Deformation Analysis and Primary Support Parameter Optimization:Case Study on Muzhailing Tunnel

Tunnel Construction ›› 2011, Vol. 31 ›› Issue (3): 320-324.

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Deformation Analysis and Primary Support Parameter Optimization:Case Study on Muzhailing Tunnel

LI Yanzong，GAO Pan，ZOU Chong，ZHANG Wenxin

Technology Center of China Railway Tunnel Group Co., Ltd., Luoyang 471009， Henan, China

Received:2011-01-25 Revised:2011-05-10 Online:2011-06-20 Published:2011-07-08

Abstract

Abstract:

The deformation control effect of different primary support thicknesses, different anchor bolt lengths and different steel arch intervals are compared and analyzed by means of numerical simulation analysis, with the construction of Muzhailing tunnel as an example. In the end, the regularity of deformation of Muzhailing tunnel induced by excavation is obtained and the primary support parameters are optimized. The paper can provide reference for similar projects in similar geology conditions and similar construction environment.

Key words: Muzhailing tunnel, numerical simulation, deformation, primary support, parameter optimization

LI Yan-Zong, GAO Pan, JU Chong, ZHANG Wen-Xin. Deformation Analysis and Primary Support Parameter Optimization:Case Study on Muzhailing Tunnel[J]. Tunnel Construction, 2011, 31(3): 320-324.

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Deformation Analysis and Primary Support Parameter Optimization:Case Study on Muzhailing Tunnel

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