GEOSYNTHETIC BASED SCOUR PROTECTION AROUND THE SLENDER PILE UNDER WAVES

Conventional and geosynthetic scour protections around the slender pile under the waves were experimentally studied in the laboratory flume. One layer dumped stones was used for conventional protection. As a geosynthetic supported protection, geogrid wrapped one layer stones and geomembrane applications under the stone layer were used for protection around the pile. Experiments show that stones behave individual and turn, slide and roll through scour at the edge of protection at conventional random stone dump. Geogrid wrapped stone layer shows elastic behavior against edge scour and supplies better protection then classical way and geomembrane solution. Geomembrane which spreads under the stone layer also give better protection regarding classical way against edge scour although stones move over geomembrane and edges of membrane moves with waves.