Coulomb、Rankine理论在扶悬臂式挡土墙计算中的应用

Application of theory of Coulomb and Rankine in calculation of overhanging wall

扶悬臂式挡土墙的土压力计算一般采用库仑模型和朗金模型.由于两种计算模型的前提条件不完全相同,所以其适用条件也不相同.以天津软土地区某工程为例,分别采用两种计算模型进行了计算,并对计算结果进行了比较,指出了两种模型在整体稳定性和构件强度验算方面的差异,而了解这些差异对扶悬臂式挡土墙的设计具有重要的参考价值.

Coulomb and Rankine soil pressure models are employed in the determination of soil pressure in the design of overhanging wall. But the two models have different presuppositions, therefore two models are suited for different ranges respectively. Taking the design of overhanging wall in Tianjin soft soil region for example, the soil pressure Of the overhanging wall is calculated by Coulomb and Rankine soil pressure models respectively. And the comparison of the two results are made. The differences in the whole stability and the checking-calculation of the wall intensity between two models are pointed out. Understanding these differences would be helpful for the design of the retaining wall.