JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2017, Vol. 47 ›› Issue (2): 1-7.doi: 10.6040/j.issn.1672-3961.0.2017.073

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TBM tunnel segment dislocation due to large deformation and reinforcement mechanism on surrounding rockmass

CHEN Weizhong1, CHEN Feifei2, ZHAO Wusheng3, ZHANG Yuelin4   

  1. 1. School of Civil Engineering, Shandong University, Jinan 250061, Shandong, China;
    2. Second Highway Consultants Co., Ltd., China Communications Construction Corporation, Wuhan 430056, Hubei, China;
    3. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, Hubei, China;
    4. China Water Resources Beifang Investigation, Design and Research Co., Ltd, Tianjin 300222, China
  • Received:2017-02-10 Online:2017-04-20 Published:2017-02-10

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Abstract: Soft rock is a complex medium often encountered in rock engineering of major transportation, hydropower, mining engineering construction, squeezing or large deformation is commonly accounted in high in situ stress soft rock underground engineering, which not only affects the construction safety, but also prolongs the construction period and increases the cost. The disaster of large deformation has become a major issue to solve urgently in the field of transportation, water conservancy and deep resources development in China. From the example of Datong River into Huangshui River TBM extrusion segment dislocation caused by the large deformation, repair and control method of large deformation dislocation was suggested from back analysis of field measurement. The results had guiding significance for other expansive mudstone jamming accident and engineering segment dislocation of the turnaround.

Key words: reinforcement, dislocation, soft rock, squeezing deformation, segment

CLC Number: 

  • U455
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