尾矿库是矿山选厂的主要设施,也是事故易发部位.近年来病害事故频发,除了本身遭受地质灾害影响外,尾矿库工程更重要的是事故伴生、次生地质灾害.尾矿库事故可引发泥石流、滑坡、水土污染等次生灾害而进一步扩大事故的危害性.概括了尾矿库的工程特点,分析了尾矿库建设遭受、引发地质灾害的主要类型、致灾因素及其危害性,针对尾矿库地质灾害评估工作,指出评估要点和需注意的问题.
As the key installation of ore dressing plants, tailing reservoir is also accident-susceptible. A tailing reservoir can be destroyed by geohazards. Severe mudflow, landslide, karst collapse, soil and water pollution come after reservoir accident such as dam failure or serious leakage. The main engineering behaviors of tailing reservoir are introduced. Major geohazards of tailing reservoir construction and operation are comprehensively studied, including types, influential or inducing factors and hazards. Key points and main problems in geohazard risk assessment for tailing reservoir are pointed out.