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Volume 40 Issue 6
Nov.  2021
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Article Navigation >  Bulletin of Geological Science and Technology  > 2021  >  40(6): 326-334
Dong Longlong, Mei Guoxiong, Wu Wenbing, Wang Lixing, Ruan Hengfeng. Numerical simulation of working characteristics of energy pile group under thermo-mechanical coupling[J]. Bulletin of Geological Science and Technology, 2021, 40(6): 326-334. doi: 10.19509/j.cnki.dzkq.2021.0632
Citation: Dong Longlong, Mei Guoxiong, Wu Wenbing, Wang Lixing, Ruan Hengfeng. Numerical simulation of working characteristics of energy pile group under thermo-mechanical coupling[J]. Bulletin of Geological Science and Technology, 2021, 40(6): 326-334. doi: 10.19509/j.cnki.dzkq.2021.0632
shu

Numerical simulation of working characteristics of energy pile group under thermo-mechanical coupling

doi: 10.19509/j.cnki.dzkq.2021.0632
  • Received Date: 01 Mar 2021
    Abstract
  • In order to study the working characteristics of energy pile groups, based on the Abaqus finite element simulation, assigns the average temperature of the heat transfer stable stage to the pile body for steady-state thermo-mechanical coupling calculation, and proposes a simplified analysis method for the bearing characteristics of energy pile groups.The reliability of this research method is verified through the comparative analysis with field data.Combined with an example, this method is used to analyze the bearing characteristics of energy group piles under the action of pure mechanical load and thermal coupling.The results show that the non-uniform settlement of the distributed symmetrical arrangement of energy piles in the pile group foundation is significantly less than that of the centralized arrangement, and the layout has a great influence on the response characteristics of the pile foundation structure.Under the condition of equal stiffness of pile foundation, the control effect of pile group tilt is better by increasing pile diameter and decreasing pile spacing.The research results of this paper can provide some reference value for the engineering application of energy pile group.

     

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