3 HDPE Pipe Type) at LJHP Barrage along with trash guard (Technical Details need to be mentioned in GTP) and anchoring / hooking arrangement of entire barrier with marine polyester ropes as envisaged in scope of work and GTP (complete in all respects) with provision of pathway and its safety arrangement. The barrier shall be engineered to withstand the massive load created due to massive surface water velocities coupled with heavy surface debris and floating trash, high winds and changing water levels and its Fabrication Approximate Barrier Boom Length is 300 Mtrs (+5%)

Earthwork evacuation by manual means over areas (exceeding 30cm and upto 2.5 mtrs in depth, 3 mtrs in width and 4 mtrs length including disposal of excavated earth upto 10 mtr from cutting edge, disposed earth to be levelled and neatly dressed. Hard Rock (Blasting Prohibited)

Providing and fixing 25mm dia 3.0 mtr long grouted anchor bars and providing of anchoring plates on the existing dividing wall to fix all the anchoring ropes from the downstream side of the boom.

Providing and fixing 25mm dia 1.25 mtrs long anchor bars (as per drawing)

Providing & laying in position cement concrete of specific grade excluding the cost of cantering & shuttering 1:2:4 ( 1 cement:2 Coarse Sand 4 graded stone aggregate 20mm nominal size

Centering and shuttering including strutting, propping etc. and then removal.

Reinforcement for RCC works including straightening, cutting, bending, placing in position and bending all complete Thermo Mechanically Treated bars.

Providing and fixing M25 stainless Steel High Strength Bolt 25 dia and 340mm long (Chemically Grouted)

Necessary hooking / safety protection arrangement for entire barrier to avoid overturning of barrier during massive trash accumulation, flooding or during lowering of Reservoir Level, high surface velocity.

Testing and commissioning of entire debris boom barrier

Supply of fiber boat having capacity of four persons and boat size 5rftX20rft with Ores, life jackets (4 jackets per boat), safety tubes( 4 tubes per boat), rope etc.