拦挡引流措施对溃坝泥流演进过程影响研究  

Study on Impact of Barricading and Diversion Measures on Evolution Process of Dam-break Mud Flow

作　　者：王迪 张峥[3] 夏洪波 庞博 WANG Di;ZHANG Zheng;XIA Hongbo;PANG Bo(Information Institute of Ministry of Emergency Management;School of Civil and Resource Engineering,University of Science and Technology Beijing;College of Energy and Mining Engineering,Shandong University of Science and Technology)

机构地区：[1]应急管理部信息研究院 [2]北京科技大学土木与资源工程学院 [3]山东科技大学能源与矿业工程学院

出　　处：《现代矿业》2024年第9期107-111,116,共6页Modern Mining

基　　金：应急管理部信息研究院科技创新发展项目(编号:2024504)。

摘　　要：为探究拦挡引流措施对溃坝泥流演进影响,通过分析溃坝类型,结合数值模拟、经验公式确定溃口范围;采用光滑粒子流体动力学方法进行溃坝泥流的数值模拟,分析尾矿库溃坝泥流在下游无拦挡措施、有拦挡无引流措施、有拦挡引流措施下的泥流演进规律。结果表明:在无拦挡无引流措施下,溃坝泥流对居民组造成冲击,流速峰值达20 m/s,受冲击范围约为6.5×10^(4)m^(2);有拦挡无引流措施下,溃坝泥流对居民组的冲击得到缓解,流速峰值达18 m/s,冲击范围约为2.5×10^(4)m^(2);有拦挡引流措施下的溃坝对村居民组不产生影响。拦挡引流措施可有效降低溃坝泥流对周边重要构筑物的影响,为尾矿库下游防灾减灾工程布置、应急管理工作提供参考借鉴。In order to explore the influence of barricading and diversion measures on the evolution of dam break mud flow,the range of dam break is determined by analyzing the type of dam break,combining numerical simulation and empirical formula.The numerical simulation of dam-break mud flow is carried out by using smooth particle fluid dynamics method,and the evolution law of mud flow in the downstream with-out barricading measures,with barricading and no diversion measures,with barricading and diversion mea-sures is analyzed.The results show that under the condition of without barricading and diversion measures,the dam-break mud flow has an impact on the resident group,the peak velocity is 20 m/s,and the impact range is about 6.5×10^(4)m^(2).Under the measures of barricading and no diversion,the impact of dam-break mud flow on the resident group is alleviated,the peak velocity is 18 m/s,and the impact range is about 2.5×10^(4)m^(2).The dam-break under the barricading and diversion measures has no effect on the village residents.The research provides reference for the layout and emergency management of disaster prevention and mitiga-tion projects in the downstream of tailings reservoir.

关 键 词：尾矿库 SPH 尾矿库溃坝 拦挡措施 

分 类 号：TD926.4[矿业工程—选矿]