桩板墙挡土板土压力计算研究

基于挡土板后土的土拱效应及板后土体的破坏范围，运用有限土体土压力理论，合理拱轴线几何特征及摩尔-库仑强度准则，根据板后土体静力平衡，建立挡土板后土压力的计算模型。以工程实例对推导的土压力计算公式进行验证，并与其他计算方法进行比较，结果表明:此计算方法得出的土压力在上部小于零，下部介于其他计算方法中间，更为符合实际情况。

Study on Calculation of Earth Pressure on Retaining Plates of Sheet Pile Walls

Based on the soil arching effect and the failure range of the soil behind the retaining plate, the finite earth pressure theory and the geometric characteristics of the reasonable arch axis and the Mohr-Coulomb strength criterion are adopted, and the calculation model of the earth pressure behind the retaining plate is established according to the static balance of the soil behind the retaining plate. The derived earth pressure calculation formula is verified with an engineering example, and compared with other calculation methods. The results show that the earth pressure obtained by the calculation method in this paper is less than zero in the upper part and between other calculation methods in the lower part, which is more in line with the actual situation.