MacroMicrotesting and Damage and Degradation of Sandstones under Dry-Wet Cycles

Joint Authors

Liu, Xinrong
Wang, Zijuan
Fu, Yan
Yuan, Wen
Miao, Luli

Source

Advances in Materials Science and Engineering

Issue

Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-16, 16 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2016-04-05

Country of Publication

Egypt

No. of Pages

16

Abstract EN

In terms of the degradation of mechanical parameters of rock mass in the hydrofluctuation belt of a reservoir bank slope arising from rainfall and the reservoir level fluctuation, the moderately weathered sandstone in a side slope of the Three Gorges Reservoir Region is selected as a research object to carry out “drying-saturation-drying” tests for disks with two thicknesses ( h = 25 mm, h = 50 mm) in different cycles; a spiral CT machine, an ultrasonic velocity meter, and a light Schmidt hammer are utilzed to conduct nondestructive testing on dry-wet cycles; through the Brazilian splitting test, the uniaxial tensile strength of “dry” and “saturated” sandstones under different dry-wet cycles is obtained.

The research shows that, with the increase of the dry-wet circles ( n ), the longitudinal wave velocity and the rebound strength of sandstones are linearly decreased with n ; the uniaxial tensile strength of sandstones and the mean CT number of cross sections are logarithmically decreased with n ; the fitting equation of macro/micromechanical parameters and dry-wet cycles ( n ) of sandstones is raised, which is provided as a reference basis for the weathering process of sandstones under dry-wet cycles.

American Psychological Association (APA)

Liu, Xinrong& Wang, Zijuan& Fu, Yan& Yuan, Wen& Miao, Luli. 2016. MacroMicrotesting and Damage and Degradation of Sandstones under Dry-Wet Cycles. Advances in Materials Science and Engineering،Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1096344

Modern Language Association (MLA)

Liu, Xinrong…[et al.]. MacroMicrotesting and Damage and Degradation of Sandstones under Dry-Wet Cycles. Advances in Materials Science and Engineering No. 2016 (2016), pp.1-16.
https://search.emarefa.net/detail/BIM-1096344

American Medical Association (AMA)

Liu, Xinrong& Wang, Zijuan& Fu, Yan& Yuan, Wen& Miao, Luli. MacroMicrotesting and Damage and Degradation of Sandstones under Dry-Wet Cycles. Advances in Materials Science and Engineering. 2016. Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1096344

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1096344