Calculation of passive earth pressures on retaining wall considering soil arching effects of backfill clayey soil

ZHOU Xiao-long; MA Kang; QIAN Ming; LIU De-wen; ZHAO Qi

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Calculation of passive earth pressures on retaining wall considering soil arching effects of backfill clayey soil

更新时间：2026-06-25

- Calculation of passive earth pressures on retaining wall considering soil arching effects of backfill clayey soil
- Vol. 35, Issue S1, (2014)
- 作者机构：
  
  1. ．杭州科技职业技术学院城市建设学院,杭州,311402
  2. 厦门大学土木工程系,福建,厦门,361005
  3. 中国石油天然气华东勘察设计研究院岩土工程处,山东,青岛,266071
  4. 西南林业大学土木工程学院,昆明,650000
  5. 北方工业大学建筑工程学院,北京,100144
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU47
- Online First：20 June 2014，
  
  Published：2014
- 稿件说明：
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ZHOU Xiao-long, MA Kang, QIAN Ming, et al. Calculation of passive earth pressures on retaining wall considering soil arching effects of backfill clayey soil[J]. 2014, 35(S1).
DOI：

ZHOU Xiao-long, MA Kang, QIAN Ming, et al. Calculation of passive earth pressures on retaining wall considering soil arching effects of backfill clayey soil[J]. 2014, 35(S1). DOI：

摘要

为解释挡土墙后填土被动土压力的非线性分布现象，在考虑土拱形状为圆弧，滑裂面采用朗肯滑裂面的基础上，给出考虑土拱效应的被动土压力系数Kawn，进而基于应力状态法及土楔形体静力平衡两种思想求解了竖向平均应力公式，在该基础上，给出黏性土填料下的挡土墙被动土压力分布公式、合力公式及作用点高度计算公式。通过与试验与其他方法对比，文中提出的方法得到验证。最后，研究了黏性土填料下的挡土墙被动土压力变化规律，即考虑土拱效应求得的黏性土填料的被动土压力分布呈现上小下大的指数型分布。此外，随着δ/φ（δ为墙土摩擦角，φ为内摩擦角）的增大，土拱效应逐渐增强，土压力合力点逐渐降低。

Abstract

The nonlinear phenomenon which the passive earth pressure behind the retaining wall of both sand and cohesive soil is nonlinear distribution could be explained by the soil arching effect theory. The formula which calculated passive earth pressure coefficient of which assumed the stress state method and the soil wedge static equilibrium method were derived considering the soil arching effect

assumed arch as circle and the angle of slip surface as Rankine’s theory. Then

the distribution of lateral earth pressure considering the soil arching was derived by the above formulations; also the formulas that calculating the magnitude and the point of application of lateral passive earth pressure were derived. The accuracy of proposed method is confirmed by comparing with the experimental tests and values from existing equations. Finally

the trends of distribution and the height of total passive earth pressure of clayey soil are studied; distribution of passive earth pressures considering the soil arching is likely an exponential curve; and the height of resultant earth pressure point is gradually reducing with increasing the ratio of soil-wall friction angle to internal angle δ/φ.

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Key Laboratory of Soft Soils and Geoenvironmental Engineering, Ministry of Education, Zhejiang University

Key Laboratory of Soft Soils and Geoenvironmental Engineering of Ministry of Education, Zhejiang University

Chongqing Zhonghuan Construction Co., Ltd.

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