Floods from tailings dam failures
Floods from tailings dam failures
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DOI：
10.1016/j.jhazmat.2007.09.110
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发表时间：
2008-06-15
影响因子：
13.6
通讯作者：
Diez-Herrero, A.
中科院分区：
文献类型：
--
作者：
Rico, M.;Benito, G.;Diez-Herrero, A.
本文汇集了历史上尾矿坝溃坝的现有信息，目的是建立尾矿库几何参数（例如坝高、尾矿体积）与尾矿泄漏引起的洪水水力特征之间的简单相关性。矿山废坝倒塌后，仅部分尾矿和坝内储存的污水被释放，而事故发生前的流出量很难估计。本研究表明，失效时尾矿储存量与尾矿流出量具有良好的相关性（r（2）=0.86），尾矿泄漏量与其流出距离相关（r（2）=0.57）。绘制了包含大多数数据点的包络曲线，表明受尾矿泄漏影响的潜在最大下游距离。将所描述的回归方程用于预测目的需要谨慎对待，并需要现场测量和观察的支持。然而，它们可以提供尾矿流出特征的通用基线近似值（即使无法获得详细的大坝信息），这对于风险分析目的非常重要。 (c) 2007 Elsevier B.V. 保留所有权利。
This paper compiles the available information on historic tailings dam failures with the purpose to establish simple correlations between tailings ponds geometric parameters (e.g., dam height, tailings volume) and the hydraulic characteristics of floods resulting from released tailings. Following the collapse of a mining waste dam, only a part of tailings and polluted water stored at the dam is released, and this outflow volume is difficult to estimate prior the incident. In this study, tailings' volume stored at the time of failure was shown to have a good correlation (r(2) = 0.86) with the tailings outflow volume, and the volume of spilled tailings was correlated with its run-out distance (r(2) = 0.57). An envelope curve was drawn encompassing the majority of data points indicating the potential maximum downstream distance affected by a tailings' spill. The application of the described regression equations for prediction purposes needs to be treated with caution and with support of on-site measurement and observations. However, they may provide a universal baseline approximation on tailing outflow characteristics (even if detailed dam information is unavailable), which is of a great importance for risk analysis purposes. (c) 2007 Elsevier B.V. All rights reserved.