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Experimental Study on the Softening Characteristics of Sandstone and Mudstone in Relation to Moisture Content
Joint Authors
Ll, Guichen
Qi, Chongchong
Sun, Yuantian
Tang, Xiao-lin
Hou, Bao-quan
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-22
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
The kinetics of fluid-solid coupling during immersion is an important topic of investigation in rock engineering.
Two rock types, sandstone and mudstone, are selected in this work to study the correlation between the softening characteristics of the rocks and moisture content.
This is achieved through detailed studies using scanning electron microscopy, shear tests, and evaluation of rock index properties during exposure to different moisture contents.
An underground roadway excavation is simulated by dynamic finite element modeling to analyze the effect of moisture content on the stability of the roadway.
The results show that moisture content has a significant effect on shear properties reduction of both sandstone and mudstone, which must thus be considered in mining or excavation processes.
Specifically, it is found that the number, area, and diameter of micropores, as well as surface porosity, increase with increasing moisture content.
Additionally, stress concentration is negatively correlated with moisture content, while the influenced area and vertical displacement are positively correlated with moisture content.
These findings may provide useful input for the design of underground roadways.
American Psychological Association (APA)
Ll, Guichen& Qi, Chongchong& Sun, Yuantian& Tang, Xiao-lin& Hou, Bao-quan. 2017. Experimental Study on the Softening Characteristics of Sandstone and Mudstone in Relation to Moisture Content. Shock and Vibration،Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1204390
Modern Language Association (MLA)
Ll, Guichen…[et al.]. Experimental Study on the Softening Characteristics of Sandstone and Mudstone in Relation to Moisture Content. Shock and Vibration No. 2017 (2017), pp.1-14.
https://search.emarefa.net/detail/BIM-1204390
American Medical Association (AMA)
Ll, Guichen& Qi, Chongchong& Sun, Yuantian& Tang, Xiao-lin& Hou, Bao-quan. Experimental Study on the Softening Characteristics of Sandstone and Mudstone in Relation to Moisture Content. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1204390
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1204390