REVIEW ARTICLE


Estimation of the Passive Earth Pressure with Inclined Cohesive Backfills: the Effect of Intermediate Principal Stress is Considered



W. L. Yu*, 1, 2, J. Zhang1, R. L. Hu1, Z. Q. Li1, X. H. Sun2, R. X. Wang3, Y. Q. Wang4
1 Key Laboratory of Engineering Geomechanics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
2 Exploration and Development Research Institute, Daqing Oil Field Company Ltd., Daqing, Heilongjiang 163712, China
3 Beijing Orangelamp Navigation Technology Development Co., Ltd, Beijing 10085, China
4 Henan Provincial Communications Planning Survey and Design Institute Co., Ltd. Zhenzhou 450052, China


© 2010 Yu et al

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Key Laboratory of Engineering Geomechanics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China; Tel: +86-010-82998610 (Office), +86-13426310546 (Mobile); Fax: +86-010-82998610; E-mail: yuwenlong198676@163.com


Abstract

Estimating passive earth pressure accurately is very important when designing retaining wall. Based on the unified strength theory and plane strain assumption, an analytical solution has been developed to determine the passive lateral earth pressure distribution on a retaining structure when the backfill is cohesive and inclined considering the effect of the intermediate principal stress. The solution derived encompasses both Bell’s equation (for cohesive or cohesionless backfill with a horizontal ground surface) and Rankine’s solution (for cohesionless backfill with an inclined ground surface).

Keywords: Passive earth pressure, inclined backfill, unified strength theory, intermediate principal stress.