Study on Hydraulic Incipient Motion Model of Reinforced Tailings
Once the flood overtopping accident of a reinforced tailings dam occurs, it will cause great property losses and serious environmental pollution to the downstream residents. In order to further study the microscopic characteristics of the hydraulic erosion of reinforced tailings dams, considering th...
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MDPI AG
2021-07-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/13/15/2033 |
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| author | Kehui Liu Hai Cai Xiaofei Jing Yulong Chen Lu Li Shangwei Wu Wensong Wang |
| author_facet | Kehui Liu Hai Cai Xiaofei Jing Yulong Chen Lu Li Shangwei Wu Wensong Wang |
| author_sort | Kehui Liu |
| collection | DOAJ |
| description | Once the flood overtopping accident of a reinforced tailings dam occurs, it will cause great property losses and serious environmental pollution to the downstream residents. In order to further study the microscopic characteristics of the hydraulic erosion of reinforced tailings dams, considering that the beginning of reinforced tailings particles is the basis of flooding and erosion of reinforced tailings dams, in this paper, a reinforced tailings hydraulic erosion facility was used to carry out the tailings particle start-up test with reinforcement spacing of 5.0, 2.5, 1.7, 1.3, and 1.0 cm, and the influence the law of critical incipient velocity of tailings particles with different reinforcement spacing was revealed. The test results show that, the smaller the reinforcement spacing, the larger the incipient velocity of the reinforced tailings sample. Based on the sediment incipient motion theory, it is assumed that the resistance direction of particle incipient motion is opposite to the particle motion direction. A reinforcement coefficient is introduced to establish the incipient velocity formula of reinforced tailings particles. This model can provide theoretical support for the study of the hydraulic erosion rate of a reinforced tailings dam. |
| first_indexed | 2024-03-10T09:07:10Z |
| format | Article |
| id | doaj.art-54326b43de704ac280e709f1a9959183 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T09:07:10Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-54326b43de704ac280e709f1a99591832023-11-22T06:19:24ZengMDPI AGWater2073-44412021-07-011315203310.3390/w13152033Study on Hydraulic Incipient Motion Model of Reinforced TailingsKehui Liu0Hai Cai1Xiaofei Jing2Yulong Chen3Lu Li4Shangwei Wu5Wensong Wang6School of Safety Engineering, Chongqing University of Science and Technology, Chongqing 401331, ChinaSichuan Provincial Bureau of Geological and Mineral Exploration Geological Team 202, Chengdu 610000, ChinaSchool of Safety Engineering, Chongqing University of Science and Technology, Chongqing 401331, ChinaSchool of Energy and Mining Engineering, China University of Mining and Technology, Beijing 100083, ChinaSchool of Foreign Languages and Literature, Fudan University, Shanghai 200433, ChinaSchool of Safety Engineering, Chongqing University of Science and Technology, Chongqing 401331, ChinaState Key Laboratory of Coal Mine Disaster Dynamics and Control, School of Resources and Safety Engineering, Chongqing University, Chongqing 400044, ChinaOnce the flood overtopping accident of a reinforced tailings dam occurs, it will cause great property losses and serious environmental pollution to the downstream residents. In order to further study the microscopic characteristics of the hydraulic erosion of reinforced tailings dams, considering that the beginning of reinforced tailings particles is the basis of flooding and erosion of reinforced tailings dams, in this paper, a reinforced tailings hydraulic erosion facility was used to carry out the tailings particle start-up test with reinforcement spacing of 5.0, 2.5, 1.7, 1.3, and 1.0 cm, and the influence the law of critical incipient velocity of tailings particles with different reinforcement spacing was revealed. The test results show that, the smaller the reinforcement spacing, the larger the incipient velocity of the reinforced tailings sample. Based on the sediment incipient motion theory, it is assumed that the resistance direction of particle incipient motion is opposite to the particle motion direction. A reinforcement coefficient is introduced to establish the incipient velocity formula of reinforced tailings particles. This model can provide theoretical support for the study of the hydraulic erosion rate of a reinforced tailings dam.https://www.mdpi.com/2073-4441/13/15/2033reinforced tailingsreinforcement spacingincipient velocityreinforcement coefficient |
| spellingShingle | Kehui Liu Hai Cai Xiaofei Jing Yulong Chen Lu Li Shangwei Wu Wensong Wang Study on Hydraulic Incipient Motion Model of Reinforced Tailings Water reinforced tailings reinforcement spacing incipient velocity reinforcement coefficient |
| title | Study on Hydraulic Incipient Motion Model of Reinforced Tailings |
| title_full | Study on Hydraulic Incipient Motion Model of Reinforced Tailings |
| title_fullStr | Study on Hydraulic Incipient Motion Model of Reinforced Tailings |
| title_full_unstemmed | Study on Hydraulic Incipient Motion Model of Reinforced Tailings |
| title_short | Study on Hydraulic Incipient Motion Model of Reinforced Tailings |
| title_sort | study on hydraulic incipient motion model of reinforced tailings |
| topic | reinforced tailings reinforcement spacing incipient velocity reinforcement coefficient |
| url | https://www.mdpi.com/2073-4441/13/15/2033 |
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