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中文摘要：
在平面滑裂面假设的基础上,利用散粒体Ktter方程通过极限平衡分析得到了挡土墙背摩擦角为负时的被动土压力系数、被动土压力合力和被动土压力合力作用点高度的理论公式。分析了挡土墙倾角、填土内摩擦角、填土坡角和墙背摩擦角对被动土压力系数、土压力合力作用点高度的影响。与挡土墙背摩擦角为正时不同,墙背摩擦角为负时随摩擦角的增加,被动土压力系数减小。用图形和表格的形式给出了相应的结果,可为锚、输电线路基础受上拔荷载时设计所采用。
英文摘要：
Based on planar rupture surfaces hypothesis,the theoretical formula for calcualting the passive earth pressure coefficient,the resultant force of earth pressure and the application point of the resultant for the negative wall friction angle case is deduced by using the Ktter equation with limit equilibrium method of analysis.The effect of variation in wall batter angles,ground slope,wall friction angle and soil friction angle on the passive earth pressure coefficient,the application point of the resultant are considered in the analysis.It is unlike the positive wall friction angle case,the passive earth pressure coefficients decrease as the wall friction angle increase in the negative wall friction angle case.The results are presented in graphical and tabular formats which can be used for the design of anchor and transmission line foundation under uplift loading.
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