尾矿库防洪影响评价要点

尾矿库失事造成的后果往往比较严重,其安全性近年来倍受重视.尾矿库建库后,洪水对尾矿库安全将会产生很大威胁,尾矿库防洪安全是保证尾矿库安全的一个重要方面；其防洪评价要点主要包括:1)随着尾矿库运行,尾矿库滩顶、坝高、有效库容等在不断变化,其评价可主要针对尾矿库现状与终期两种状态；2)尾矿库设计等别及防洪标准由全库容和坝高两个因素决定；3)尾矿库设计洪水应根据尾矿库所在地水文手册或有关部门建议的适用于特小汇流面积的公式计算；4)洪水调节计算中起调水位、水位—泄量、水位—库容由尾矿库型式决定；5)水库防洪安全复核主要包括安全超高、坝顶高程、干滩长度、排水时间4个指标.

Points of Flood-Prevention Evaluation of Tailings Ponds

The consequences of tailings pond accidents are often very serious,so in recent years much attention has been paid to their security.Flood will bring threat to the safety of tailings ponds after they are constructed,so flood-prevention is an important factor.Points of flood-prevention evaluation of tailings ponds include: 1) because the beach crest,dam height,and effective storage capacity are changing as the tailing pond running,flood-prevention evaluation mainly includes current status and final status;2)...