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在多个操作条件下,在尾矿池中进行三维透场的数值模拟
Botao Fu1,2, JingJing Pei3, Huaijun Ji1
1School of Engineering and Technology, China University of Geosciences (Beijing), Beijing, 100083, China.
Scientific reports
|November 14, 2024
概括
这项研究使用了3D数值模型来评估各种条件下的尾矿水泄漏稳定性. 结果显示,大的设计确保了安全的透性,并防止了透损伤,即使是小的地质膜问题.
科学领域:
- 地质技术工程 地质技术工程
- 环境工程 环境工程
- 计算力学 计算力学 计算力学
背景情况:
- 尾水的安全性对于防止环境危害至关重要.
- 漏稳定性是大完整性的关键因素.
- 数字建模为分析复杂的漏现象提供了强大的方法.
研究的目的:
- 开发和应用一个3D数值模型来评估尾矿水的透稳定性.
- 评估不同高度和运行条件对漏的影响.
- 提供关于三维透稳定性和液压性能的见解.
主要方法:
- 对于3D漏模型的有限元数值计算.
- 分析了四个不同的高度条件 (5070m, 5081m, 5159m, 5213m).
- 在正常和洪水场景下进行漏计算,包括各种堆叠和地质膜完整性场景.
主要成果:
- 在不同的积累条件下,观察到透表面和液压比率下降的明显空间模式.
- 在5070米的最大透度斜率在0.66到0.75.5之间.
- 液压比下降值在各个高度保持在安全范围内,在更高的高度 (5159米,5213米) 值更大.
- 灵敏度分析证实,透系数的范围符合漏控制要求.
- 当地地质膜破裂对漏场和水稳定性的影响最小.
结论:
- 拟议的尾矿水设计具有漏控制和排水设施,确保安全的透性,并防止预期的透损坏.
- 这项研究为分析尾矿池的地震静态动态稳定性提供了科学基础.
- 三维数值模型有效地评估了在各种操作和环境条件下的漏稳定性.
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