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Volume 39 Issue 9
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ZHAO Ming-hua, NIU Hao-yi, LIU Meng, TAN Xin. Pile-soil stress ratio and settlement of composite ground with gravel piles in flexible foundation[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(9): 1549-1556. DOI: 10.11779/CJGE201709001
Citation: ZHAO Ming-hua, NIU Hao-yi, LIU Meng, TAN Xin. Pile-soil stress ratio and settlement of composite ground with gravel piles in flexible foundation[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(9): 1549-1556. DOI: 10.11779/CJGE201709001
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Pile-soil stress ratio and settlement of composite ground with gravel piles in flexible foundation

  • Institute of Geotechnical Engineering, Hunan University, Changsha 410082, China

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  • Received Date: May 07, 2016
  • Published Date: September 24, 2017
    Graphical Abstract
    • Abstract
  • The deformation mechanism of composite ground with gravel piles in flexible foundation is thoroughly studied, and the effect of a cross-sectional shear stress is introduced in the analysis of radial displacement mode considering the lateral bulging and integrity of the piles. Therefore, a bulging load transfer mode of gravel piles is established. Then, a differential equation for the bulging deformation of gravel piles in flexible foundation is derived based on the load transfer law. The pile-soil stress ratio and settlement flexible foundation are obtained. Finally, the proposed method is proved to be of certain rationality and feasibility through case studies and numerical simulations, and the parameter analysis indicates that increasing pile-soil modulus ratio and reducing the replacement rate will increase the pile-soil stress ratio, while the load level will affect the radial bulging deformation degree.
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    • References (17)
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