杜达铅锌矿矿岩质量分析与采场失稳形式研究

Research of Classification of Rock Quality and Forms of Stope Instability in Duddar Lead-Zinc Mine

杜达铅锌矿属于高温高压高硫矿山,地质条件差,地下水较大。回采时因采场失稳,导致安全风险加大、损失贫化率升高。通过对杜达矿区岩石进行矿岩质量分级,找出稳定性差的岩体位置。对典型采场的失稳特点进行归纳,总结出采场失稳的主要形式。从而提前制定合理的预防措施,达到安全生产、降低损失贫化的目的。

Duddar Lead-Zinc Mine is a mine with high temperature,high pressure,high sulfur,poor geological conditions and abundant groundwater.Due to the instability of the stope during extraction,the safety risk increases and the loss and dilution rate goes up.Through the classification of rock quality in Duda Lead-Zinc Mine,the instable rock mass was located.The typical instability characteristics of the stope were summarized,and the main forms of stope instability were summed up,so as to realize safe production and reduce loss and dilution by formulating reasonable preventive measures in advance.