Journal Published Online: 23 March 2010
Volume 33, Issue 3

In Situ Dynamic Model Test for Pile-Supported Wharf in Liquefied Sand

CODEN: GTJODJ

Abstract

Pile-supported wharf is a general option in port design to provide lateral resistance and bearing capacity under both static and dynamic loadings. In situ large-scale physical modeling using surface wave generator was performed to study the dynamic soil-structure interactions in pile-supported wharves and to verify configuration of an in situ monitoring station. A wharf model consisting of two steel pipe piles welded on a steel slab was installed on a reconstituted underwater embankment. Due to screening of stress waves, the two piles are subjected to different loading conditions. Data reduction procedures were developed to analyze coupled shear strain-pore pressure generation behavior, pile responses, and soil-pile interaction characteristics. The results proved that the physical modeling can capture the interactions among the induced shear strain, generated excess pore pressure, and dynamic p-y behavior around piles. Preliminary results also show that evolutions of dynamic p-y curve with excess pore pressure variations should be included in soil-pile interaction modeling.

Author Information

Chang, Wen-Jong
Dept. of Civil Engineering, National Cheng Kung Univ., Tainan, Taiwan
Chen, Jyh-Fang
Harbor and Marine Technology Center, Institute of Transportation, Taichung, Taiwan
Ho, Hsing-Chuan
Geotechnical Engineering Research Center, Sinotech Engineering Consultants, Inc., Taipei, Taiwan
Chiu, Yung-Fang
Harbor and Marine Technology Center, Institute of Transportation, Taichung, Taiwan
Pages: 13
Price: $25.00
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Stock #: GTJ102425
ISSN: 0149-6115
DOI: 10.1520/GTJ102425