Abstract
The effect of tunneling on existing buried pipes is a problem which engineers designing and practicing in urban geotechnical environments encounter more frequently than in the past. However, previous methods are usually based on the assumption that the ground is homogeneous. This paper presents displacement controlled method to analyze the tunnel-soil-pipe interaction based on the layered half space soil model, which can solve the problem subjected to multi-layered non-homogeneous soils. The accuracy of the proposed method is verified by the results from displacement controlled finite element method. The results discussed in this paper indicate that the proposed method is a valid approach with higher precision to analyze response of existing pipe induced by tunneling in the layered soils and the effects of soil stratification should be considered.
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