Inverse Analysis of Geotechnical Parameters on Improved Soft Bangkok Clay
Publication: Journal of Geotechnical Engineering
Volume 118, Issue 7
Abstract
Deformation, strength, and flow parameters were determined by inverse analyses on geotechnical data obtained from two full‐scale test embankments constructed on improved soft Bangkok clay. One site was improved with prefabricated vertical drains (PVD), and an adjacent site was improved with compacted granular piles (CGP). In the PVD site, the ratio of (field) to (lab) ranged from 1.5‐4, and the value was The value of was about 10, with of 2.5. In the CGP site, the ratio of (field) to (lab) ranged from 1.3—12. The smeared zone was considered by reduction to CGP diameter by one‐fifth. The ratio of to was determined to be 150. The observed final settlements in the CGP site was 30‐35% lower than those in the PVD site. Using back‐analyzed soil parameters, the settlements of the test embankments were predicted well. Both ground improvement schemes are effective in improving the soft Bangkok clay.
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Information & Authors
Information
Published In
Journal of Geotechnical Engineering
Volume 118 • Issue 7 • July 1992
Pages: 1012 - 1030
Copyright
Copyright © 1992 ASCE.
History
Published online: Jul 1, 1992
Published in print: Jul 1992
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