Chapter
Jul 18, 2014
Evaluation of the Settlement of Embankment Supported by Cast-in-Place Concrete Tubular Piles
Authors: Feng Yu [email protected], Cheng-Jie Wu [email protected], Hong-Kai Liu [email protected], and Tang-Dai Xia [email protected]Author Affiliations
Publication: Characterization, Modeling, and Evaluation of Geotechnical Engineering Systems
Abstract
Cast-in-place concrete tubular piles have been recently introduced into road construction to serve as ground-improving columns that sustain a considerable portion of the embankment load. With respect of the characteristics of such piles in geometry and stiffness, traditional settlement-predicting approaches for composite ground may be no longer suitable. This study discusses the load-carrying behavior of composite ground with particular focus on the variation in the load share of piles. Based on the Mindlin's and the Boussinesq's solutions, a new model is developed to calculate the additional stresses generated respectively by the resistances of pile base, pile shaft and soil plug, as well as the surcharge directly acted on the ground. A case history is presented to demonstrate how the model works and also to examine the consistency between the measurements and predictions.
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© 2014 American Society of Civil Engineers.
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Published online: Jul 18, 2014
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Professor, School of Civil Engineering and Architecture, Zhejiang Sci-Tech University, Hangzhou 310018, China.E-mail: [email protected]
Research Student, Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China.E-mail: [email protected]
Assistant Engineer, China Liaohe Petroleum Engineering Co. Ltd., Panjin 124010, Liaoning, China.E-mail: [email protected]
Professor, Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China.E-mail: [email protected]
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