基于阵列式并行电法的掘进前方富水性探测
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摘要
阵列式并行电法突破了传统电法逐点供电、测量的局限性,实现了阵列式单极、多极供电及同步并行测量的方法改进。通过巷道空腔影响及干扰校正,建立偏移模型并进行偏移叠加及网格化处理,优化超前探测地质异常提取技术,可提高超前探准确性和可靠性。龙岩市小井尖煤矿探测应用实例证明:该方法用于福建小煤矿掘进巷道迎头前方含水性超前预测是可行的,预报结果与巷道掘进的实际情况吻合。
Aligned array parallel electrical method breaks through the limitation of point-by-point power supply and measurement of the traditional electric method, and realizes the method improvement of single pole, multipole power supply and synchronous parallel measurement. Based on the influence of tunnel cavity and interference correction, the migration model is established and the migration stack and grid processing are carried out, and the anomaly extraction technology of advanced detection can be optimized, with the accuracy and reliability of advanced detection improved. Through the application example of Xiaojingjian Coal Mine in Longyan, it is proved that this method is feasible for the prediction of water abundance ahead of the roadway of small coal mine in Fujian Province. The forecast result is in accordance with the actual situation of roadway tunneling.
Aligned array parallel electrical method breaks through the limitation of point-by-point power supply and measurement of the traditional electric method, and realizes the method improvement of single pole, multipole power supply and synchronous parallel measurement. Based on the influence of tunnel cavity and interference correction, the migration model is established and the migration stack and grid processing are carried out, and the anomaly extraction technology of advanced detection can be optimized, with the accuracy and reliability of advanced detection improved. Through the application example of Xiaojingjian Coal Mine in Longyan, it is proved that this method is feasible for the prediction of water abundance ahead of the roadway of small coal mine in Fujian Province. The forecast result is in accordance with the actual situation of roadway tunneling.
引文
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[2]邱占林,陈万煌,鲍道亮,等.多种物探技术联合探测矿井水害[J].矿业安全与环保,2016,43(4):60-63.
[3]张平松,李永盛,胡雄武.巷道掘进直流电阻率法超前探测技术应用探讨[J].地下空间与工程学报,2013,9(1):135-140.
[4]胡水根,刘盛东.电法勘探中并行数据采集与传统数据采集效率的比较研究[J].地球物理学进展,2010,25(2):612-617.
[5]吴超凡,邱占林,杨胜伦,等.网络并行电法与传统电法超前探测效果对比[J].物探与化探,2015,39(1):136-140.
[6]施龙青,牛超,翟培合,等.三维高密度电法在顶板水探测中应用[J].地球物理学进展,2013,28(6):3276.
[7]岳建华,刘志新.井—地三维电阻率成像技术[J].地球物理学进展,2005,20(2):407-411.
[8]刘盛东,吴荣新,张平松,等.三维并行电法勘探技术与矿井水害探查[J].煤炭学报,2009,34(7):927.
[9]吴荣新,张平松,刘盛东.双巷网络并行电法探测工作面内薄煤区范围[J].岩石力学与工程学报,2009,28(9):1834-1838.
[10]吴超凡,刘盛东,邱占林,等.矿井采空区积水网络并行电法探测技术[J].煤炭科学技术,2013,41(4):93-95.
[11]王勃,刘盛东,张朋.采用网络并行电法仪进行煤矿底板动态监测[J].中国煤炭地质,2009,21(3):53.
[12]鲍道亮,刘耀华,邱占林.网络并行电法技术探测煤矿地质异常体[J].龙岩学院学报,2016,34(2):124.
[13]韩德品,李丹,程久龙,等.超前探测灾害性含导水地质构造的直流电法[J].煤炭学报,2010,35(4):635.
[14]闫述,石显新,陈明生.井下超前探测的球壳电位与异常[C]∥2007地下工程中的地球物理探测技术研讨会.西安:中国地球物理学会陕西省地球物理学会,2007:68-69.
[15]王恩营,李锐,刘仰光,等.井下直流电法超前探测低阻区水与瓦斯视电阻率响应分析[J].煤矿安全,2018,49(3):168-171.
[16]陈泉霖.福建含煤区逆冲推覆构造的类型及其对煤炭赋存的影响[J].煤炭学报,2017,42(S2):459.