 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 13653 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8223
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| In English (Mech. Solids): | | 5430 |
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| Xingyue Shen, Huiming Tang, and Peiwu Shen, "Interfacial Strength Degradation of Rock Joint Subjected to Cyclic Wetting-Drying and Cyclic Shear: A Case Study," Mech. Solids. 60 (8), 7268-7281 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
8 |
Pages |
7268-7281 |
| DOI |
10.1134/S0025654425606007 |
| Title |
Interfacial Strength Degradation of Rock Joint Subjected to Cyclic Wetting-Drying and Cyclic Shear: A Case Study |
| Author(s) |
Xingyue Shen (Wuhan Construction Engineering (Group) Co., Ltd., Wuhan, Hubei, 430058 China)
Huiming Tang (Faculty of Engineering, China University of Geosciences, Wuhan, Hubei, 430074 China; Badong National Observation and Research Station of Geohazards, China University of Geosciences, Wuhan, Hubei, 430074 China)
Peiwu Shen (Wuhan Metro Group Co., Ltd., Wuhan, Hubei, 430070 China, pwshen@cug.edu.cn) |
| Abstract |
The shear property of rock joint surface considering physical weathering and long-term shear is rarely concerned. Based on the widely developed slate rock mass in the Miaowei Reservoir area of Yunnan Province, China, six groups of slate rock joint surfaces are prepared to suffer cyclic wetting-drying test first and then cyclic shear test, so that these slate rock joint surfaces can experience different degrees of weathering and long-term shear; based on the tests, the relations among peak shear strength (τ), cohesion (C), friction angle (ϕ), wetting-drying cycle (CW−D), shear cycle (CS) and usual normal stress (σn) are studied. Besides, an estimation model of τ of rock joint surface is proposed by quantifying the effects of physical weathering and long-term shear with damage variable (D) and joint roughness coefficient (JRC), respectively, and the proposed estimation model is finally applied to the stability evaluation of a bedding slate rock slope. The analytical result mainly indicates that the long-term shear weakens the slate rock joint surface to a residual state instead of infinite weakening, and the physical weathering tends to shorten the weakening process; the proposed estimation model shows a better estimation effect compared with the typical estimation model, and for practical application, the theoretical calculation method and estimation method of parameters in the proposed model are also given; the engineering application result based on the proposed estimation model reveals the stability evolution process of one bedding slate rock slope under continuous degradation, and as a reference for the bedding slate rock slopes with similar engineering geological conditions in the Miaowei Reservoir area, the related stability evaluation result may be obtained quickly through a set of on-site Schmidt hammer tests. |
| Keywords |
physical weathering, long-term shear, rock joint surface, strength degradation, slope stability evaluation |
| Received |
16 October 2025 | Revised |
01 December 2025 | Accepted |
26 December 2025 |
| Link to Fulltext |
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