Geosynthetic anchorage trenches at the top of the slopes. Experimental studies and application

Abstract

Geosynthetic lining system on slopes requires anchoring at the top of the bank. Depending on the space available at the top of the slope and on the applied load, the anchorage trench may take on different geometries. Various design methods have been proposed in this field but experimental and numerical studies showed that no single formula was capable of describing the behaviour of all types of anchorage, even though some were close to the experimental results in certain cases. To complete the existing studies, experimental tests were carried out on an anchorage facility and in-situ to highlight mechanisms and to determine the best anchorage trench for a fixed length of geotextile.