The Coupling Elasto-Viscoplastic F.E.M.Analysis of Geosynthetic-Reinforced Clayey Soil Retaining Wall with Rigid Facing on the Soft Ground


Kenichi KOJIMA, Masaru TATEYAMA, Osamu MARUYAMA, Toyoji YONEZAWA
Geosynthetic-Reinforced Soil Retaining Walls with a rigid facing (GRS-RWs) can be constructed increasingly. The feature of the construction can use many kinds of backfill materials. But, in fact the backfill materials of most constructions are the sandy soil. In Nagano, the JAPAN RAILWAY CONSTRUCTION PUBLIC CORPORATION are constructing Hokuriku shinkansen car depot approximately about 100m wide and 2km long in use of GRS-RWs now. This construction has three special features, such as retaining wall on the very soft ground, the use of clay for the backfill material, and the use of composited geosynthetics. The result of soil / water coupling F.E.M. defromation analysis of GRS-RWs are reported in the paper.