西岭矿区地应力测量及分布规律研究

西岭金矿已成为我国最大单体金矿床,收集地应力基础技术数据对合理开采西岭金矿具有重要意义。该文利用勘探期钻孔岩心,通过声发射试验确定岩心声发射Kaiser效应点,从而进一步计算获得地应力大小及方向。最终,通过选定的5个钻孔的地应力测量结果获得整个西岭矿区的地下地应力分布规律,为矿区的采矿设计提供重要的数据支撑。

Xiling gold deposit has become the largest single gold deposit in China.The collection of basic technical data of geostress is of great significance for the rational mining of Xiling gold deposit.In this paper,by using the borehole core during the exploration period,the acoustic emission Kaiser effect point of the core is determined by acoustic emission test,and the magnitude and direction of geostress are further calculated.Finally,the underground geostress distribution law of the whole Xiling mining area is obtained through the geostress measurement results of the selected five boreholes,which provides important data support for the mining design of the mining area.