Effect of the Inhomogeneity of a Substratum Soil on Longitudinal Settlements of a Shield Tunnel

Qian Yang; Jun Xing Zhang; Geng Ning Zhang

doi:10.4028/www.scientific.net/AMR.568.129

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 568Effect of the Inhomogeneity of a Substratum Soil...

Effect of the Inhomogeneity of a Substratum Soil on Longitudinal Settlements of a Shield Tunnel

Abstract:

In this paper, we perform a 3D finite element analysis for the longitudinal settlement of a shield tunnel in soft soil, where a substratum soil contains a soft layer. The Mohr-Coulomb model is used for the substratum soil and soft layer. The longitudinal settlements are calculated for different elastic modulus and longitudinal length of the soft layer. The results show that a softer and longer layer will result in the larger settlement. It is also found that the maximum of the longitudinal settlements is linear function of the elastic modulus of the soft layer.

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Periodical:

Advanced Materials Research (Volume 568)

Pages:

129-133

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.568.129

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Online since:

September 2012

Authors:

Qian Yang, Jun Xing Zhang, Geng Ning Zhang

Keywords:

Finite Element Method (FEM), Longitudinal Settlement, Substratum Soi, Tunnel in Soft Soil

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