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Advances in Materials Science and Engineering
Volume 2015, Article ID 362160, 7 pages
Research Article

Stability of Three-Dimensional Slurry Trenches with Inclined Ground Surface: A Theoretical Study

1School of Civil Engineering, Southeast University, Nanjing 210096, China
2Architectural Design and Research Institute, Southeast University, Nanjing 210096, China

Received 29 April 2015; Accepted 24 May 2015

Academic Editor: João M. P. Q. Delgado

Copyright © 2015 Xiao-Fei Jin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Stability of slurry trenches is an important issue during the construction of the groundwater cutoff walls and diaphragm walls, and thus gradually draws attention. In this paper, a theoretical method for a three-dimensional trench model with an inclined ground was proposed. Based on the Coulomb-type force equilibrium, a safety factor assessing the stability was derived. The results showed that the existing two-dimensional model was conservative compared to the present three-dimensional model; concretely, a greater inclined angle of the inclined ground and trench length decreased the safety factor. This work could be used to assess the trench stability for both 2D and 3D cases with inclined ground surfaces.