Study on Construction of Long Span and Soft Rock Tunnel with Numerical Simulation

Abstract:

With characteristics of the long span and soft rock tunnel, this paper analyzes the main factors affecting tunnel stable on the basis of the way of tunnel excavation method. The large finite element program is used in research of a tunnel, with a numerical simulation of two different way, top heading and bench method and double side drift method. From the result of stress field and displacement field of the tunnel , some useful conclusion are obtained, that double side drift method is appropriate for this kind of soft rock tunnel.

• Periodical: Applied Mechanics and Materials (Volumes 438-439)
• Pages: 964-967
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.438-439.964
• Online since: October 2013
• Authors: Bin Zhu, Xiao Jing Shi
• Keywords: Excavation Method, Finite Element Method (FEM), Long Span, Soft Rock Tunnel

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