埠村煤矿9-1煤的条带开采方法,其安全控制因素是如何确定工作面合理尺寸,虽然理论与统计方法可提供工作面的安全尺寸,但因工作面条件的复杂性,实际生产中仍需对工作面底板的突水隐患进行监控。为此本次实测工作中使用网络并行电法仪,沿巷道全岩段工作面一侧布置了48个电极,分别在第5条带切眼及上出口(风巷),并采用AM法进行数据采集,B和N极都置于无穷远处。通过检测开采活动中的视电阻率响应、自然电场响应及电流响应,发现网络并行电法仪采集的电位、电流数据能够实时反映底板岩层变化情况,其由反演计算的底板真实电阻率值能准确判断底板岩体的破坏深度;采用自然电场和一次场特征进行分析,对于检测工作面底板破坏程度具有明显效果。实践表明利用网络并行电法中的自然电位和视电阻率、真实电阻率可有效地判断底板破坏带的变动,准确地预测煤矿突水危险。 Bucun coal mine 9-1 coal strip mining method, the safety control factor is how to determine the reasonable size of the face, although the theoretical and statistical methods to provide safety dimensions of the face, but due to the complex conditions of the face, the actual production Still need to monitor the face of the water inrush hidden danger. To this end the measured work using the network parallel electric instrument along the side of the whole rock section of the roadway arranged 48 electrodes, respectively, in the first five with cut and the upper exit (airway), and the use of AM method Data acquisition, B and N poles are placed at infinity. Through detecting the apparent resistivity response, natural electric field response and current response in the mining activity, it is found that the potential and current data collected by the parallel electrical method in the network can reflect the change of floor rock formation in real time. The actual resistivity value Accurately determine the failure depth of the floor rock mass; using natural electric field and the characteristics of a field analysis, has obvious effect on the detection of the extent of floor damage. Practice shows that the use of network parallel electrical method of natural potential and apparent resistivity, the real resistivity can effectively determine the changes in the bottom plate damage, accurately predict the danger of water inrush.