NDLI: Study of physico-mechanical properties of Emeishan basalt saprolites in Yunnan, China

Content Provider	Springer Nature Link
Author	Ren, Zhe Zhang, Luyue Xu, Zemin Zhang, Jiaming Chen, Jipu
Copyright Year	2016
Abstract	Saprolites are the weathered products that differ greatly from their parent rock in terms of the physico-mechanical properties because their chemical components are leached, yet differ from a typical soil because they still maintain their inherited structure. Here, typical Emeishan basalt saprolites that are widely distributed in the Guizhou and Yunnan Provinces were examined in terms of their basic physical indexes, compression properties, shear properties and microstructure to identify the differences between the parent rock and weathered product. The Emeishan basalt saprolites are characterized by a low density, high void ratio and medium–low compressibility. Also, these saprolites exhibit inelastic nonlinear response and relatively high cohesion during pressure tests. There is a brittle failure in low confining stresses and plastic deformation in high values, indicating the preservation of structural and textural characteristics from the parent rock; however, with highly developed secondary porosity, its strength is much lower than the parent rock. All the results indicate that Emeishan basalt saprolites are a kind of unique geological material, requiring consideration during construction and engineering within the region.
Starting Page	617
Ending Page	628
Page Count	12
File Format	PDF
ISSN	14359529
Journal	Bulletin of the International Association of Engineering Geology - Bulletin de l'Association Internationale de Géologie de l'Ingénieur
Volume Number	76
Issue Number	2
e-ISSN	14359537
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-10-25
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Saprolite Basalt Physical property Mechanical behavior Shear strength Geotechnical Engineering & Applied Earth Sciences Geoengineering, Foundations, Hydraulics Geoecology/Natural Processes Nature Conservation
Content Type	Text
Resource Type	Article
Subject	Geology Geotechnical Engineering and Engineering Geology

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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