Reef Breakwater Construction at Ullal, Mangalore.
Costruction of two offshore multipurpose artificial submered reefs to reduce coastal eroson at Ullal, Mangalore.
Making the perfect base for the two (2) offshore reefs in necessary to increase the soil bearing capacity. Soil stabilization work below foundation of reef breakwater at depth of 15 to 21m below seabed was a challenge.
DDIL deployed Cutter suction dredgers for levelling followed by ground stabilization work. To stabilize the soil Geotextile and Geogrid were layed along with laying peripherally two rows of Gabion bags and tying them mutually adjacent and across the breakwater with Nylon ropes to arrest lateral movement of soft founding soil. Geotextile laying in off-shore project is first time in India.
•Detailed hydrographic survey to ascertain actual sea bed and rock profiles in the dredging area using following equipments: •Single beam echosounder
DDIL completes project in compliance with high standards of safety.