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Volume 40 Issue S2
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CHENG Kang, YU Fan, LIANG Rong-zhu, LIN Cun-gang, XIA Tang-dai, XU Ri-qing. Horizontal deformation of adjacent single pile under tunneling considering shearing effect of piles[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(S2): 178-182. DOI: 10.11779/CJGE2018S2036
Citation: CHENG Kang, YU Fan, LIANG Rong-zhu, LIN Cun-gang, XIA Tang-dai, XU Ri-qing. Horizontal deformation of adjacent single pile under tunneling considering shearing effect of piles[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(S2): 178-182. DOI: 10.11779/CJGE2018S2036
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Horizontal deformation of adjacent single pile under tunneling considering shearing effect of piles

  • 1. Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China;
    2. Zhejiang Provincial Plan Design & Research Institute of Communications, Hangzhou 310006, China;
    3.Engineering Faculty, China University of Geosciences(Wuhan), Wuhan 430074, China;
    4.Tongji University, Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Shanghai 200092, China

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  • Received Date: July 21, 2018
  • Published Date: October 29, 2018
    Graphical Abstract
    • Abstract
  • The excavation of tunneling will release soil stress which affects the existing tunnels. To analyze the horizontal responses of the adjacent existing piles under tunneling, an analytical method is developed considering the shearing effect of piles. Firstly, the pile is considered as a Timoshenko beam resting on the Pasternak foundation, a two-parameter elastic foundation model, and by combining with the two-stage method, the equilibrium differential equation considering the shearing effect of piles is established. Secondly, the specific horizontal deformation of piles is given by using the finite difference method. Furthermore, by comparing with centrifuge test data and monitoring data, the validity of the theory is verified. Finally, a comparison is made between the results based on the Timoshenko beam and the Euler-Bernoulli beam, and its is found that the shearing effect of piles is closely related with the disturbance. The stronger the disturbance, The more obvious the shearing effect of piles. The results taking the shearing effect of piles into account are closer to the monitoring data.
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    • References (13)
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