摘要
尾矿库作为一个重大危险源,其溃坝后的危险性分析是复杂的。为了给尾矿库防灾减灾和保护下游居民生命财产等方面提供较准确的理论依据,采用泥石流危险范围预测模型,以武宣县三里振祈锰矿尾矿库为例,通过泥石流危险度判定、滑坡工程量估算和溃坝影响范围计算,对尾矿库溃坝引发的泥石流问题进行危险性评价和危险范围预测。结果表明,该尾矿库溃坝引发泥石流的危险性为轻度危险,一次泥石流危险范围预测结果为安全,泥石流最大危险范围情况下尾矿库溃坝对下游居民房屋及道路等均会造成威胁,预测结果应用效果良好。
As a major source of hazard,the risk analysis after dam collapse of lagoon is complicated.In order to provide a theoretical basis for the disaster prevention and reduction and protect the lives and properties of residents at downstream water,a forecast model of hazard range of debris flow was employed to make a risk evaluation and hazard range prediction of debris flow caused by dam collapse of lagoon taking the lagoon of Sanlizhenqi Mn Mine in Wuxuan County as an example with the study of debris flow risk determination,landslide volume estimation and the calculation of extent affected by dam collapse.The results showed that the hazard scale for the debris flow caused by the dam collapse of lagoon was mild and the range predicted for a debris flow hazardous zone was safe.The dam collapse of lagoon under the greatest hazardous range of debris flow will impose a threat to residents and road at downstream water.Hence,the application of prediction results is of good effect.
出处
《山东科技大学学报（自然科学版）》
CAS
2011年第2期25-29,共5页
Journal of Shandong University of Science and Technology(Natural Science)
基金
广西自然科学基金重点项目(2010GXNSFD013002)
工程防灾与结构安全教育部重点实验室基金项目(2009TMZR005)
广西省自然科学基金项目(桂科自0991056)
关键词
尾矿库
溃坝
防灾减灾
危险性评价
危险范围
lagoon
dam collapse
disaster prevention and reduction
risk evaluation
range of hazard
