地震声波法监控。该方法是根据声波吸收和消散定律推测地震波在岩石体内所有方向上的传播以确定岩体内出现脆性断裂区。在俄斯特拉发—卡尔维纳煤田用安装在地面的一种电子系统和井下工作面主巷或回风道中钻孔内的 SA-5型地音探测器搜集、处理地声波的数据。根据测得的动频(表示超出预调对比水平的地震信号振动次数),记录地震波活动脉冲参数 SA。并将其与有关矿井区域的采矿作业和地质条件相 Seismic sound wave monitoring. The method estimates the propagation of seismic waves in all directions in the rock body according to the law of sound wave absorption and dissipation to determine the occurrence of brittle fracture zone in the rock mass. At Ostrava-Calvinner Coalfield, ground-based electronic systems and SA-5 geophones within the bore holes in the main tunnel or return duct of the downhole face are used to collect and process the ground acoustic data. According to the measured dynamic frequency (indicating the number of seismic signals that exceed the preset contrast level), the seismic activity pulse parameter SA is recorded. And relate it to the mining operations and geological conditions in the area of ​​the mine concerned