潭山硫铁矿在复杂地质条件下开采竖井保安矿柱时为了确保竖井的稳定安全,在离井筒中心6米处的F_1断层露头用等边三点观测断层上下盘岩体三向位移,简捷方便地解决了生产实际问题。 一、观测与计算 在F_1断层露头两侧埋设三个测点A、B、C,其中A、B在断层上盘,C在下盘、与竖井同侧,三点间距大致相等(图1)。开采 In order to ensure the safety and stability of the shaft when mining the shaft security pillar in the complex geological conditions, the F_1 fault outcrop at 6m from the center of the wellbore is observed with three-point isochronous displacement of the upper and lower plate rock mass in the outcrop of the fault. Easily solve the practical problems of production. I. Observation and Calculation Three measuring points A, B and C are buried on both sides of the outcrop of F_1 fault, in which A and B are on the fault plate, C is on the lower plate and is on the same side with the shaft, and the distances between the three points are approximately the same (Figure 1). Mining