地震CT技术在采煤工作面的应用研究
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摘要
基于近年来在多个采煤工作面开展的实测研究结果,论述了地震CT技术在采煤工作面进行不同目的探测时的应用原理、方法及解释原则。研究表明:基于地震波波速异常率分布可以对工作面开展冲击危险性评价,确定冲击危险区域;根据地震波波速条带异常分布规律,并结合相关地质资料,可开展工作面内断层展布情况精探;利用工作面前方波速分区特征,可进行工作面超前支承压力分布划定。
Based on the site measured study results of the seismic CT technology applied to several coal mining faces in the recent years,the paper stated the application principle,method and explanation of the seismic technology applied to coal mining face for different purpose detections.The study showed that based on the abnormal rate distribution of the seismic velocity,an evaluation on the mine pressure bumping danger of the coal mining face was conducted and the mine pressure bumping danger area was determined.According to the abnormal distribution law of the seismic wave velocity band and in combination with the related geological information,a detail exploration of the faults in the coal mining face could be conducted.With the application of the wave velocity zone features in front of coal mining face,the distribution of the pilot support pressure in front of the coal mining face could be divided.
Based on the site measured study results of the seismic CT technology applied to several coal mining faces in the recent years,the paper stated the application principle,method and explanation of the seismic technology applied to coal mining face for different purpose detections.The study showed that based on the abnormal rate distribution of the seismic velocity,an evaluation on the mine pressure bumping danger of the coal mining face was conducted and the mine pressure bumping danger area was determined.According to the abnormal distribution law of the seismic wave velocity band and in combination with the related geological information,a detail exploration of the faults in the coal mining face could be conducted.With the application of the wave velocity zone features in front of coal mining face,the distribution of the pilot support pressure in front of the coal mining face could be divided.
引文
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[5]付恩俊,王书文,石来阳,等.地震CT技术探测采煤工作面超前支承压力分布实践[J].煤炭工程,2011(7):39-41.
[6]巩思园.矿震震动波波速层析成像原理及其预测煤矿冲击危险应用实践[D].徐州:中国矿业大学,2010:91-109.
[7]彭苏萍,凌标灿,刘盛东.综采放顶煤工作面地震CT探测技术应用[J].岩石力学与工程学报,2002,21(12):1786-1790.
[8]彭永伟,蓝航,王书文,等.基于地质条件的冲击危险性动态预评价体系[J].煤炭学报,2010,35(12):1997-2001.
[9]周官群,刘盛东,郭立全.采煤工作面地质异常体震波CT探测技术[J].煤炭科学技术,2007,35(4):37-40.
[10]Friedelt M J,Jackson M J,Williams E M,et al.TomographicImaging of Coal Pillar Conditions:Observations and Implications[J].Int J Rock Mech Min Sci&Geomech,1996,33(3):279-290.
[11]Westman E C,Luxbacher,K D,Swanson P L.Local Earth-quake Tomography for Imaging Mining-Induced Changes With-in the Overburden Above a Longwall Mine[C]//The 42ndUS Rock Mechanics Symposium,San Francisco,USA,June29,2008.
[12]成谷,马在田,张宝金,等.地震层析成像中存在的主要问题及应对策略[J].地球物理学进展,2003,18(3):512-518.
[2]王辉,黄鼎成.地震层析成像方法及其在岩体结构中的应用[J].工程地质学报,2000,8(1):109-117.
[3]王文德,赵炯.弹性波CT技术及应用[J].煤田地质与勘探,1995,24(5)57-61.
[4]煤炭科学研究总院北京开采所.冲击地压煤层层析成像方法的试验研究[R].北京:煤炭科学研究总院北京开采所,1993.
[5]付恩俊,王书文,石来阳,等.地震CT技术探测采煤工作面超前支承压力分布实践[J].煤炭工程,2011(7):39-41.
[6]巩思园.矿震震动波波速层析成像原理及其预测煤矿冲击危险应用实践[D].徐州:中国矿业大学,2010:91-109.
[7]彭苏萍,凌标灿,刘盛东.综采放顶煤工作面地震CT探测技术应用[J].岩石力学与工程学报,2002,21(12):1786-1790.
[8]彭永伟,蓝航,王书文,等.基于地质条件的冲击危险性动态预评价体系[J].煤炭学报,2010,35(12):1997-2001.
[9]周官群,刘盛东,郭立全.采煤工作面地质异常体震波CT探测技术[J].煤炭科学技术,2007,35(4):37-40.
[10]Friedelt M J,Jackson M J,Williams E M,et al.TomographicImaging of Coal Pillar Conditions:Observations and Implications[J].Int J Rock Mech Min Sci&Geomech,1996,33(3):279-290.
[11]Westman E C,Luxbacher,K D,Swanson P L.Local Earth-quake Tomography for Imaging Mining-Induced Changes With-in the Overburden Above a Longwall Mine[C]//The 42ndUS Rock Mechanics Symposium,San Francisco,USA,June29,2008.
[12]成谷,马在田,张宝金,等.地震层析成像中存在的主要问题及应对策略[J].地球物理学进展,2003,18(3):512-518.
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