Journal
GEOTEXTILES AND GEOMEMBRANES
Volume 28, Issue 6, Pages 525-535Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.geotexmem.2010.01.003
Keywords
Geosynthetics drain; Vacuum consolidation; Deformation; Finite element analysis
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The method of using a surface or subsurface soil layer as an air-sealing layer to carry out vacuum consolidation is referred to as the vacuum-drain method. A method of determining the vacuum-drain consolidation induced vacuum pressure distribution in the ground has been proposed based on unit cell finite element analysis results. With the calculated vacuum pressure distribution, a method for calculating the settlement-time curve and the lateral displacement profile at the edge of the vacuum consolidation area has been established. Finally, the proposed methods were applied to a project using the vacuum-drain method at Tokyo Bay in Japan. Comparing the calculated results with the measured field values indicates that the methods can be a useful tool for designing vacuum consolidation project. (C) 2010 Elsevier Ltd. All rights reserved.
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