减小刚性挡土墙重度以计算主动土压力的有限元法

Finite Element Method For Calculations of Active Earth Pressures by Reducing Densities of Rigid Retaining Walls

利用著名非线性有限元分析软件ABAQUS进行了算例模拟计算,揭示了达到主动土压力状态时,刚性挡土墙的实际位移方式,并与经典的朗肯和库仑主动土压力进行了对比与分析,说明了该方法较朗肯和库仑理论更加可靠,适用性更广,同时可方便地实现刚性挡土墙的设计,提高设计计算效率,因而具有工程应用价值。

Computations of several engineeringcases by using the commercial non--linear finite element analysis program, i. e, ABAQUS were performed. The real displacement modes of rigid retaining wall were opened out. And;the calculation results were compared with the classical Rankine and Coulumb active earth pressures or measurements, it showed that this method.was more reliable than Rankine and Coulumb theory, and has more wide--range applicability. Meanwhile, the designs of the rigid ：retaining walls can be made con.veniently so as to improve the design and calculation efficiency. Therefore, it＇s valuable tO be popularized wildly.