中文摘要：

针对库仑土压力理论中图解法计算黏性土被动土压力过程繁琐及精度较低的问题，应用库仑平面滑裂面假定，考虑填土黏聚力及其与挡土墙墙背接触面上的黏着力，建立了可用于编程试算的黏性填土挡土墙的被动土压力计算公式．算例分析表明：对符合朗肯或库仑理论假设条件的情况，公式的计算结果与经典的朗肯或库仑公式相同；考虑与不考虑墙背上的黏着力，计算结果差异较大，该差异随着墙背上的黏着力增大而增大；公式计算简便快捷，精度可靠，易于在工程中推广应用．

英文摘要：

With regard to the complicated process and poor precision of using the graphical method of the Coulomb theory to calculate the passive earth pressure on cohesive soil, based on the hypothesis of the sliding plane, a formula of passive earth pressure on cohesive soil, which can be applied to the trial calculation by programming procedures, is proposed. It considers the cohesion force of filling soil and the adhesive force on interfaces of retaining walls. The case analysis shows that the calculated results are the same as those calculated by the Rankine or Coulomb theory under the conditions of the Rankine or Coulomb hypothesis. There is a great difference between the calculated results that consider the adhesive force and those that don＇t consider it, and the difference increases with the increase of the adhesive force on the interface of retaining walls. The present formula is convenient, reliable and easily applied in projects.