Numerical simulation of soil-pile interaction in expansive soils foundation

Chun Shun Zhang, Yong He Wang, Hong Bin Xiao, Zhen Hui Fan

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

2 Citations (Scopus)


Analytic solution of load-transfer for single pile in expansive soil is completed based on shear-deformation method and superposition principle (Fan et al., 2007). As a complement of the research work, the numerical simulations have been done based on corresponding grogram in this paper. The results are shown as follows: increasing of pile length is able to effectively decrease the upward pile movement, but meanwhile, tensile forces of pile shaft increase as well; pile with small diameter (d ≈ 0.044L) can effectively reduce the upward pile movements in expansive soils while those piles with the diameter over 0.045L contribute little if not in vain; the applied load that act on pile-top for preventing upward pile movement depend on maximum swelling force, varying from different pile length and influenced zone; As irrigation proceeds, both the pile shaft displacement and tensile force increase while the increments of the both keep decreasing at the same interval. Given enough time, soils' swelling tends to be stable and so do the displacements and tensile forces of the pile shaft.

Original languageEnglish
Title of host publicationSoils and Rock Instrumentation, Behavior, and Modeling
Number of pages7
Publication statusPublished - 14 Dec 2009
Externally publishedYes
Event2009 GeoHunan International Conference - Soils and Rock Instrumentation, Behavior, and Modeling - Changsha, Hunan, China
Duration: 3 Aug 20096 Aug 2009

Publication series

NameGeotechnical Special Publication
ISSN (Print)0895-0563


Conference2009 GeoHunan International Conference - Soils and Rock Instrumentation, Behavior, and Modeling
CityChangsha, Hunan

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