Analysis of the Variation of Friction Coefficient of Sandstone Joint in Sliding
The friction coefficient of rock joints is closely related to the stability of the slope. However, it is difficult to predict the friction coefficient due to the influence of surface roughness and mechanical properties of rocks. In this study, we use a method that combines theoretical analysis with...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8863960 |
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| _version_ | 1850230307974807552 |
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| author | Guochao Zhao Laigui Wang Na Zhao Jianlin Yang Xilin Li |
| author_facet | Guochao Zhao Laigui Wang Na Zhao Jianlin Yang Xilin Li |
| author_sort | Guochao Zhao |
| collection | DOAJ |
| description | The friction coefficient of rock joints is closely related to the stability of the slope. However, it is difficult to predict the friction coefficient due to the influence of surface roughness and mechanical properties of rocks. In this study, we use a method that combines theoretical analysis with a sandstone sliding friction test and propose a model to predict the friction coefficient of Sandstone Joint. A sandstone sliding friction test was performed on a self-made reciprocating sliding friction test device. Good agreement between the estimated values and test values verified the validity of the friction coefficient prediction model. Through an analysis of the friction coefficient in sandstone sliding, it was established that the larger the wear mass, the larger the friction coefficient in sliding, and the larger the wear area, the smaller the friction coefficient. With the cycles increasing of sandstone, the friction coefficient gradually decreased before finally reaching a stable value. Comparisons between the estimated value and test results showed that when the wear difference coefficient c = 2.0 and the meshing friction amplification coefficient K = 1.4, the minimum error was 2.89%. The results obtained are significant in the control of slope sliding. |
| format | Article |
| id | doaj-art-214fa58290b24fcc97eea4ac22f01b03 |
| institution | OA Journals |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-214fa58290b24fcc97eea4ac22f01b032025-08-20T02:03:55ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/88639608863960Analysis of the Variation of Friction Coefficient of Sandstone Joint in SlidingGuochao Zhao0Laigui Wang1Na Zhao2Jianlin Yang3Xilin Li4College of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, ChinaCollege of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, ChinaCollege of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, ChinaCollege of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, ChinaCollege of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, ChinaThe friction coefficient of rock joints is closely related to the stability of the slope. However, it is difficult to predict the friction coefficient due to the influence of surface roughness and mechanical properties of rocks. In this study, we use a method that combines theoretical analysis with a sandstone sliding friction test and propose a model to predict the friction coefficient of Sandstone Joint. A sandstone sliding friction test was performed on a self-made reciprocating sliding friction test device. Good agreement between the estimated values and test values verified the validity of the friction coefficient prediction model. Through an analysis of the friction coefficient in sandstone sliding, it was established that the larger the wear mass, the larger the friction coefficient in sliding, and the larger the wear area, the smaller the friction coefficient. With the cycles increasing of sandstone, the friction coefficient gradually decreased before finally reaching a stable value. Comparisons between the estimated value and test results showed that when the wear difference coefficient c = 2.0 and the meshing friction amplification coefficient K = 1.4, the minimum error was 2.89%. The results obtained are significant in the control of slope sliding.http://dx.doi.org/10.1155/2020/8863960 |
| spellingShingle | Guochao Zhao Laigui Wang Na Zhao Jianlin Yang Xilin Li Analysis of the Variation of Friction Coefficient of Sandstone Joint in Sliding Advances in Civil Engineering |
| title | Analysis of the Variation of Friction Coefficient of Sandstone Joint in Sliding |
| title_full | Analysis of the Variation of Friction Coefficient of Sandstone Joint in Sliding |
| title_fullStr | Analysis of the Variation of Friction Coefficient of Sandstone Joint in Sliding |
| title_full_unstemmed | Analysis of the Variation of Friction Coefficient of Sandstone Joint in Sliding |
| title_short | Analysis of the Variation of Friction Coefficient of Sandstone Joint in Sliding |
| title_sort | analysis of the variation of friction coefficient of sandstone joint in sliding |
| url | http://dx.doi.org/10.1155/2020/8863960 |
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