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Nonlinear consolidation of vertical drains with coupled radial-vertical flow considering time and depth dependent vacuum pressure
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Liu, Si-jie, Geng, Xue-yu, Sun, Hong-lei, Cai, Yuan-qiang, Pan, Xiao-dong and Shi, Li (2019) Nonlinear consolidation of vertical drains with coupled radial-vertical flow considering time and depth dependent vacuum pressure. International Journal for Numerical and Analytical Methods in Geomechanics, 43 (4). pp. 767-780. doi:10.1002/nag.2888 ISSN 0363-9061.
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WRAP-Nonlinear-consolidation-vertical-drains-coupled-radial-vertical-Geng-2018.pdf - Accepted Version - Requires a PDF viewer. Download (1025Kb) | Preview |
Official URL: https://doi.org/10.1002/nag.2888
Abstract
The system of vacuum pressure combined with vertical drains to accelerate soil consolidation is one of the most effective ground improvement methods. The consolidation theories of soft soil improved by vertical drains including void ratio–dependent compressibility and permeability have been widely applied in practice to predict the consolidation behavior. In this paper, analytical solutions of the consolidation of vertical drains are derived incorporating the loss and propagating stage of vacuum pressure. In addition, special solutions are obtained for the cases of instantaneous surcharge loading and staged surcharge loading, based on the general solution. The solution is verified by ignoring the propagating stage of vacuum pressure formation and comparing it with an existing solution. The effects of vacuum pressure loss and propagating stage combined with other parameters are investigated through the ratio between excess pore water pressure and surcharge loading.
Item Type: | Journal Article | ||||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TC Hydraulic engineering. Ocean engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||
Library of Congress Subject Headings (LCSH): | Vertical drains, Soil consolidation, Soil mechanics -- Mechanical properties | ||||||||
Journal or Publication Title: | International Journal for Numerical and Analytical Methods in Geomechanics | ||||||||
Publisher: | John Wiley & Sons, Ltd. | ||||||||
ISSN: | 0363-9061 | ||||||||
Official Date: | March 2019 | ||||||||
Dates: |
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Volume: | 43 | ||||||||
Number: | 4 | ||||||||
Page Range: | pp. 767-780 | ||||||||
DOI: | 10.1002/nag.2888 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Reuse Statement (publisher, data, author rights): | "This is the peer reviewed version of the following article:Liu S, Geng X, Sun H, Cai Y, Pan X, Shi L. Nonlinear consolidation of vertical drains with coupled radial‐vertical flow considering time and depth dependent vacuum pressure. Int J Numer Anal Methods Geomech. 2018;1–14. which has been published in final form at https://doi.org/10.1002/nag.2888. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions." | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Date of first compliant deposit: | 21 November 2018 | ||||||||
Date of first compliant Open Access: | 27 December 2019 | ||||||||
Funder: | National Key Technology R&D Program of China, Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC) | ||||||||
Grant number: | 2016YFC0800200 (National Key Technology R&D Program of China), 51620105008 (NSFC), 51608482 (NSFC), 51478424 (NSFC) | ||||||||
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