Open Access

ARTICLE

Stability Analysis of Landfills Contained by Retaining Walls Using Continuous Stress Method

Yufang Zhang¹, Yingfa Lu^2,*, Yao Zhong², Jian Li¹, Dongze Liu²

1 China Academy of Railway Sciences Corporation Limited, Beijing, 100081, China
2 School of Civil, Architecture and Environment, Hubei University of Technology, Wuhan, 430068, China

* Corresponding Author: Yingfa Lu. Email:

(This article belongs to the Special Issue: Computational Mechanics Assisted Modern Urban Planning and Infrastructure)

Computer Modeling in Engineering & Sciences 2023, 134(1), 357-381. https://doi.org/10.32604/cmes.2022.020874

Received 16 December 2021; Accepted 07 March 2022; Issue published 24 August 2022

Abstract

An analytical method for determining the stresses and deformations of landfills contained by retaining walls is proposed in this paper. In the proposed method, the sliding resisting normal and tangential stresses of the retaining wall and the stress field of the sliding body are obtained considering the differential stress equilibrium equations, boundary conditions, and macroscopic forces and moments applied to the system, assuming continuous stresses at the interface between the sliding body and the retaining wall. The solutions to determine stresses and deformations of landfills contained by retaining walls are obtained using the Duncan-Chang and Hooke constitutive models. A case study of a landfill in the Hubei Province in China is used to validate the proposed method. The theoretical stress results for a slope with a retaining wall are compared with FEM results, and the proposed theoretical method is found appropriate for calculating the stress field of a slope with a retaining wall.

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Keywords

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