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Apr 26, 2012
Numerical Simulation of Soil-Pile Interaction in Expansive Soils Foundation
Authors: Chun-Shun Zhang [email protected], Yong-He Wang, Hong-Bin Xiao, and Zhen-Hui FanAuthor Affiliations
Publication: Soils and Rock Instrumentation, Behavior, and Modeling: Selected Papers from the 2009 GeoHunan International Conference
Abstract
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 approx. 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
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© 2009 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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School of Civil Engineering and Architecture, Central South University, Shaoshan Road, Changsha, 41007, People's Republic of China Email: [email protected] and Geotechnical Engineering Center, Sydney University, Darlington, NSW, 2006, Australia. E-mail: [email protected]
Yong-He Wang
School of Civil Engineering and Architecture, Central South University, Shaoshan Road, Changsha, 41007, People's Republic of China
Hong-Bin Xiao
School of Civil Engineering, Hunan University of Technology, Wenhua Road, Zhuzhou, 410082, People's Republic of China
Zhen-Hui Fan
School of Civil Engineering and Architecture, Central South University, Shaoshan Road, Changsha, 41007, People's Republic of China
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