NDLI: Multi-scale chemo-mechanical analysis of the slip surface of landslides in the Three Gorges, China

Content Provider	Springer Nature Link
Author	Zhao, Yu Cui, Peng Hu, LiangBo Hueckel, Tomasz
Copyright Year	2011
Abstract	Multi-scale chemo-mechanical effects and microscopic failure modes are explored in the evolution of strength change of slip surface. Direct shear equipments, scanning electro-microscope and X-ray diffraction are used to trace the change in strength of remodeled soils of slip surfaces in the Three Gorges area. Results show that there is a release of alkali metals and concentration of clay minerals on the surface. During the tests, potassium ions were released, the cementation was reduced, and the ratio of interlayer minerals varied associated with strength change. Accordingly, illites or montmorillonite-illite mixtures turned into montmorillonite. So the strength change originates from the release of alkali metal ions on molecular scale that leads to the concentration and transition of clay minerals on meso-scale. The evolution of slip surface and soil strength is a typical process involving multi-scale processes of structure changes and chemo-mechanical coupling.
Starting Page	1757
Ending Page	1765
Page Count	9
File Format	PDF
ISSN	16747321
Journal	Science in China Series E: Technological Sciences
Volume Number	54
Issue Number	7
e-ISSN	1862281X
Language	English
Publisher	SP Science China Press
Publisher Date	2011-04-12
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	slip surface multi-scale chemo-mechanical evolution of mineral The Three Gorges China Engineering
Content Type	Text
Resource Type	Article
Subject	Engineering Materials Science

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