Research on the Overtopping-Induced Breaching Mechanism of Tailings Dam and Its Numerical Simulation
The centrifugal model test system is utilized to reappear the breaching process of a tailings dam. The results show that there are significant differences in breaching processes between tailings dams and earth-rockfill dams. Influenced by the special physical and mechanical properties of tailings, t...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/3264342 |
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| author | Zhao Deng Shiqiang Wu Ziwu Fan Zhikun Yan Jingxiu Wu |
| author_facet | Zhao Deng Shiqiang Wu Ziwu Fan Zhikun Yan Jingxiu Wu |
| author_sort | Zhao Deng |
| collection | DOAJ |
| description | The centrifugal model test system is utilized to reappear the breaching process of a tailings dam. The results show that there are significant differences in breaching processes between tailings dams and earth-rockfill dams. Influenced by the special physical and mechanical properties of tailings, the breaching processes of tailings dams are of short duration, and the flood flow through the breach increase rapidly. Based on the centrifugal test results, considering the special physical and mechanical properties of tailings, a mathematical model for tailings dam breaching is established. In the model, the vertical undercutting and horizontal expansion are simulated utilizing the erosion rate formula which is derived from shear stress principle of water flow; limit equilibrium method is used to analyze the breach slope stability. In addition, the model adopts iterative calculation method to simulate the whole breaching process. The analysis results show that, the proposed model is applicable in modeling the dam breaching process for tailings dam due to overtopping. |
| format | Article |
| id | doaj-art-280dc70d3f7a4e26b8abdccb12bf863b |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-280dc70d3f7a4e26b8abdccb12bf863b2025-02-03T01:26:04ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/32643423264342Research on the Overtopping-Induced Breaching Mechanism of Tailings Dam and Its Numerical SimulationZhao Deng0Shiqiang Wu1Ziwu Fan2Zhikun Yan3Jingxiu Wu4Nanjing Hydraulic Research Institute, Nanjing 210024, ChinaNanjing Hydraulic Research Institute, Nanjing 210024, ChinaNanjing Hydraulic Research Institute, Nanjing 210024, ChinaNanjing Hydraulic Research Institute, Nanjing 210024, ChinaNanjing Hydraulic Research Institute, Nanjing 210024, ChinaThe centrifugal model test system is utilized to reappear the breaching process of a tailings dam. The results show that there are significant differences in breaching processes between tailings dams and earth-rockfill dams. Influenced by the special physical and mechanical properties of tailings, the breaching processes of tailings dams are of short duration, and the flood flow through the breach increase rapidly. Based on the centrifugal test results, considering the special physical and mechanical properties of tailings, a mathematical model for tailings dam breaching is established. In the model, the vertical undercutting and horizontal expansion are simulated utilizing the erosion rate formula which is derived from shear stress principle of water flow; limit equilibrium method is used to analyze the breach slope stability. In addition, the model adopts iterative calculation method to simulate the whole breaching process. The analysis results show that, the proposed model is applicable in modeling the dam breaching process for tailings dam due to overtopping.http://dx.doi.org/10.1155/2019/3264342 |
| spellingShingle | Zhao Deng Shiqiang Wu Ziwu Fan Zhikun Yan Jingxiu Wu Research on the Overtopping-Induced Breaching Mechanism of Tailings Dam and Its Numerical Simulation Advances in Civil Engineering |
| title | Research on the Overtopping-Induced Breaching Mechanism of Tailings Dam and Its Numerical Simulation |
| title_full | Research on the Overtopping-Induced Breaching Mechanism of Tailings Dam and Its Numerical Simulation |
| title_fullStr | Research on the Overtopping-Induced Breaching Mechanism of Tailings Dam and Its Numerical Simulation |
| title_full_unstemmed | Research on the Overtopping-Induced Breaching Mechanism of Tailings Dam and Its Numerical Simulation |
| title_short | Research on the Overtopping-Induced Breaching Mechanism of Tailings Dam and Its Numerical Simulation |
| title_sort | research on the overtopping induced breaching mechanism of tailings dam and its numerical simulation |
| url | http://dx.doi.org/10.1155/2019/3264342 |
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