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Volume 43 Issue S2
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YANG Song-song, ZHU Xiang-xu, ZHANG Ding-wen, LI Shun, YU Peng-fei. Simplified estimation method and on-site analysis of thrust of EPB shield[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S2): 237-240. DOI: 10.11779/CJGE2021S2056
Citation: YANG Song-song, ZHU Xiang-xu, ZHANG Ding-wen, LI Shun, YU Peng-fei. Simplified estimation method and on-site analysis of thrust of EPB shield[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S2): 237-240. DOI: 10.11779/CJGE2021S2056
shu

Simplified estimation method and on-site analysis of thrust of EPB shield

  • 1.

    School of Transportation, Southeast University Nanjing 211189, China

  • 2.

    National Demonstration Center for Experimental Road and Traffic Engineering Education (Southeast University), Nanjing 211189, China

  • 3.

    China Construction Eighth Bureau Rail Transit Construction Co., Ltd., Nanjing 240046, China

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  • Received Date: August 18, 2021
  • Available Online: December 05, 2022
    Graphical Abstract
    • Abstract
  • Thrust is an important factor in shield construction safety during shield tunneling. In order to accurately estimate the thrust required during shield tunneling below the water level, the influences of water buoyancy on the force of shield tunneling are analyzed. The formula for calculating the shield thrust under the influences of water buoyancy is derived, and the relationship between the shield thrust and the torque is analyzed based on field measured data. The research results show that the deduced formula for the shield thrust can be in good agreement with the on-site shield thrust, and it can be used to calculate the thrust of the shield below the water level. The torque has a good linear relationship with the shield thrust, so the shield torque can be calculated through the thrust.
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    • References (11)
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