Journal of Shanghai Jiao Tong University ›› 1998, Vol. 32 ›› Issue (11): 102-104.doi: 10.16183/j.cnki.jsjtu.1998.11.022

Special Issue: 王建华教授学报发文专辑


Study of Pile Groups Deformations on Softening of the Soils near Pile Shaft

Wang Jianhua1, Chen Shulin1,3, Tang Jianxin2   

  1. 1.School of Civil Engineering & Mechanics, Shanghai Jiaotong University, China
    2.Huizhou Building Construction Company, Guangdong, China
    3.Shandong Constructional Engineering Institute
  • Received:1998-04-15 Online:1998-11-01 Published:2021-04-25


In construction of heavy, large and high-rise buildings in soft soil region along the coast, and the platform of ocean engineering, the piles used generally has large slender ratio. The pile that has large slender ratio often causes soil soften near the pile shaft. The bearing capacity of pile foundations determined by normal design code would become unsafe when the soil near pile shaft softens. Based on the modified hyperbolic curve model, a formula suitable for studying the pile groups deformations as the soils near pile shaft soften is deduced in this paper. The method can be used as a theoretical basis for determining the bearing capacity of pile groups as the soils near pile shaft soften. The predicted results using present method are in good agreement with the in situ deformation curve of pile groups as the soils near pile shaft soften.

Key words: soil soften near pile shaft, settlement of pile groups, deformation prediction

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