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MODERN TUNNELLING TECHNOLOGY 2020, Vol. 57 Issue (4) :20-26    DOI:
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Application of Peripheral Strain and Squeezing Factor Methods in the Prediction of Large Deformation of Tunnel Surrounding Rocks
（1 Xuzhen Railway Co. Ltd., Weixin 657999; 2 China Railway Southwest Research Institute Co., Ltd. , Chengdu 611731）
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Abstract Squeezing deformation is an urgent problem to be solved in the construction of soft rock tunnel in the ar? ea with high ground stress, and deformation prediction is the key to controlling tunnel deformation under high ground stress. On the basis of previous research results, the grade and magnitude of large squeezing deformation of certain soft rock tunnel are predicted by squeezing factor method and peripheral strain method respectively, pertinence control measures are proposed, the predicted results agree with the measured values, providing a reference for the construction of similar projects.
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LIAO Yankai1 GUO Deping1 LIU Zhiqiang2 CHEN Dayang2
Keywords： Soft rock tunnel；High ground stress；Peripheral strain   Squeezing factor   Deformation prediction     
Abstract： Squeezing deformation is an urgent problem to be solved in the construction of soft rock tunnel in the ar? ea with high ground stress, and deformation prediction is the key to controlling tunnel deformation under high ground stress. On the basis of previous research results, the grade and magnitude of large squeezing deformation of certain soft rock tunnel are predicted by squeezing factor method and peripheral strain method respectively, pertinence control measures are proposed, the predicted results agree with the measured values, providing a reference for the construction of similar projects.
Keywords： Soft rock tunnel；High ground stress；Peripheral strain,   Squeezing factor,   Deformation prediction     
Cite this article:   
LIAO Yankai1 GUO Deping1 LIU Zhiqiang2 CHEN Dayang2 .Application of Peripheral Strain and Squeezing Factor Methods in the Prediction of Large Deformation of Tunnel Surrounding Rocks[J]  MODERN TUNNELLING TECHNOLOGY, 2020,V57(4): 20-26
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