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Volume 39 Issue 7
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XU Qian-wei, TANG Zhuo-hua, ZHU He-hua, WANG Gguo-fu, LU Lin-hai. Limit support pressure at excavation face of shield tunnels[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(7): 1234-1240. DOI: 10.11779/CJGE201707009
Citation: XU Qian-wei, TANG Zhuo-hua, ZHU He-hua, WANG Gguo-fu, LU Lin-hai. Limit support pressure at excavation face of shield tunnels[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(7): 1234-1240. DOI: 10.11779/CJGE201707009
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Limit support pressure at excavation face of shield tunnels

  • 1. Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 201804, China;
    2. Jinan Rail Transit Group Co., Ltd., Jinan 250101, China;
    3. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China

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  • Received Date: April 14, 2016
  • Published Date: July 24, 2017
    Graphical Abstract
    • Abstract
  • According to the limit support pressure at excavation face of shield tunnels, the principles for calculating the covered earth pressure of tunnels in different strata are proposed by comparing the theoretical calculation with the field measurement, and the limit state equation for excavation face stability is deduced by using the slice method to analyze the excavation face stability of shield tunnels. Hereby, the limit support pressure at excavation face of shield tunnel can be solved. Finally, based on the specific engineering practice, the aforementioned theories and methods are used in searching the critical sliding surface and calculating the limit support pressure. The research results are important in guiding the design and construction of shield tunnels.
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    • References (18)
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