墙后填土倾斜时二次抛物线准则下粘土压力计算新解  

A new solution for calculating clay pressure under the quadratic parabolic criterion when the backfill behind the wall is tilted

作　　者：马迪 张文静 MA Di;ZHANG Wenjing(School of Civil Engineering,Xi’an Traffic Engineering Institute,Xi’an 710300,China)

机构地区：[1]西安交通工程学院土木工程学院,陕西西安710300

出　　处：《粘接》2024年第9期164-167,共4页Adhesion

基　　金：西安交通工程学院中青年基金项目(项目编号:2022KY-30)。

摘　　要：在计算挡土墙土压力时,挡土墙后填土面往往具有一定的倾角,倾角的存在及其大小会显著影响挡土墙土压力的研究计算。本文基于粘土的二次抛物线型强度准则,对墙后填土的极限平衡状态进行分析,进而推导出墙后填土倾斜时粘土的主动土压力以及被动土压力计算新解。研究结果表明,墙后填土倾斜时粘土的土压力呈非线性分布。随着其抗拉强度的增大,墙后填土的主动土压力减小,被动土压力增大;随着墙后填土倾角的增大,其主动土压力减小,被动土压力减小。When calculating the earth pressure of the retaining wall,the filling surface behind the retaining wall often has a certain inclination angle,and the existence and magnitude of the inclination angle will significantly affect the research and calculation of the retaining wall earth pressure.In this paper,based on the quadratic parabolic strength criterion of clay,the ultimate equilibrium state of the backfill behind the wall was analyzed,and then a new solution for calculating the active earth pressure and passive earth pressure of the clay when the backfill behind the wall was inclined.The research results indicated that the soil pressure on clay exhibits a nonlinear distribution when the backfill behind the wall was inclined.As the tensile strength of clay increased,the active earth pressure of the backfill behind the wall decreased,while the passive earth pressure increased.As the inclination angle of the backfill behind the wall increased,the active earth pressure of the clay decreased and the passive earth pressure decreased.

关 键 词：墙后填土倾斜 二次抛物线准则 主动土压力 被动土压力 

分 类 号：TQ174.42[化学工程—陶瓷工业] TU413[化学工程—硅酸盐工业]