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Consolidation considering clogging
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Liu, Sijie, Cai, Yuanqiang, Sun, Honglei, Geng, Xueyu, Shi, Li and Pan, Xiaodong (2021) Consolidation considering clogging. International Journal of Geomechanics, 21 (1). 04020239. doi:10.1061/(ASCE)GM.1943-5622.0001898 ISSN 1532-3641.
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WRAP-consolidation-considering-clogging-Geng-2021.pdf - Accepted Version - Requires a PDF viewer. Download (5Mb) | Preview |
Official URL: http://dx.doi.org/10.1061/(ASCE)GM.1943-5622.00018...
Abstract
In land reclamation projects, the vacuum preloading method has been widely used to strengthen dredged fills by removing water. However, during the improvement process, clogging inevitably occurs in the drains and soils, hindering water drainage and causing inhomogeneous consolidation results. Therefore, it is essential to evaluate the effect of clogging on the consolidation behavior of dredged slurry at different radii. In this study, analytical solutions are derived under an uneven strain assumption to calculate the consolidation in the clogging zone and the normal zone, with time-dependent discharge capacity and clogging in the soil considered. Results calculated by the proposed solutions indicated that the clogging effect slows down the development of consolidation, reduces the final consolidation degree, and increases the difference between consolidations at different radii. It is found that the influence of the clogging effect's varies with the speed of the discharge capacity decay, the value of the initial discharge capacity of the drain, the permeability, and the radius of the clogging zone. Finally, a practical application of the proposed solution is discussed, and the proposed solution is suggested for the calculation of consolidation when treating high-water-content slurry.
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): | Dredging , Dredging spoil , Soil mechanics, Geotechnical engineering | ||||||||||||||||||||||||||||||
Journal or Publication Title: | International Journal of Geomechanics | ||||||||||||||||||||||||||||||
Publisher: | American Society of Civil Engineers | ||||||||||||||||||||||||||||||
ISSN: | 1532-3641 | ||||||||||||||||||||||||||||||
Official Date: | January 2021 | ||||||||||||||||||||||||||||||
Dates: |
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Volume: | 21 | ||||||||||||||||||||||||||||||
Number: | 1 | ||||||||||||||||||||||||||||||
Article Number: | 04020239 | ||||||||||||||||||||||||||||||
DOI: | 10.1061/(ASCE)GM.1943-5622.0001898 | ||||||||||||||||||||||||||||||
Status: | Peer Reviewed | ||||||||||||||||||||||||||||||
Publication Status: | Published | ||||||||||||||||||||||||||||||
Reuse Statement (publisher, data, author rights): | This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at: http://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0001898 | ||||||||||||||||||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||||||||||||||||||||||
Date of first compliant deposit: | 20 November 2020 | ||||||||||||||||||||||||||||||
Date of first compliant Open Access: | 20 November 2020 | ||||||||||||||||||||||||||||||
RIOXX Funder/Project Grant: |
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