CAJ | 학술논문

尾矿库溃坝影响范围预测是金属矿山环境影响评价的重点，但目前尚没有系统、统一的评价方法，一般采用经验类比和经验公式推理分析估算确定。针对包气带渗透性强的开阔地区采用单沟泥石流经验预测公式和地下水对流扩散模式对尾矿库溃坝后泥石流覆盖范围和地下水影响范围及程度进行定量分析评价，得出了某尾矿库一旦溃坝后泥石流覆盖范围为坝下游58．15 hm2，事故发生4年后地下水最大超标范围2．4 km。该尾矿库溃坝影响范围预测评价，为同地区、同类型项目环境评价和环境管理者决策提供依据和参考。
미광고궤패영향범위예측시금속광산배경영향평개적중점，단목전상몰유계통、통일적평개방법，일반채용경험류비화경험공식추리분석고산학정。침대포기대삼투성강적개활지구채용단구니석류경험예측공식화지하수대류확산모식대미광고궤패후니석류복개범위화지하수영향범위급정도진행정량분석평개，득출료모미광고일단궤패후니석류복개범위위패하유58．15 hm2，사고발생4년후지하수최대초표범위2．4 km。해미광고궤패영향범위예측평개，위동지구、동류형항목배경평개화배경관리자결책제공의거화삼고。
Evaluation for the impact range of dam failure is highlighted in the process of environmental impact as-sessment of metal mines .However,till now,there is no systematic and universal evaluation measure for it .What is com-monly used are the analogy and the inference through empirical formula methods .This paper adopted the empirical for-mula of single debris flow for the highly permeable open area in aeration zones and quantitative analysis evaluation for the impact degree and range of groundwater advection diffusion pattern after dam failure on debris flow and groundwa -ter.The results showed that the impact range of dam failure is 58.15 hm2 downstream,and for years after the dam fail-ure the maximum range of over-standard groundwater is 2.4 km.This provides basis and reference for environmental impact assessment and environmental management decision in similar areas .