지오그리드 강성에 따른 성토지지말뚝공법의 동적거동 평가

초록

Geosynthetic Reinforcement Pile-supported(GRPS) embankment is a method to restrain the settlement of soft ground and increase pile efficiency as transferring upper load to piles. For the application of method, some countries suggest design methods through many studies but effect of dynamic loading has not established. In this paper, full-scale cyclic loading test is conducted with different strength of geosynthetics(Geogrid) in order to analyze load transfer effect on piles from tensile strength of geogrid and arching by train loads. The result of tests indicated that GRPS case using high strength of geogrid has a greater effect of load transfer on piles from their tensile.