Stability Evaluation of Sliding-Type Perilous Rock in Huangzangsi Hydrojunction Project Based on Natural Vibration Frequency
The instability of perilous rock is mostly manifested as sudden collapse and failure without obvious displacement characteristics. Therefore, it is difficult to achieve the purpose of monitoring and early warning by conventional displacement monitoring. But the existing stability monitoring indicato...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi-Wiley
2023-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2023/6917910 |
| _version_ | 1811157943669751808 |
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| author | Yanchang Jia Luqi Wang Tong Jiang Yanli Yin Weinan Liu Hongke Song Xiaogen Li Sujiao Shi |
| author_facet | Yanchang Jia Luqi Wang Tong Jiang Yanli Yin Weinan Liu Hongke Song Xiaogen Li Sujiao Shi |
| author_sort | Yanchang Jia |
| collection | DOAJ |
| description | The instability of perilous rock is mostly manifested as sudden collapse and failure without obvious displacement characteristics. Therefore, it is difficult to achieve the purpose of monitoring and early warning by conventional displacement monitoring. But the existing stability monitoring indicators are mostly deformation, stress, and strain. There is a problem that the stability evaluation parameters are inconsistent with the monitoring parameters. Taking sliding-type perilous rock as the research object, the structural plane is assumed to be homogeneous and isotropic, and linear elastic deformation in the amplitude range. Based on the dynamic theory and limit equilibrium model, the quantitative relationship model can be established involving safety factors, natural vibration frequency, structural surface bonding area, elastic modulus, and mass. The remote laser vibrometer is used to monitor the natural vibration frequency of the sliding-type perilous rock on the slope of the Huangzangsi Hydrojunction, and the stability evaluation of the perilous rock is achieved based on the quantitative relationship model between the safety factor and the natural vibration frequency. In this way, the frequency of slipping perilous rock stability evaluation and safety factor can be monitored. The results are basically the same with the safety factor calculated by the limit equilibrium method, indicating that the method is correct and feasible. The research has high theoretical significance and practical value for the safety monitoring and advanced warning of sliding perilous rock. |
| first_indexed | 2024-04-10T05:16:02Z |
| format | Article |
| id | doaj.art-844bdad1a75c4d828f1759a716b22ace |
| institution | Directory Open Access Journal |
| issn | 1468-8123 |
| language | English |
| last_indexed | 2024-04-10T05:16:02Z |
| publishDate | 2023-01-01 |
| publisher | Hindawi-Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj.art-844bdad1a75c4d828f1759a716b22ace2023-03-09T00:00:17ZengHindawi-WileyGeofluids1468-81232023-01-01202310.1155/2023/6917910Stability Evaluation of Sliding-Type Perilous Rock in Huangzangsi Hydrojunction Project Based on Natural Vibration FrequencyYanchang Jia0Luqi Wang1Tong Jiang2Yanli Yin3Weinan Liu4Hongke Song5Xiaogen Li6Sujiao Shi7North China University of Water Resources and Electric PowerSchool of Civil EngineeringNorth China University of Water Resources and Electric PowerNorth China University of Water Resources and Electric PowerYellow River Engineering Consulting Co. Ltd.Yellow River Engineering Consulting Co. Ltd.North China University of Water Resources and Electric PowerHenan Province Map AcademyThe instability of perilous rock is mostly manifested as sudden collapse and failure without obvious displacement characteristics. Therefore, it is difficult to achieve the purpose of monitoring and early warning by conventional displacement monitoring. But the existing stability monitoring indicators are mostly deformation, stress, and strain. There is a problem that the stability evaluation parameters are inconsistent with the monitoring parameters. Taking sliding-type perilous rock as the research object, the structural plane is assumed to be homogeneous and isotropic, and linear elastic deformation in the amplitude range. Based on the dynamic theory and limit equilibrium model, the quantitative relationship model can be established involving safety factors, natural vibration frequency, structural surface bonding area, elastic modulus, and mass. The remote laser vibrometer is used to monitor the natural vibration frequency of the sliding-type perilous rock on the slope of the Huangzangsi Hydrojunction, and the stability evaluation of the perilous rock is achieved based on the quantitative relationship model between the safety factor and the natural vibration frequency. In this way, the frequency of slipping perilous rock stability evaluation and safety factor can be monitored. The results are basically the same with the safety factor calculated by the limit equilibrium method, indicating that the method is correct and feasible. The research has high theoretical significance and practical value for the safety monitoring and advanced warning of sliding perilous rock.http://dx.doi.org/10.1155/2023/6917910 |
| spellingShingle | Yanchang Jia Luqi Wang Tong Jiang Yanli Yin Weinan Liu Hongke Song Xiaogen Li Sujiao Shi Stability Evaluation of Sliding-Type Perilous Rock in Huangzangsi Hydrojunction Project Based on Natural Vibration Frequency Geofluids |
| title | Stability Evaluation of Sliding-Type Perilous Rock in Huangzangsi Hydrojunction Project Based on Natural Vibration Frequency |
| title_full | Stability Evaluation of Sliding-Type Perilous Rock in Huangzangsi Hydrojunction Project Based on Natural Vibration Frequency |
| title_fullStr | Stability Evaluation of Sliding-Type Perilous Rock in Huangzangsi Hydrojunction Project Based on Natural Vibration Frequency |
| title_full_unstemmed | Stability Evaluation of Sliding-Type Perilous Rock in Huangzangsi Hydrojunction Project Based on Natural Vibration Frequency |
| title_short | Stability Evaluation of Sliding-Type Perilous Rock in Huangzangsi Hydrojunction Project Based on Natural Vibration Frequency |
| title_sort | stability evaluation of sliding type perilous rock in huangzangsi hydrojunction project based on natural vibration frequency |
| url | http://dx.doi.org/10.1155/2023/6917910 |
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