1. PIPHW – main dam package – additional works – investigation, survey, preparation of designs etc., construction of rcc diaphragm wall end cutoff for spill channel, vibro stone columns and deep soil mixing in gap-ii, construction of ecrf dam gap-i including diaphragm wall cut off vibro stone columns and deep soil mixing, concrete dam gap III and slope protection words on the both sides of spillway and spill channel etc., of polavaram irrigation project – L.S contract system.
1. PIPHW – main dam package – additional works – investigation, survey, preparation of designs etc., construction of rcc diaphragm wall end cutoff for spill channel, vibro stone columns and deep soil mixing in gap-ii, construction of ecrf dam gap-i including diaphragm wall cut off vibro stone
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