尾砂库地震砂土液化判别与分析——以铜陵市水木冲尾砂库为例  

Discrimination and analysis of seismic sand liquefaction of tailings reservoir:A case study of Shuimuchong tailings reservoir in Tongling city

作　　者：谢瑞杰 管斌 丁丹 汪丹丹[3] 洪阳 XIE Ruijie;GUAN Bin;DING Dan;WANG Dandan;HONG Yang(Earthquake Administration of Tongling City,Tongling Anhui 244000,China;321 Geological Team,Anhui Bureau of Geology and Mineral Resources,Tongling Anhui 244000,China;Seismological Bureau of Anhui Province,Hefei 230031,China)

机构地区：[1]铜陵市地震局,安徽铜陵244000 [2]安徽省地矿局321地质队,安徽铜陵244000 [3]安徽省地震局,合肥230031

出　　处：《有色金属（矿山部分）》2022年第1期32-36,共5页NONFERROUS METALS(Mining Section）

摘　　要：尾砂是选矿分选作业的产物之一,通过堆积处理形成的尾砂库是重大危险源。尾砂库在地震作用下极易出现液化现象,导致库体失稳,出现溃库风险。以铜陵市水木冲尾砂库为例,采用标准贯入法、静力触探法和剪切波速判断法分析尾砂库地震砂土液化,结果表明饱和尾粉砂和尾细砂易在地震作用下产生液化。提出有关建议对策,对提高城市抗震设防工作有实际意义。Tailings are one of the products of ore dressing and sorting operations.The formation of tailings reservoirs through accumulation treatment is a major source of danger.The tailings reservoirs are prone to liquefaction under the action of earthquakes,leading to instability of the reservoir and the risk of reservoir collapse.Taking the Shuimuchong tailings reservoir in Tongling city as an example,the standard penetration method,static cone penetration method and shear wave velocity judgment method are used to analyze the seismic sand liquefaction of the tailings reservoir,and the data is analyzed,and relevant suggestions are put forward.It is of practical significance to improve the seismic fortification of cities.

关 键 词：尾砂库 砂土液化 标准贯入 静力触探 剪切波速 危险源 抗震 

分 类 号：TD926.4[矿业工程—选矿]