Advancing Research on Spiral Pull Self Walking Tunneller

LU Qing-guo; YAO Xu-fei; LU: Xue-gang

doi:10.11936/bjutxb2014120051

Journal of Beijing University of Technology > 2015 > 41(8): 1179-1185. > DOI: 10.11936/bjutxb2014120051

LU Qing-guo, YAO Xu-fei, LU: Xue-gang. Advancing Research on Spiral Pull Self Walking Tunneller[J]. Journal of Beijing University of Technology, 2015, 41(8): 1179-1185. DOI: 10.11936/bjutxb2014120051

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Advancing Research on Spiral Pull Self Walking Tunneller

College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China

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Received Date: December 23, 2014
Available Online: January 10, 2023

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A self-advancing tunneller used in the soil can march forward independently by the axial pull force resulted from spirals' rotation in soil. This paper aimed to solve the problem of self-advancing feasibility of the tunneller in various soil layer and spirals' ultimate pull. By means of theory of MohrCoulomb,the theoretical equation of ultimate pull provided by spirals' rotation in soil was deduced using integral analysis and making calculation by combining resistance equation. The results show that the selfadvancing tunneller can realize self-advancing in cohesive soil and in improved sandy soil.
- tunnel in soil,
- spiral pull,
- self walking tunneller,
- cylinder resistance

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