No-tension構成モデルを用いた斜面上深礎杭基礎の水平支持力に関する数値解析

抄録

In order to develop the rational numerical method for predicting the deformation and failure of the pier foundation on slope, a series of nonlinear elasto-plastic FEM analyses were conducted to simulate the field experiment on the bearing capacity and failure deformation of pier foundation on rock slope under the lateral loading. In the analyses, rock was supposed to obey an elasto-perfectly Mohr-Coulomb plastic material with or without considering no-tension effect The results obtained from the FEM analyses were compared with those from the field experiment It was found that the load-displacement relation of the pier foundation obtained from the 3D-FEM analysis with considering the no-tension effect has a good agreement with the field experimental result In addition, the plastic failure mechanism of pier foundation on rock slope could be well simulated by the 3D-FEM analysis with the no-tension model.