论文部分内容阅读
以白皎矿１９９７年４次掘进工作面突出前环境监测系统所反映的炮后Ｖ３０数据为依据，分析得出了白皎矿掘进工作面突出前炮后Ｖ３０的动态变化规律，并提出了用炮后Ｖ３０指标预测突出的临界值。
Based on the V30 data of gunfire, which was reflected by the former environmental monitoring system of the 4 surface excavation work face of Baijiao Mine in 1997, the dynamic change rule of V30 after the former gun was forecasted in Baijiao mine heading face was analyzed. After the gun V30 index projections highlight the critical value.