Coulomb’s solution to seismic passive earth pressure on retaining walls
Coulomb’s solution to seismic passive earth pressure on retaining walls
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DOI：
10.1139/cgj-2012-0392
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发表时间：
2013-08
影响因子：
3.6
通讯作者：
Peng Xiang;ChenJing
中科院分区：
文献类型：
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作者：
Peng Xiang;ChenJing
传统的Mononobe-Okabe方法在实际中应用广泛，但它只适用于计算无粘性土的总地震土压力，而不适用于求解土压力分布。基于极限平衡理论，将充填土视为符合莫尔-库仑屈服准则的理想弹塑性材料，并假定塑性区内的一族滑移线为一组直线，即平面滑动面。考虑了墙体倾角、回填土坡角、土体粘聚力和摩擦角、墙体与土体之间的粘结力和摩擦角、均匀超载以及水平和竖向地震系数等影响因素。利用极限平衡法建立了更为合理的塑性土楔体分析模型，用于求解挡土墙上的地震被动土压力、滑动面上的土反力及其分布。几何和力学相似原理最早是由DIMM提出的。
The conventional Mononobe–Okabe method is widely used in practice, but is only applicable for calculating total seismic earth pressure of cohesionless soil, not for solving earth pressure distribution. Based on limit equilibrium theory, the backfill is considered to be an ideal elastic–plastic material that obeys the Mohr–Coulomb yield criterion, and a family of slip-lines in the plastic zone is assumed to be a group of straight lines, i.e., planar slip surfaces. Influencing factors including inclination of wall, slope angle of backfill, cohesion and friction angle of soil, adhesion and friction angle between wall and soil, uniform surcharge, and horizontal and vertical seismic coefficients are considered. A more reasonable plastic soil wedge analysis model is established to solve the seismic passive earth pressure on retaining walls, the soil reaction on slip surfaces, and their distributions by using the limit equilibrium method. The geometric and mechanical similarity principle is first proposed by dim...