坑道隐伏陷落柱直流电阻率法超前探测分析
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摘要
随着我国煤层开采不断趋向深部,坑道掘进过程中常遭遇陷落柱等含水地质构造,实际中常采用直流电阻率法进行超前探查.为研究该方法对陷落柱探测的可靠性,以圆柱体模型代替陷落柱目标体,推导了全空间点源超前探测视电阻率计算公式,提出了探半比概念以讨论超前探测极限问题.通过对不同地质参数模型的视电阻率进行计算与分析,结果表明:三极装置对应的视电阻率异常极值位置是目标体的距离2～3倍,且具有较高的视电阻率异常幅度,但受到目标体方位、电性及半径等参数的综合影响,仅利用视电阻率异常极值位置难以实现目标体的准确定位.理论分析与工程实践进一步指出,该方法存在探半比偏小及异常信息提取难度大等不足,需深入开展针对性的研究工作.
With the continuous mining of deep coal seams in China, the direct current resistivity method is often used to detect the water-bearing geological structures such as the collapse columns that usually met in the process of roadway excavation. In order to further study the reliability of the method for detecting collapse columns, the formula of apparent resistivity of point electrical source in full space was derived using a cylinder model as an object of collapse column. Through calculation and analysis of apparent resistivity of many different models with geological characteristic parameters, the results show that, the abnormal extreme position of apparent resistivity observed by the Pole-Dipole device is 2～3 times the distance of target body, and the apparent resistivity has a higher anomaly amplitude, but it is affected by the comprehensive parameters such as the orientation, electrical property and radius of the target body. So, it is difficult to determine exactly the target body only using the place of the anomalous extreme. Theoretical analysis and engineering practice further point out that the method also has some deficiencies, such as small detect-radius ratio and the difficulty in extracting abnormal information, etc., it require further targeted research.
With the continuous mining of deep coal seams in China, the direct current resistivity method is often used to detect the water-bearing geological structures such as the collapse columns that usually met in the process of roadway excavation. In order to further study the reliability of the method for detecting collapse columns, the formula of apparent resistivity of point electrical source in full space was derived using a cylinder model as an object of collapse column. Through calculation and analysis of apparent resistivity of many different models with geological characteristic parameters, the results show that, the abnormal extreme position of apparent resistivity observed by the Pole-Dipole device is 2～3 times the distance of target body, and the apparent resistivity has a higher anomaly amplitude, but it is affected by the comprehensive parameters such as the orientation, electrical property and radius of the target body. So, it is difficult to determine exactly the target body only using the place of the anomalous extreme. Theoretical analysis and engineering practice further point out that the method also has some deficiencies, such as small detect-radius ratio and the difficulty in extracting abnormal information, etc., it require further targeted research.
引文
CHENG J L,LI F,PENG S P,et al.2014.Research progress and development direction on advanced detection in mine roadway working face using geophysical methods [J].Journal of China Coal Society (in Chinese),39(8):1742-1750,doi:10.13225/j.cnki.jccs.2014.9007.
HAN D P.2009.“Geology-electricity-temperature” multi-parameter synthesized leading detection technology and applications [J].Journal of China Coal Society (in Chinese),34(7):1499-1506,doi:10.13225/j.cnki.jccs.2009.11.020.
HAN D P,LI D,CHENG J L,et al.2010.DC method of advanced detecting disastrous water-conducting or water-bearing geological structures along same layer [J].Journal of China Coal Society (in Chinese),35(4):635- 639,doi:10.13225/j.cnki.jccs.2010.04.002.
HU X W,ZHANG P S,WU R X,et al.2010.Study on the advanced detection technique by multi-electrode direct current resistivity in mines [J].Progress in Geophysics (in Chinese),25(5):1709-1715,doi:10.3969/j.issn.1004-2903.2010.05.026.
HU X W,ZHANG P S,YAN J P,et al.2014.Improvement of means for interpretation of advanced water detection of tunnels by transient electromagnetic method [J].Chinese Journal of Geotechnical Engineering (in Chinese),36(4):654- 661,doi:10.11779/CJGE201404009.
HUANG J G,RUAN B Y,WANG J L.2007.The fast inversion for advanced detection using DC resistivity in tunnel [J].Chinese Journal of Geophysics (in Chinese),50(2):619- 624,doi:10.3321/j.issn:0001-5733.2007.02.037.
HUANG J G,WANG J L,RUAN B Y.2006.A study on advanced detection using DC resistivity method in tunnel [J].Chinese Journal of Geophysics (in Chinese),49(5):1529-1538,doi:10.3321/j.issn:0001-5733.2006.05.035.
JIANG J P,HE L,ZHU P M,et al.2018.TVSP method for reconnaissance beyond coal roadway based on in-seam seismic waves:A feasibility study [J].Chinese Journal of Geophysics (in Chinese),61(9):3865-3875,doi:10.6038/cjg2018L0146.
LI D,HAN D P,SHI Y D,et al.2010.A DC electrical penetration method for prospecting the coal face alone the same coal layer [J].Journal of China Coal Society (in Chinese),35(8):1336-1340,doi:10.13225/j.cnki.jccs.2010.08.003.
LIU X G,LING C H,LIU Z M,et al.2016b.Focusing dual-frequency induced polarization on electric field scanning method in coal mine roadway [J].Journal of China Coal Society (in Chinese),41(9):2388-2395,doi:10.13225/j.cnki.jccs.2016.0713.
LIU Y,WU X P.2016a.Parallel Monte Carlo method for advanced detection in tunnel incorporating anisotropic resistivity effect [J].Chinese J.Geophys.(in Chinese),59(11):4297- 4309,doi:10.6038/cjg20161130.
LIU Z M,LIU X G,ZHANG J T,et al.2015.Experimental simulation of resistance-capacitance model for advanced detection in coal roadway based on alternating current focusing induced polarization method [J].Journal of China Coal Society (in Chinese),40(9):2144-2151,doi:10.13225/j.cnki.jccs.2014.1555.
LU J J,WU X P,Klaus S.2010.Algebraic multigrid method for 3D DC resistivity modelling [J].Chinese Journal of Geophysics (in Chinese),53(3):700-707,doi:10.3969/j.issn.0001-5733.2010.03.025.
LU T,LIU S D,WANG B.2015.Application of integrated mining geophysical method in detection of water-bearing faults [J].Progress in Geophysics (in Chinese),30(3):1371-1375,doi:10.6038/pg20150349.
QIAO Y H,TENG J W.2018.Calculation method for theoretical dispersion curves of seismic channel waves considering variation of coal-seam thickness and analysis of dispersion characteristics [J].Chinese Journal of Geophysics (in Chinese),61(8):3374-3384,doi:10.6038/cjg2018K0684.
WU R X,LIU S D,ZHOU G Q.2007.High-resolution ground electric resistance rate method to probe unusual mass in mine geology [J].Coal Science and Technology (in Chinese),35(7):33-34,doi:10.3969/j.issn.0253-2336.2007.07.009.
WU R X,ZHANG P S,LIU S D,et al.2010.Radio wave penetration by the device of one-transmitter and two-receivers for coal face and its application [J].Journal of China Coal Society (in Chinese),35(S1):170-174,doi:10.13225/j.cnki.jccs.2010.s1.024.
ZHANG P S,LI Y S,HU X W.2013.Application and discussion of the advanced detection technology with DC resistivity method in tunnel [J].Chinese Journal of Underground Space and Engineering (in Chinese),9(1):135-140.
ZHANG J T,ZHOU Y,LIU Z M,et al.2015.Dual-frequency induced polarization method for advanced detection on disastrous water-conducting or water-bearing structure in roadway [J].Journal of China Coal Society (in Chinese),40(8):1894-1899,doi:10.13225/j.cnki.jccs.2015.0387.
程久龙,李飞,彭苏萍,等.2014.矿井巷道地球物理方法超前探测研究进展与展望[J].煤炭学报,39(8):1742-1750,doi:10.13225/j.cnki.jccs.2014.9007.
韩德品.2009.“地质-电法-测温”多参数综合超前探测技术及应用[J].煤炭学报,34(11):1499-1506,doi:10.13225/j.cnki.jccs.2009.11.020.
韩德品,李丹,程久龙,等.2010.超前探测灾害性含导水地质构造的直流电法[J].煤炭学报,35(4):635- 639,doi:10.13225/j.cnki.jccs.2010.04.002.
胡雄武,张平松,吴荣新,等.2010.矿井多极供电电阻率法超前探测技术研究[J].地球物理学进展,25(5):1709-1715,doi:10.3969/j.issn.1004-2903.2010.05.026.
胡雄武,张平松,严家平,等.2014.坑道掘进瞬变电磁超前探水解释方法的改进研究[J].岩土工程学报,36(4):654- 661,doi:10.11779/ CJGE201404009.
黄俊革,阮百尧,王家林.2007.坑道直流电阻率法超前探测的快速反演[J].地球物理学报,50(2):619- 624,doi:10.3321/j.issn:0001-5733.2007.02.037.
黄俊革,王家林,阮百尧.2006.坑道直流电阻率法超前探测研究[J].地球物理学报,49(5):1529-1538,doi:10.3321/j.issn:0001-5733.2006.05.035.
蒋锦朋,何良,朱培民,等.2018.基于槽波的TVSP超前探测方法:可行性研究[J].地球物理学报,61(9):3865-3875,doi:10.6038/cjg2018L0146.
李丹,韩德品,石亚丁,等.2010.采煤工作面顺煤层透视的电法探测方法[J].煤炭学报,35(8):1336-1340,doi:10.13225/j.cnki.jccs.2010.08.003.
刘希高,凌春晖,刘志民,等.2016b.矿用聚焦双频激电法电场扫描探测方法[J].煤炭学报,41(9):2388-2395,doi:10.13225/j.cnki.jccs.2016.0713.
刘洋,吴小平.2016a.巷道超前探测的并行Monte Carlo方法及电阻率各向异性影响[J].地球物理学报,59(11):4297- 4309,doi:10.6038/cjg20161130.
刘志民,刘希高,张金涛,等.2015.交流聚焦激电法煤巷超前探测阻容试验模拟[J].煤炭学报,40(9):2144-2151,doi:10.13225/j.cnki.jccs.2014.1555.
鲁晶津,吴小平,Klaus Spitzer.2010.直流电阻率三维正演的代数多重网格方法.地球物理学报,53(3):700-707,doi:10.3969/j.issn.0001-5733.2010.03.025.
路拓,刘盛东,王勃.2015.综合矿井物探技术在含水断层探测中的应用[J].地球物理学进展,30(3):1371-1375,doi:10.6038/pg20150349.
乔勇虎,滕吉文.2018.煤层厚度变化时地震槽波理论频散曲线计算方法及频散特征分析[J].地球物理学报,61(8):3374-3384,doi:10.6038/cjg2018K0684.
吴荣新,刘盛东,周官群.2007.高分辨地电阻率法探测煤矿地质异常体[J].煤炭科学技术,35(7):33-34,doi:10.3969/j.issn.0253-2336.2007.07.009
吴荣新,张平松,刘盛东,等.2010.矿井工作面无线电波透视“一发双收”探测与应用[J].煤炭学报,35(S1):170-174,doi:10.13225/j.cnki.jccs.2010.s1.024.
张平松,李永盛,胡雄武.2013.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,9(1):135-140.
张金涛,周游,刘志民,等.2015.超前探测巷道灾害性含导水构造的双频激电法[J].煤炭学报,40(8):1894-1899,doi:10.13225/j.cnki.jccs.2015.0387.
HAN D P.2009.“Geology-electricity-temperature” multi-parameter synthesized leading detection technology and applications [J].Journal of China Coal Society (in Chinese),34(7):1499-1506,doi:10.13225/j.cnki.jccs.2009.11.020.
HAN D P,LI D,CHENG J L,et al.2010.DC method of advanced detecting disastrous water-conducting or water-bearing geological structures along same layer [J].Journal of China Coal Society (in Chinese),35(4):635- 639,doi:10.13225/j.cnki.jccs.2010.04.002.
HU X W,ZHANG P S,WU R X,et al.2010.Study on the advanced detection technique by multi-electrode direct current resistivity in mines [J].Progress in Geophysics (in Chinese),25(5):1709-1715,doi:10.3969/j.issn.1004-2903.2010.05.026.
HU X W,ZHANG P S,YAN J P,et al.2014.Improvement of means for interpretation of advanced water detection of tunnels by transient electromagnetic method [J].Chinese Journal of Geotechnical Engineering (in Chinese),36(4):654- 661,doi:10.11779/CJGE201404009.
HUANG J G,RUAN B Y,WANG J L.2007.The fast inversion for advanced detection using DC resistivity in tunnel [J].Chinese Journal of Geophysics (in Chinese),50(2):619- 624,doi:10.3321/j.issn:0001-5733.2007.02.037.
HUANG J G,WANG J L,RUAN B Y.2006.A study on advanced detection using DC resistivity method in tunnel [J].Chinese Journal of Geophysics (in Chinese),49(5):1529-1538,doi:10.3321/j.issn:0001-5733.2006.05.035.
JIANG J P,HE L,ZHU P M,et al.2018.TVSP method for reconnaissance beyond coal roadway based on in-seam seismic waves:A feasibility study [J].Chinese Journal of Geophysics (in Chinese),61(9):3865-3875,doi:10.6038/cjg2018L0146.
LI D,HAN D P,SHI Y D,et al.2010.A DC electrical penetration method for prospecting the coal face alone the same coal layer [J].Journal of China Coal Society (in Chinese),35(8):1336-1340,doi:10.13225/j.cnki.jccs.2010.08.003.
LIU X G,LING C H,LIU Z M,et al.2016b.Focusing dual-frequency induced polarization on electric field scanning method in coal mine roadway [J].Journal of China Coal Society (in Chinese),41(9):2388-2395,doi:10.13225/j.cnki.jccs.2016.0713.
LIU Y,WU X P.2016a.Parallel Monte Carlo method for advanced detection in tunnel incorporating anisotropic resistivity effect [J].Chinese J.Geophys.(in Chinese),59(11):4297- 4309,doi:10.6038/cjg20161130.
LIU Z M,LIU X G,ZHANG J T,et al.2015.Experimental simulation of resistance-capacitance model for advanced detection in coal roadway based on alternating current focusing induced polarization method [J].Journal of China Coal Society (in Chinese),40(9):2144-2151,doi:10.13225/j.cnki.jccs.2014.1555.
LU J J,WU X P,Klaus S.2010.Algebraic multigrid method for 3D DC resistivity modelling [J].Chinese Journal of Geophysics (in Chinese),53(3):700-707,doi:10.3969/j.issn.0001-5733.2010.03.025.
LU T,LIU S D,WANG B.2015.Application of integrated mining geophysical method in detection of water-bearing faults [J].Progress in Geophysics (in Chinese),30(3):1371-1375,doi:10.6038/pg20150349.
QIAO Y H,TENG J W.2018.Calculation method for theoretical dispersion curves of seismic channel waves considering variation of coal-seam thickness and analysis of dispersion characteristics [J].Chinese Journal of Geophysics (in Chinese),61(8):3374-3384,doi:10.6038/cjg2018K0684.
WU R X,LIU S D,ZHOU G Q.2007.High-resolution ground electric resistance rate method to probe unusual mass in mine geology [J].Coal Science and Technology (in Chinese),35(7):33-34,doi:10.3969/j.issn.0253-2336.2007.07.009.
WU R X,ZHANG P S,LIU S D,et al.2010.Radio wave penetration by the device of one-transmitter and two-receivers for coal face and its application [J].Journal of China Coal Society (in Chinese),35(S1):170-174,doi:10.13225/j.cnki.jccs.2010.s1.024.
ZHANG P S,LI Y S,HU X W.2013.Application and discussion of the advanced detection technology with DC resistivity method in tunnel [J].Chinese Journal of Underground Space and Engineering (in Chinese),9(1):135-140.
ZHANG J T,ZHOU Y,LIU Z M,et al.2015.Dual-frequency induced polarization method for advanced detection on disastrous water-conducting or water-bearing structure in roadway [J].Journal of China Coal Society (in Chinese),40(8):1894-1899,doi:10.13225/j.cnki.jccs.2015.0387.
程久龙,李飞,彭苏萍,等.2014.矿井巷道地球物理方法超前探测研究进展与展望[J].煤炭学报,39(8):1742-1750,doi:10.13225/j.cnki.jccs.2014.9007.
韩德品.2009.“地质-电法-测温”多参数综合超前探测技术及应用[J].煤炭学报,34(11):1499-1506,doi:10.13225/j.cnki.jccs.2009.11.020.
韩德品,李丹,程久龙,等.2010.超前探测灾害性含导水地质构造的直流电法[J].煤炭学报,35(4):635- 639,doi:10.13225/j.cnki.jccs.2010.04.002.
胡雄武,张平松,吴荣新,等.2010.矿井多极供电电阻率法超前探测技术研究[J].地球物理学进展,25(5):1709-1715,doi:10.3969/j.issn.1004-2903.2010.05.026.
胡雄武,张平松,严家平,等.2014.坑道掘进瞬变电磁超前探水解释方法的改进研究[J].岩土工程学报,36(4):654- 661,doi:10.11779/ CJGE201404009.
黄俊革,阮百尧,王家林.2007.坑道直流电阻率法超前探测的快速反演[J].地球物理学报,50(2):619- 624,doi:10.3321/j.issn:0001-5733.2007.02.037.
黄俊革,王家林,阮百尧.2006.坑道直流电阻率法超前探测研究[J].地球物理学报,49(5):1529-1538,doi:10.3321/j.issn:0001-5733.2006.05.035.
蒋锦朋,何良,朱培民,等.2018.基于槽波的TVSP超前探测方法:可行性研究[J].地球物理学报,61(9):3865-3875,doi:10.6038/cjg2018L0146.
李丹,韩德品,石亚丁,等.2010.采煤工作面顺煤层透视的电法探测方法[J].煤炭学报,35(8):1336-1340,doi:10.13225/j.cnki.jccs.2010.08.003.
刘希高,凌春晖,刘志民,等.2016b.矿用聚焦双频激电法电场扫描探测方法[J].煤炭学报,41(9):2388-2395,doi:10.13225/j.cnki.jccs.2016.0713.
刘洋,吴小平.2016a.巷道超前探测的并行Monte Carlo方法及电阻率各向异性影响[J].地球物理学报,59(11):4297- 4309,doi:10.6038/cjg20161130.
刘志民,刘希高,张金涛,等.2015.交流聚焦激电法煤巷超前探测阻容试验模拟[J].煤炭学报,40(9):2144-2151,doi:10.13225/j.cnki.jccs.2014.1555.
鲁晶津,吴小平,Klaus Spitzer.2010.直流电阻率三维正演的代数多重网格方法.地球物理学报,53(3):700-707,doi:10.3969/j.issn.0001-5733.2010.03.025.
路拓,刘盛东,王勃.2015.综合矿井物探技术在含水断层探测中的应用[J].地球物理学进展,30(3):1371-1375,doi:10.6038/pg20150349.
乔勇虎,滕吉文.2018.煤层厚度变化时地震槽波理论频散曲线计算方法及频散特征分析[J].地球物理学报,61(8):3374-3384,doi:10.6038/cjg2018K0684.
吴荣新,刘盛东,周官群.2007.高分辨地电阻率法探测煤矿地质异常体[J].煤炭科学技术,35(7):33-34,doi:10.3969/j.issn.0253-2336.2007.07.009
吴荣新,张平松,刘盛东,等.2010.矿井工作面无线电波透视“一发双收”探测与应用[J].煤炭学报,35(S1):170-174,doi:10.13225/j.cnki.jccs.2010.s1.024.
张平松,李永盛,胡雄武.2013.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,9(1):135-140.
张金涛,周游,刘志民,等.2015.超前探测巷道灾害性含导水构造的双频激电法[J].煤炭学报,40(8):1894-1899,doi:10.13225/j.cnki.jccs.2015.0387.
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