2012•Building ScienceRequires access

3-d Analysis on the Effect of a Pit Excavation on Adjacent Subway Tunnel

Zheng Xian-chang

Abstract

The excavation of deep-large-foundation pit near metro line is very complex,and how to guarantee the stability and safety of nearby metro tunnel is the most important consideration during the excavation.By 3-D finite element analysis on different working conditions of this foundation pit excavation,the influence of deep foundation pit on the metro tunnel is evaluated in this paper.According to the analysis results,the adopted design scheme is safe and effective,and is the example to which the similar project construction may refer.

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Key concepts: Excavation, Foundation (evidence), Engineering, Geotechnical engineering, Metro station, Finite element method, Civil engineering, Structural engineering