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Stability analysis of shallow tunnels subjected to seepage with strength reduction theory

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Abstract

Based on strength reduction theory, the stability numbers of shallow tunnels were investigated within the framework of upper and lower bound theorems of limit analysis. Stability solutions taking into account of water seepage were presented and compared with those without considering seepage. The comparisons indicate that the maximum difference does not exceed 3.7%, which proves the present method credible. The results show that stability numbers of shallow tunnels considering seepage are much less than those without considering seepage, and that the difference of stability numbers between considering seepage and without considering seepage increase with increasing the depth ratio. The stability numbers decrease with increasing permeability coefficient and groundwater depth. Seepage has significant effects on the stability numbers of shallow tunnels.

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Authors and Affiliations

  1. School of Civil and Architectural Engineering, Central South University, Changsha, 410075, China

    Xiao-li Yang  (杨小礼) & Fu Huang  (黄 阜)

Authors
  1. Xiao-li Yang  (杨小礼)
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  2. Fu Huang  (黄 阜)
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Correspondence to Xiao-li Yang  (杨小礼).

Additional information

Foundation item: Project(200550) supported by the Foundation for the Author of National Excellent Doctoral Dissertation of China; Project(09JJ1008) supported by Hunan Provincial Natural Science Foundation of China; Project(200631878557) supported by West Traffic of Science and Technology of China

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Yang, Xl., Huang, F. Stability analysis of shallow tunnels subjected to seepage with strength reduction theory. J. Cent. South Univ. Technol. 16, 1001–1005 (2009). https://doi.org/10.1007/s11771-009-0166-4

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  • DOI: https://doi.org/10.1007/s11771-009-0166-4

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