论文部分内容阅读
Rankine、Coulomb土压力理论是最有名的两个经典理论,被广泛地应用于挡墙的土压力计算中,但是由于两种理论的基本假设不同,所适用的条件也略有不同。对于仰斜墙背情况下,Rankine理论无法直接计算墙背土压力,但对于墙后的超载以及地下水对土压力的影响考虑比较全面;Coulomb理论可以计算无粘性土在各种情况时的土压力,如墙背倾斜、填土面倾斜、墙背粗糙等,但在粘性土的情况也不能直接计算,需要做修正。笔者对两种土压力理论进行分析并修正,通过修正后的公式来计算仰斜墙背情况下的土压力。
Rankine, Coulomb The earth pressure theory is the most famous two classical theories and widely used in the earth pressure calculation of the retaining wall. However, due to the different basic assumptions of the two theories, the applicable conditions are also slightly different. Rankine theory can not directly calculate the wall back pressure in the case of tilted back wall, but it considers the overload behind the wall and the influence of groundwater on earth pressure more fully. Coulomb theory can calculate the earth pressure of non-cohesive soil under various conditions Such as the back of the wall tilt, fill the surface tilt, wall back rough, but in the case of clay can not be calculated directly, need to be amended. The author analyzes and corrects the two theories of earth pressure, and calculates the earth pressure under the condition of tilted back wall through the revised formula.