摘要
矿井坑道掘进过程中常遭遇各类含导水地质构造(尤其是含导水断层),通过构建坑道掘进前方含水断层的理论地电模型,计算了不同参数条件下的视频散率的分布曲线,分析结果表明,视频散率对坑道含水断层的响应灵敏,是预测坑道超前水害的一种新方法。实践表明,该方法对坑道掘进前方含水体的预测精度较高,能为煤矿水害防治工作提供可靠的技术参数。
During mine tunnel excavation period,all kinds of water bearing geological structures(especially with water bearing fault)were often encountered.By constructing the theoretical geo-electric model of water bearing faults ahead of drift excavation,the distribution curves of the video dispersion under different parameters were calculated.The analysis results showed that the video dispersion was sensitive to the response of water bearing fault in tunnel,and it was a new way to predict advanced water damage of the tunnel.The practice showed that the method had higher prediction accuracy for water body in front of the tunnel,and can provide reliable technical parameters for water hazard prevention.
引文
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