基于统一强度理论的土压力公式

Formula for earth pressure based on unified strength theory

基于俞茂宏统一强度理论,考虑中间主应力效应,按照现有的极限状态分析方法,推导了土压力计算公式,Rankine土压力公式为其特例。按有效应力法与总应力法对土压力的计算公式进行了推导与分析,同时与已有文献的实例进行了对比分析。结果表明,得出的解答具有广泛代表性。

Based on the Yu Mao-hong's unified strength theory, the formulae for earth pressure was deduced through the analysis of limit state by considering the effect of the intermediate principal stress. The formulae include the methods of effective stress and total stress, which can be widely applied. The solution of Rankin earth pressure is a special case of the unified solutions.