Calculation of settlement of pile foundation based on conceptualization of pile shaft resistance

被引：0
|
作者：
Wang T. [1 ,2 ,3 ]
Liu J.-L. [1 ,2 ,3 ]
Chu Z. [1 ,2 ,3 ]
Wang X. [1 ,2 ,3 ]
机构：
[1] State Key Laboratory of Building Safety and Built Environment, Beijing
[2] China Academy of Building Research Foundation Institute, Beijing
[3] Beijing Engineering Technology Research Center of Foundation and City Underground Space Development and Utilization, Beijing
来源：
Yantu Gongcheng Xuebao/Chinese Journal of Geotechnical Engineering | 2021年 / 43卷 / 11期
关键词：
Additional stress coefficient; Additional stress of pile homogenization; Conceptualization; Pile foundation; Settlement calculation;
D O I：
10.11779/CJGE202111019
中图分类号：
学科分类号：
摘要：
Based on the conceptualization of pile shaft resistance, the method of Mindlin's solution to calculate the settlement of pile group foundation is studied. According to the thickness of the compressive layer, the stiffness contribution of the superstructure, the diversity of pile type in the variable stiffness leveling design and the settlement calculation of the composite pile foundation, a simple method for calculating the homogenized additional stress of the foundation pile is given in combination with the generalized mode of the specific lateral resistance distribution, different length-diameter ratios, and different pile spacings. The steps and rules for calculating the settlement of pile group foundation by the superposition layer summation method for the additional stress of pile homogenization are put forward. The settlement of pile groups is calculated by the proposed method for homogenized additional stress. Through the verification of engineering examples, compared with that of the Boussinesqs method for solid deep foundation and the equivalent action method, the calculated settlement is closer to the measured one. © 2021, Editorial Office of Chinese Journal of Geotechnical Engineering. All right reserved.
引用
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页码：2119 / 2126
页数：7
相关论文
共 8 条
  • [1] QIU Ming-bing, LIU Jin-li, QIU Ren-dong, Et al., Study on vertical additional stress coefficient for the single piles based on Mindlin's stress solution theory, China Civil Engineering Journal, 47, 3, pp. 130-137, (2014)
  • [2] LIU Jin-li, QIU Ren-dong, QIU Ming-bing, Et al., Behaviors of shaft resistance and tip resistance of piles under different conditions and conceptualization and application of distribution of shaft resistance, Chinese Journal of Geotechnical Engineering, 36, 11, pp. 1953-1970, (2014)
  • [3] LIU Jin-li, QIU Ming-bing, QIU Ren-dong, Et al., A layerwise summation method for settlement calculation of pile group based on the homogenized Mindlin stress, China Civil Engineering Journal, 47, 5, pp. 118-127, (2014)
  • [4] WANG Tao, CHU Zhuo, LIU Jin-li, Et al., Calculation of pile body compression based on pile shaft resistance conceptualization mode, Building Structure, 49, 17, pp. 130-135, (2019)
  • [5] WANG Tao, LIU Jin-li, WANG Xu, Homogenized additional stress coefficient of foundation piles based on generalized mode of pile shaft resistance, Chinese Journal of Geotechnical Engineering, 40, 4, pp. 665-672, (2018)
  • [6] LIU Jin-li, CHI Ling-quan, The modified model of pile-soil deformation calculation and variable rigidity design method for balance settlement, Chinese Journal of Geotechnical Engineering, 22, 2, pp. 151-157, (2000)
  • [7] MINDLIN R D., Force at a point in the interior of a semi-infinite solid, Physics, 7, 5, pp. 195-202, (1936)
  • [8] GEDDES J D., Stresses in foundation soils due to vertical subsurface loading, Géotechnique, 16, 3, pp. 231-255, (1966)
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