Abstract
High strength geosynthetics is a new reinforcement material, which is used as reinforcing a embankment, by laying the material to the lower part of the embankment. It is used in the case that the stability of embankment cannot be secured when the embankment is built on soft ground, in the same way with wire net laying method. In recent years, the embankment reinforcement using this new material has been increasing at expressway construction sites of the Japan Highway Public Corporation. From the construction results, it becomes clear that an actual measurement value of the tension occurred in the material shows rather small value compared with the design value. In this paper, in order to verify the effectiveness of the embankment reinforcement, a fundamental study was conducted on strength occurrence mechanism of a composite body of soil and high strength geosynthetics by using large-size box shear testing equipment.
