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Nhan đề: Soil-Pile Interaction in Horizontal Plane
Tác giả: Iai, Susumu
Tobita, Tetsuo
Donahue, Matthew
Nakamichi, Masato
Từ khoá: Displacement (mechanics)
Soil-pile interaction
Effective stress
Two-dimensional models
Pile tests
Model tests
Năm xuất bản: 2006
Tóm tắt: Two dimensional model tests are performed on a horizontal cross section of a soil-pile system in a pile foundation. The objective of the model tests is to evaluate local soil displacement field in the vicinity of the piles associated with a global displacement of soil around the pile foundation. Two dimensional effective stress analyses in horizontal plane are also performed to generalize the findings from the model tests. An effective stress model based on multiple shear mechanism is used through a computer code FLIP. Primary findings from this study are as follows: (1) In dry condition, displacement vectors are directed away from pile front, and displacement at pile side rapidly decreases with an increasing distance from soil-pile interface. In undrained condition, displacement field shows vortexes at pile side associated with push-out/pull-in pattern of displacements in front of and behind the pile. (2) Distribution of local soil displacement between piles deployed perpendicular to direction of global displacement of soil shows high strain concentration (i.e. discontinuity in displacement) at soil-pile interface.
Mô tả: Conference Information Workshop on Seismic Performance and Simulation of Pile Foundations in Liquefied and Laterally Spreading Ground March 16-18, 2005 | University of California, Davis, California, United States © 2006 American Society of Civil Engineers
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