摘要
〕为探究尾矿库溃坝灾害作用下下游城区的灾害风险特点,借助Flow-3D分析软件对某尾矿库的溃坝过程进行数值仿真模拟,分析尾矿库下游不同断面的流量时程变化及流体波及范围,探究关键监测点的水位变化及致灾规律。结果表明,溃坝洪峰流量发展迅速,水位回落持续时间较短;坝体近场区域的洪水灾害严重,建构筑物对洪水能量有一定消减作用;城区道路是主要的泄洪通道,低洼地势易导致发生较深积水的现象。
In order to explore the disaster risk characteristics of the downstream urban area under the dam-break disaster of the tailings reservoir,the dam-break process of a tailings reservoir was numerically simulated with the help of Flow-3D analysis software,the flow time history change and fluid sweep range of different sections downstream of the tailings reservoir were analyzed,and the water level change and disaster-causing law of the key monitoring points were explored.The results show that the peak discharge of dam-break flood develops rapidly,the falling time of water level is short,the flood disaster in the area near the dam body is serious,and the buildings and structures can reduce the flood energy to a certain extent,and the urban road is the main flood discharge passageway.low-lying terrain is easy to lead to deep stagnant water.The research results can provide a basis for the disaster prevention design of tailings reservoir.
作者
余国平
唐笑
肖利兴
YU Guoping;TANG Xiao;XIAO Lixing(China Nerin Engineering Co.,Ltd.,Nanchang,Jiangxi 330038,China)
出处
《有色冶金设计与研究》
2021年第3期45-49,共5页
Nonferrous Metals Engineering & Research
关键词
〕尾矿库
洪水
溃坝
仿真模拟
流量分析
tailing reservoir
flood
dam break
simulation
flow analysis
