基于库仑理论的平面滑裂面假设,采用斜向条分法推导考虑滑裂面上填土的黏聚力、墙土间黏着力、均布超载条件下的黏性土主被动土压力合力及其作用点位置、土压力强度计算式,并给出临界破裂角的显式解答。分析结果表明:斜向条分法有效验证库仑理论假设土压力强度沿墙高线性分布的合理性,且现行经典朗肯和库仑土压力理论计算式皆为该公式在相应简化条件下的特例,对应用条分法计算土压力做了重要补充。 Based on the Coulomb theory of plane slip plane hypothesis, the oblique slice method was used to deduce the cohesion of the fill plane, the cohesion between the wall and the soil, the resultant of the passive and earth pressures of the cohesive soil under uniform load and Its action point position, earth pressure intensity formula, and gives the explicit solution of the critical fracture angle. The analysis results show that the oblique slice method effectively verifies the rationality of Coulomb’s theoretical assumption that the earth pressure intensity is highly linear distributed along the wall, and both the classical Rankine and Coulomb earth pressure theoretical formulas are the special cases under the corresponding simplified conditions. The application of sub-method to calculate the earth pressure made an important supplement.