论文部分内容阅读
引言在1987年,仅知道安西尔(Ansil)矿体品位高,埋藏深,体积较小。由于在竖井开凿过程中发生过岩爆并且必须进行解除应力爆破(图1),所以也预料到存在高应力。从设计到基建乃至在目前的开采中,一直都应用岩石力学和微震监测以提高矿石回收率和安全程度,降低矿石贫化率。文中列举了开采初期应用微震监测系统的实例,也评述了矿山的原岩应力测量工作、锚索支护及充填
INTRODUCTION In 1987, only the Ansil ore body was known to be of high grade, buried deep and of smaller volume. High stress is also expected due to the occurrence of rock burst during shaft drilling and the need to stress relieve the blast (Figure 1). Rock rock mechanics and microseismic monitoring have been applied from design to infrastructure and even to current mining efforts to increase recovery and safety of ores and reduce ore dilution rates. The article lists examples of the application of microseismic monitoring system in the early stage of mining, and also reviews the measurement of the original rock stress of the mine, the support and filling of the anchor cable