基于土拱效应原理求解挡土墙被动土压力

›› 2012, Vol. 33 ›› Issue (10): 2996-3000.

基于土拱效应原理求解挡土墙被动土压力

侯键^{1, 2}，夏唐代^{1, 2}，孔祥冰^{1, 2}，孙苗苗^{1, 2}

1.浙江大学岩土工程研究所，杭州 310058；2. 浙江大学软弱土与环境土工教育部重点实验室，杭州 310058

收稿日期:2011-05-21 出版日期:2012-10-10 发布日期:2012-10-19
通讯作者: 夏唐代，男，1965年生，教授，博士生导师，主要从事岩土工程及土动力学等研究工作。E-mail: xtd@zju.edu.cn E-mail:liuyefeng2@126.com
作者简介:侯键，男，1987年生，硕士，主要从事软土工程及土动力学等研究工作
基金资助:
浙江省重点创新团队支持计划资助(No. 2009R50050)

Passive earth pressure on retaining walls calculated by principle of soil arching effect

HOU Jian^{1, 2}, XIA Tang-dai^{1, 2}, KONG Xiang-bing^{1, 2}, SUN Miao-miao^{1, 2}

1. Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China; 2. Key Laboratory of Soft Soils and Geoenvironmental Engineering, Ministry of Education, Zhejiang University, Hangzhou 310058, China

Received:2011-05-21 Online:2012-10-10 Published:2012-10-19

摘要/Abstract

摘要： 对平移模式下的刚性挡土墙和滑裂面间的楔形土体处于被动极限平衡状态的应力进行分析，考虑墙面和滑裂面之间土体水平力平衡，运用土拱效应原理推导出被动土压力系数和滑裂面水平倾角。并根据水平单元土体的静力平衡条件建立平衡方程，提出被动土压力分布、土压力合力及其作用位置的公式。将公式计算结果与试验结果以及库仑、朗肯理论所得结果进行比较，结果表明，与试验结果接近，验证了所得计算方法的合理性。

关键词: 刚性挡土墙, 土拱效应, 平移模式, 被动土压力

Abstract: In the translational displacement mode, a stress of wedge soil between rigid retaining wall and sliding surface, which is in the passive state of limit equilibrium, is analyzed. Considering the horizontal equilibrium of the soil between the wall and the slip surface, the formula of passive earth pressure coefficient and the angle of failure line to horizontal are obtained by using the principle of soil arching effect. According to the equilibrium equation considering the static equilibrium conditions of horizontal unit of soil, the formula of the passive earth pressure distribution, the resultant earth pressure and the application point of resultant earth pressure on retaining wall are respectively set up. After comparing the computed result using the method mentioned above with the experiment results and the results obtained on the basis of Coulomb and Rankine theories, it is demonstrated that the calculating results agree well with the experimental results; and thus the calculating method obtained is verified rational.

Key words: rigid retaining wall, soil arching effect, translational displacement mode, passive earth pressure

中图分类号:

TU 431

侯键，夏唐代，孔祥冰，孙苗苗 . 基于土拱效应原理求解挡土墙被动土压力[J]. , 2012, 33(10): 2996-3000.

HOU Jian , XIA Tang-dai , KONG Xiang-bing , SUN Miao-miao . Passive earth pressure on retaining walls calculated by principle of soil arching effect[J]. , 2012, 33(10): 2996-3000.

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