FAILURE OF A GEOTEXTILE RETAINING WALL CAUSED BY HEAVY RAIN

Abstract

In December, 1985. We built a multiple anchored retaining wall of 5m in height, using geotextile. In order to study the effects of surcharge on the geotextile faced retaining wall, a fill-up was made on this retaining wall in June. 1986. The surcharge consisted of three different types retaining walls and a slope. And it was made 5m in height using cohesive soil.
In August 5. 1986, one of the retaining walls. multiple anchored geotextile retaining wall with 2m long steel bar anchors collapsed due to a heavy rain. approximately 240mm per 20 hours and resultant percolating water.
The mechanism of rupture are investigated.