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Mechanical behaviour of soil under drying-wetting cycles and vertical confining pressure
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Chao, Z., Shi, D. and Fowmes, G. J. (2023) Mechanical behaviour of soil under drying-wetting cycles and vertical confining pressure. Environmental Geotechnics . doi:10.1680/jenge.22.00048 ISSN 2051-803X. (In Press)
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Official URL: https://doi.org/10.1680/jenge.22.00048
Abstract
A system for preparing soil specimens subjected to drying-wetting cycles whilst under vertical confining pressures is introduced with Clayey soil specimens subjected to different drying-wetting histories, then the relative performance tested using consolidated undrained triaxial shear tests. Meanwhile, their soil water retention properties were also measured. The experimental results indicate that drying-wetting cycles lead to a rise in the matric suction for soil with high moisture content, and the decrease of matric suction for soil with low moisture content. Partly owing to the higher pore water pressure, peak shear strength reduces gradually during drying-wetting cycles. The impacts of drying-wetting cycles on hydro-mechanical properties of soil specimens during the first cycle are larger than those during the second and the third cycles as the highest matric suction of soil occurs during the first cycle. Vertical confining pressure is shown to limit the impact of drying-wetting cycles on the hydro-mechanical properties of soil effectively because of its restricting effects on the volumetric deformation of soil during the cycles.
Item Type: | Journal Article | ||||||||||||||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Clay soils , Clay, Soils, Shear strength of soils | ||||||||||||||||||
Journal or Publication Title: | Environmental Geotechnics | ||||||||||||||||||
Publisher: | ICE Publishing | ||||||||||||||||||
ISSN: | 2051-803X | ||||||||||||||||||
Official Date: | 30 March 2023 | ||||||||||||||||||
Dates: |
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DOI: | 10.1680/jenge.22.00048 | ||||||||||||||||||
Status: | Peer Reviewed | ||||||||||||||||||
Publication Status: | In Press | ||||||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||||||||||
Date of first compliant deposit: | 20 March 2023 | ||||||||||||||||||
Date of first compliant Open Access: | 30 March 2024 | ||||||||||||||||||
RIOXX Funder/Project Grant: |
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