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Apr 26, 2012
Centrifuge Investigation of Seismic Behavior of Pile Foundations in Soft Clays
Authors: Chunyang Liu, Hoda Soltani, Juan D. Pinilla, Kanthasamy K. Muraleetharan, Amy B. Cerato, and Gerald A. MillerAuthor Affiliations
Publication: Geo-Frontiers 2011: Advances in Geotechnical Engineering
Abstract
The seismic behavior of pile foundations in soft clays is a very complex problem with interacting piles, soils and superstructure. Using ground improvement, for example, Cement Deep Soil Mixing (CDSM), to restrict lateral displacements of piles during earthquakes is a viable, but not fully explored technique. This paper presents experimental methods and procedures for centrifuge tests on single piles with and without ground improvement under both static and dynamic loadings. The data collected from the centrifuge test were used to analyze the differences between piles in unimproved and CDSM-improved soft clay. The test results confirmed that the CDSM can improve the seismic behavior of pile foundations and demonstrated that the pile response is directly related to the size of the ground improvement zone.
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© 2011 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Chunyang Liu
Assistant Professor, Civil & Environmental Engineering, University of South Carolina, Columbia, SC 29208; former Research Associate, School of Civil Engineering & Environmental Science, University of Oklahoma, Norman, OK 73019
Hoda Soltani
Research Assistant, School of Civil Engineering & Environmental Science, University of Oklahoma, Norman, OK 73019
Juan D. Pinilla
Former Research Assistant, School of Civil Engineering & Environmental Science, University of Oklahoma, Norman, OK 73019
Kanthasamy K. Muraleetharan
Professor, School of Civil Engineering & Environmental Science, University of Oklahoma, Norman, OK 73019
Amy B. Cerato
Assistant Professor, School of Civil Engineering & Environmental Science, University of Oklahoma, Norman, OK 73019
Gerald A. Miller
Professor, School of Civil Engineering & Environmental Science, University of Oklahoma, Norman, OK 73019
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