Consolidation of Clay with a System of Vertical and Horizontal Drains
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 129, Issue 9
Abstract
Consolidation of inhomogeneous clay with a system of horizontal and vertical drains is considered. Horizontal drains in the system are made of multiple thin pervious layers such as sand layers and geotextile sheets, while vertical drains are vertical cylindrical drains. Consolidation behavior with the drain system is formulated using the transfer matrix method. Special care is given to formulation of thin pervious layers for efficient computation. The developed formulation is verified using available numerical and field information. Parametric studies are conducted to study the consolidation characteristics of clay with the drain system. Based on the findings, a design method for an optimum system of horizontal and vertical drains is proposed and design charts are presented for such a design.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 129 • Issue 9 • September 2003
Pages: 838 - 848
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Jun 25, 2001
Accepted: Nov 6, 2002
Published online: Aug 15, 2003
Published in print: Sep 2003
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