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MODERN TUNNELLING TECHNOLOGY 2016, Vol. 53 Issue (6) :227-231    DOI:
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Discussion of the Large Deformation Mechanism and Control Measures for a Soft Rock Tunnel under High Ground Stress: A Case Study of the Muzhailing Tunnel
(1 China Railway Tunnel Survey & Design Institute Co. Ltd., Tianjin 300133; 2 China Railway Academy Co. Ltd., Chengdu 611731)
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Abstract Large deformation of tunnels in soft rock is a common and major engineering geological hazard that se? verely hampers construction progress and safety. In this paper, using the Muzhailing tunnel on the newly-built Lanzhou–Chongqing railway as an example, the large deformation mechanism of soft rock tunnels is analyzed from the aspects of lithology, underground water, geological structure, ground stress and construction technology, and the failure characteristics of large surrounding rock deformation in the Muzhailing tunnel and corresponding measures are elucidated.
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吕Xian-Fu- 1 Zhao-Zhan-Qun- 2 Wei-Xing-Xing- 2
Keywords： Soft rock tunnel   High geostress   Deformation mechanism   Control measures     
Abstract： Large deformation of tunnels in soft rock is a common and major engineering geological hazard that se? verely hampers construction progress and safety. In this paper, using the Muzhailing tunnel on the newly-built Lanzhou–Chongqing railway as an example, the large deformation mechanism of soft rock tunnels is analyzed from the aspects of lithology, underground water, geological structure, ground stress and construction technology, and the failure characteristics of large surrounding rock deformation in the Muzhailing tunnel and corresponding measures are elucidated.
Keywords： Soft rock tunnel,   High geostress,   Deformation mechanism,   Control measures     
Cite this article:   
吕Xian-Fu- 1 Zhao-Zhan-Qun- 2 Wei-Xing-Xing- 2 .Discussion of the Large Deformation Mechanism and Control Measures for a Soft Rock Tunnel under High Ground Stress: A Case Study of the Muzhailing Tunnel[J]  MODERN TUNNELLING TECHNOLOGY, 2016,V53(6): 227-231
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