经典土压力理论的一般形式

General Form for Classical Eearth Pressure Theory

基于挡土墙墙背俯斜、粗糙且填土表面倾斜的情况,以粘性填土为研究对象,用静力平衡方法研究了挡土墙后滑动土楔体达到极限平衡状态时作用于墙背的土压力,提出了主动土压力和被动土压力的一般形式.一般形式的提出,使朗肯土压力理论和库伦土压力走向统一,使经典土压力理论得以完善,使挡土墙工程设计时的计算更加便捷.

Based on the hypothesis that the rear side of retaining wall is pitching and coarse, and the filling surface is gradient, taking viscous filling as the object of study and using the static balance method, a study has been conducted on the earth pressure on the rear side of retaining wall under the sliding wedge＇s limiting equilibrium condition, and generated a general form for active earth pressure and passive earth pressure. This general form leads to the unification of Coulomb＇s earth pressure theory and Rankine＇s earth pressure theory, and makes the classical earth pressure theory to consummate, and enables the computation for retaining wall＇s engineering design to be more convenient.