Application of the geosyntheitc reinforced pile supported enbankmnet for concrete track

초록

The design criteria of residual settlement are limited to 30mm or less for railway concrete track. It is very difficult to satisfy these standard using traditional methods. The geosynthetics reinforced pile supported embankment method (GRPS) is an innovative ground reinforcement method which uses piles and geosynthetics. It has very high performance about constrain of settlement, cost and construction period. Since the prediction of the settlement is difficult, it is usually over designed. So, it is need to consider calculation method which provides the reasonable prediction value. In this paper, numerical studies were conducted using FLAXIS software to identify the residual settlement characteristics of each design condition for the GRPS. The design condition clarifies the design method and embankment height. Residual settlement is estimated during the 630 days period.