Study of base friction simulation tests based on a complicated engineered bridge slope

Abstract

In this paper, a physical base friction test model of a slope is established. The model is based on similarity principles and the geological conditions of a complicated bridge slope during construction, deformation and failure. The behavior of the slope in both its natural state and during excavation loading is qualitatively analyzed through base friction tests. The base friction test results are then subjected to comparison and analysis using finite element numerical simulation. The findings show that the whole engineered slope tends to stabilize in its natural state, whereas instabilities will arise at faulted rock masses located near bridge piers during excavation loading. Therefore, to ensure normal construction operation of bridge works, it is suggested that pre-reinforcement of faulted rock masses be performed.

Keywords

base friction test / slope stability evaluation / bridge slope

References

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Acknowledgments

The authors gratefully acknowledge the financial support of this work, which was provided by the National Natural Science Foundation of China (No. 41172260 and 51108393), the Specialized Research Fund for the Doctoral Program of Higher Education (No. 20110184110018) and the National Basic Research Program of China (973 Program) (No. 2008CB425801). Technical input and support from Professors Fan-chao Meng, Xiao-dong Chen and Wei-ming Gong, and Doctor Jian-feng Cai are highly appreciated.

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg