粘性与粒状土回填加筋土挡墙的有限元分析

Fem analysis of reinforced segmental retaining walls with cohesive and granular backfills

采用ANSYS有限元通用程序包,对运用了拉伸性筋材的面板式加筋土挡墙的实际破坏机理进行了分析,将该程序所揭示的破坏机理和当前的设计方法进行对比,得出了对于粘性与粒状回填土在临近破坏时,衍变中的破裂面逐渐地转变成直线滑动状态的结论。

The actual failure mechanisms of the reinforced earth segmental walls with extensible reinforcements are studied with a FEM package program.The failure mechanism suggested by the program was compared with current design methods.It is concluded that for both cohesive and granular backfills,the developing failure surface is gradually shifted to a direct sliding mode as failure approached.