【摘要】 基于相关联流动法则,确立了挡土墙后竖向分层填土的静力平衡关系,建立了竖向分层主动土压力关于滑动面夹角的数学模型。采用极限平衡理论计算,得到了主动土压力及其分布情况。研究结果表明:竖向土层的土压力沿墙体呈线性分布;滑动面夹角和主动土压力随着墙土摩擦角的增加而减小,主动土压力作用点到墙底的距离也有增加的趋势。该方法为挡土墙工程实际情况的计算提供了合理的途径。更多还原

【Abstract】 Based on the law of the correlated flow, the static equilibrium of vertical layered fill behind retaining wall is established, and the functional expression of the angle between sliding surface and vertical layered active earth pressure is derived. The magnitude and distribution of active earth pressure are calculated by limit equilibrium theory. The results show that the earth pressure of vertical soil layer distributes linearly along the wall, the angle between sliding surface and active earth pressure is decreased with the increase of friction angle of wall and soil, and the distance between active earth pressure action point and wall bottom is also increased. The method provide a reasonable way for calculating the actual situation of retaining wall engineering.更多还原