关键词: 库仑土压力系数, 简易计算方法, 填土内摩擦角, 墙背倾角, 坡角

Abstract: Based on the relations between coefficient of coulomb’s active earth pressure and internal friction angle, grading angle, slope angle, the rules between coefficient of coulomb’s active earth pressure and different parameters were analyzed. On the basis of algebraic method, a simplified solution of coefficient of Coulumb’s active earth pressure was deduced. Then the coulomb’s method and the simplified method were compared . The results show that for Coulomb solution, the maximum error of the simplified solution is less than 14 percent on the condition of 95 percent probability.

Key words: coefficient of coulumb’s active earth pressure;the simplified method, internal friction angle, grading angle, slope angle