湖北大冶铜绿山铜铁矿尾矿库溃坝动力特性分析

发布时间：2018-04-19 19:52

本文选题：尾矿库 + 溃坝　；参考：《金属矿山》2017年12期

【摘要】：2017年3月12日凌晨2时20分,湖北大冶铜绿山铜铁矿尾矿库西北角发生了局部溃坝事故,下泄尾砂泥浆约50万m3。在大冶尾矿库溃坝现场考察和相关数据资料查阅的基础上,分析了该尾矿库的结构特征、地质环境特征与溃坝尾砂运动特征。利用无人机航拍技术获取了大冶尾矿库溃坝后的地貌高程数据并建立尾矿库溃坝后的DSM模型,运用DAN3D软件建立了尾矿库溃坝的动力计算模型。通过对比Frictional模型、Bingham模型及Voellmy模型的模拟结果,认为Voellmy模型可以较好地模拟溃坝全过程。模拟结果表明:大冶尾矿库溃坝过程中尾矿泥石流运动持续时间为130 s,最大堆积深度为5 m,最大运动速度为20 m/s。
[Abstract]:At 02:20 on March 12, 2017, a local dam break occurred in the northwest corner of Tonglushan Copper Mine tailings Reservoir in Daye, Hubei Province, with a mud discharge of about 500000 m3. On the basis of site investigation and related data reference of dam break in Daye tailings reservoir, the structural characteristics, geological environment characteristics and movement characteristics of tailings in dam break are analyzed. The geomorphologic elevation data after dam break of Daye tailings reservoir were obtained by aerial aerial photography technology of UAV, and the DSM model after dam break of tailings reservoir was established. The dynamic calculation model of dam break of tailings reservoir was established by using DAN3D software. By comparing the simulation results of Frictional model and Voellmy model, it is concluded that Voellmy model can simulate the whole process of dam break. The simulation results show that the movement duration of debris flow in Daye tailings reservoir is 130 s, the maximum accumulation depth is 5 m, and the maximum velocity is 20 m / s.
【作者单位】：海洋工程国家重点实验室(上海交通大学);上海胜义环境科技有限公司;
【基金】：国家自然科学基金重点项目(编号:41530639)
【分类号】：TD926.4

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