基于综合物探技术的煤厚超前探测研究
|
摘要
新义煤矿煤层厚度变化大,煤厚对煤与瓦斯突出具有重要的控制作用。为探测掘进巷道前方煤厚变化情况,采用网络并行电法、矿井瞬变电磁法及震波超前探测综合物探技术,对12011胶带运输巷煤厚变化进行超前探测。根据3种物探手段结果综合分析,胶带运输巷正头前方20~30 m处显示有一相对低阻区,地震存在强反射相位组,此范围内存在岩性变化,主要表现为煤层变薄;胶带运输巷正头前方65~75 m处有一相对高阻区,地震存在强反射相位组,主要表现为煤层变厚,其变化幅度较大;在正头前方30~60 m内局部可能存在煤厚变化。工程实际揭露表明,煤层赋存情况与探测结果一致,为瓦斯超前治理和巷道工程布置提供了重要参考。
The coal seam thickness changes greatly in Xinyi Mine,which has important control effect on coal and gas outburst.For detecting the thickness variation of coal seams in front of the excavation roadway,advance detection was carried out on the thickness variation of coal seams in 12011 belt-haulage gateway by using the network concurrency electrical method,the mine transient electromagnetic method and seismic method.The analysis of the detection results obtained with these three geophysical prospecting techniques indicated that there was a relatively low resistivity zone about 20m to 30m away in front of the belt gateway,the earthquake showed a strong reflection phase group,and in this range,the thickness of coal seams greatly decreased;there was a relatively high resistivity zone about 65m to 75m away in front of the belt gateway,the earthquake showed a strong reflection phase group,the thickness of coal seams greatly increased;the thickness of coal seams may locally change in 30m to 60m range.Engineering practice proved that the occurrence of coal seams was consistent with the detection results,which provided an important reference for the gas prevention and control and the layout of roadway projects.
The coal seam thickness changes greatly in Xinyi Mine,which has important control effect on coal and gas outburst.For detecting the thickness variation of coal seams in front of the excavation roadway,advance detection was carried out on the thickness variation of coal seams in 12011 belt-haulage gateway by using the network concurrency electrical method,the mine transient electromagnetic method and seismic method.The analysis of the detection results obtained with these three geophysical prospecting techniques indicated that there was a relatively low resistivity zone about 20m to 30m away in front of the belt gateway,the earthquake showed a strong reflection phase group,and in this range,the thickness of coal seams greatly decreased;there was a relatively high resistivity zone about 65m to 75m away in front of the belt gateway,the earthquake showed a strong reflection phase group,the thickness of coal seams greatly increased;the thickness of coal seams may locally change in 30m to 60m range.Engineering practice proved that the occurrence of coal seams was consistent with the detection results,which provided an important reference for the gas prevention and control and the layout of roadway projects.
引文
[1]高荣斌,贺志强,来争武,等.豫西新安煤田煤层厚度变化规律及其控制因素[J].煤田地质与勘探,2011,39(4):13-16.
[2]李松营.矿井综合物探技术在封堵特大型突水中的应用[J].煤炭科学技术,2011,39(11):23-26.
[3]刘盛东,王勃,周冠群,等.基于地下水渗流中地电场响应的矿井水害预警试验研究[J].岩石力学与工程学报,2009,28(2):267-272.
[4]于景邨,刘志新,汤金去,等.用瞬变电磁法探查综放工作面顶板水体的研究[J].煤炭学报,2007,36(4):542-547.
[5]于景邨,刘志新,刘树才,等.深部采场突水构造矿井瞬变电磁法探查理论及应用[J].煤炭学报,2007,32(8):818-822.
[6]梁庆华,宋劲.矿井多波多分量地震勘探超前探测原理与实验研究[J].中南大学学报:自然科学版,2009,40(5):1392-1399.
[7]程建远,姬广忠,朱培民.典型含煤模型Love型槽波的频散特征分析[J].煤炭学报,2012,37(1):67-72.
[8]王怀秀,彭苏萍,朱国维.微型检波一体化三分量地震仪及其应用[J].煤田地质与勘探,2003,31(3):45-49.
[9]吴荣新,方良成,周继生.采用网络并行电法仪探测采煤工作面无煤区[J].安徽理工大学学报:自然科学版,2007,27(2):6-9.
[10]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):53-58.
[11]张良,王心义,贾宏昭.瞬变电磁技术在顶板砂砾岩富水区探测中的应用[J].矿业安全与环保,2011,38(1):27-31.
[12]吴建宇,张创业.平煤十二矿矿井震波超前探测技术(MSP)应用研究[J].煤炭工程,2010(2):46-49.
[2]李松营.矿井综合物探技术在封堵特大型突水中的应用[J].煤炭科学技术,2011,39(11):23-26.
[3]刘盛东,王勃,周冠群,等.基于地下水渗流中地电场响应的矿井水害预警试验研究[J].岩石力学与工程学报,2009,28(2):267-272.
[4]于景邨,刘志新,汤金去,等.用瞬变电磁法探查综放工作面顶板水体的研究[J].煤炭学报,2007,36(4):542-547.
[5]于景邨,刘志新,刘树才,等.深部采场突水构造矿井瞬变电磁法探查理论及应用[J].煤炭学报,2007,32(8):818-822.
[6]梁庆华,宋劲.矿井多波多分量地震勘探超前探测原理与实验研究[J].中南大学学报:自然科学版,2009,40(5):1392-1399.
[7]程建远,姬广忠,朱培民.典型含煤模型Love型槽波的频散特征分析[J].煤炭学报,2012,37(1):67-72.
[8]王怀秀,彭苏萍,朱国维.微型检波一体化三分量地震仪及其应用[J].煤田地质与勘探,2003,31(3):45-49.
[9]吴荣新,方良成,周继生.采用网络并行电法仪探测采煤工作面无煤区[J].安徽理工大学学报:自然科学版,2007,27(2):6-9.
[10]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):53-58.
[11]张良,王心义,贾宏昭.瞬变电磁技术在顶板砂砾岩富水区探测中的应用[J].矿业安全与环保,2011,38(1):27-31.
[12]吴建宇,张创业.平煤十二矿矿井震波超前探测技术(MSP)应用研究[J].煤炭工程,2010(2):46-49.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心