矿井工作面透射地震层析物理模拟实验研究
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摘要
透射地震CT技术应用于矿井工作面中小断层和陷落柱的探测在理论上是可行的.通过3个室内物理模型的模拟,证明透射地震CT技术能够对介质差异明显的界面反应清晰,即对模拟的煤层中小型断裂构造和高速异常体反应灵敏.因而该技术可有效地应用于矿井工作面中小断层和高速陷落柱的探测,为其在井下的实际应用提供了充分的证据.
It is theoretically feasible that transmission seismic layer computer tomography technique can be used to detect the small faults and collapse columns in the mining working face. Three indoor physical simulations verify that the transmission seismic layer computer tomography technique has a strong response to the interface where media has apparent difference( responding sensitively to the small faults and the high-speed anomalous bodies in the simulated coal seam). Therefore,this technology can be effectively used in the detection of small faults and high-speed karsts collapse columns in the mining working face. The present work provides support for its practical application in the mine.
It is theoretically feasible that transmission seismic layer computer tomography technique can be used to detect the small faults and collapse columns in the mining working face. Three indoor physical simulations verify that the transmission seismic layer computer tomography technique has a strong response to the interface where media has apparent difference( responding sensitively to the small faults and the high-speed anomalous bodies in the simulated coal seam). Therefore,this technology can be effectively used in the detection of small faults and high-speed karsts collapse columns in the mining working face. The present work provides support for its practical application in the mine.
引文
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[22]Zhou G Q,Liu S D,Guo L Q,et al.Application of seismic wave CT technology to detect geological abnormal strueture in coal mining face[J].Coal Science and Technology,2007,35(4):37-40(in Chinese).周官群,刘盛东,郭立全,等.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.
[23]Peng S P,Ling B C,Liu S D.Application of seismic tomography in longwall top-coal caving face[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(12):1 786-1 790(in Chinese).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):1 786-1 790.
[24]Zhang P S,Liu S D.Character appearance of fault structure in seismic wave CT inversion form ine work faces detecting[J].Journal of China Coal Society,2006,31(1):35-39(in Chinese).张平松,刘盛东.断层构造在矿井工作面震波CT反演中的特征显现[J].煤炭学报,2006,31(1):35-39.
[25]Zhang P S,Liu S D,Wu R X.Observation of overburden failure of coal seam by CT of seismic wave[J].Chinese Journal of Rock Mechanics and Engineering,2004,33(15):2 510-2 513(in Chinese).张平松,刘盛东,吴荣新.地震波CT技术探测煤层上覆岩层破坏规律[J].岩石力学与工程学报,2004,33(15):2 510-2 513.
[26]Chapman C H.Generalized Radon transforms and slant stackes[J].Geophys J R Astr Soc,1981,66:266-277.
[2]Guo R,Dong X T,Zhang X G.Gateway radio wave penetration technology for small geological structure in fully mechanized coal mining face[J].Coal Science and Technology,2009,37(11):99-101(in Chinese).郭然,董秀桃,张旭刚.综采面地质小构造无线电波坑道透视技术[J].煤炭科学技术,2009,37(11):99-101.
[3]Yu J C,Liu Z X,Yue J H,et al.Development and prospect of geophysical technology in deep mining[J].Progress in Geophysics,2007,22(4):596-592(in Chinese).于景邨,刘志新,岳建华,等.煤矿深部开采中的地球物理技术现状及展望[J].地球物理学进展,2007,22(4):596-592.
[4]吴泰然,何国琦.普通地质学[M].北京:北京大学出版社,2003.
[5]徐振邦,娄元仁.数学地质基础[M].北京:北京大学出版社,1994.
[6]刘盛东,张平松.地下工程震波探测技术[M].徐州:中国矿业大学出版社,2008.
[7]Liu S D,Li C H,Yang W.Ray tracing method in seismic chromatography CT[J].Journal of Huai Nan Institute of Technology,1999(3):1-4(in Chinese).刘盛东,李承华,杨伟.透射地震层析成像中射线追踪技术[J].淮南工业学院学报,1999(3):1-4.
[8]Liu S D,Li C H.Algorithm and comparison of seismic travel time computerized tomography technique[J].Journal of China University of Mining&Technology,2000,29(2):211-214(in Chinese).刘盛东,李承华.地震走时层析成像算法与比较[J].中国矿业大学学报,2000,29(2):211-214.
[9]Aki K,Christoffersson A,Husebye E S.Three-dimensional seismic of the lithosphere under Montana LASA[J].Seismol Soc Am,1976,66:501-524.
[10]Aki K,Lee W H K.Determination of three dimensional velocity anomalies under a seismic array using first P arrival times form local earthquakes:a homogeneous initial model[J].Journal of Geophysical Research,1976,81:4 381-4 399.
[11]Aki K,Christoffersson A,Husebye E S,et al.Determination of the three-dimensional seismic structure of the lithosphere[J].Journal of Geophysical Research,1977,82:277-296.
[12]Dines K A,Lytle R J.Computerized geophysical tomography[C]∥Proc of IEEE on Applications of Electromagnetic Theory to Geophysical Research.1979,67:1 065-1 073.
[13]Daily W D.Underground oil-shale retort monitoring using geotomography[J].Geophysics,1984,49:1 701-1 711.
[14]Somerstein.Radio-frequencey geotomography for remotely probing the interior of operating mini and commercial sized oil shale retorts[J].Geophysics,1984,49:1 288-1 300.
[15]Pratt R G,Worthington M H.The application of diffraction tomograply to crossbole seismic data[J].Geophysics,1988,53:1 284-1 294.
[16]Bishop T N,Bube K P,Cutler R T,et al.Tomographic determination of velocity and depth in laterally varying media[J].Geophysics,1985,50:903-923.
[17]Harris J M,Nolerr Hoeksema R C,Langan R T,et al.High resolution cross well imaging of a west Texas carbonate reservoir[J].GeoPhysics,1995,60(3):667-726.
[18]Gustavsson M,Lvansson S,More P,et al.Seismic borehole tomography measurement system and field studies[J].Proc of IEEE on Geotomography,1986,74:339-346.
[19]Zhao Y G,Wang C F,Chen Y M,et al.Seismic tomography and its application to prospecting of concealed nickel-copper ore[J].Chinese Journal of Geophysics,1996,39(2):2782-2789(in Chinese).赵永贵,王超凡,陈燕民,等.地震CT在寻找隐伏铜镍矿中的应用[J].地球物理学报,1996,39(2):2782-2789.
[20]Sandberg E V,Olsson O L,Falk L R.Combined interpretation of fracture zones in crystalline rock using singe hole,cross hole tomography and directional borehole radar data[J].The Log analyse,1991,32:108-119.
[21]Liu S D,Li C H.Characters of fault in coal seam appeared in the reconstruction image of two gateways sound wave CT system[J].Journal of China Coal Society,2000,25(3):230-233(in Chinese).刘盛东,李承华.煤层内断层在双巷声波CT重建图像中的表现[J].煤炭学报,2000,25(3):230-233.
[22]Zhou G Q,Liu S D,Guo L Q,et al.Application of seismic wave CT technology to detect geological abnormal strueture in coal mining face[J].Coal Science and Technology,2007,35(4):37-40(in Chinese).周官群,刘盛东,郭立全,等.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.
[23]Peng S P,Ling B C,Liu S D.Application of seismic tomography in longwall top-coal caving face[J].Chinese Journal of Rock Mechanics and Engineering,2002,21(12):1 786-1 790(in Chinese).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):1 786-1 790.
[24]Zhang P S,Liu S D.Character appearance of fault structure in seismic wave CT inversion form ine work faces detecting[J].Journal of China Coal Society,2006,31(1):35-39(in Chinese).张平松,刘盛东.断层构造在矿井工作面震波CT反演中的特征显现[J].煤炭学报,2006,31(1):35-39.
[25]Zhang P S,Liu S D,Wu R X.Observation of overburden failure of coal seam by CT of seismic wave[J].Chinese Journal of Rock Mechanics and Engineering,2004,33(15):2 510-2 513(in Chinese).张平松,刘盛东,吴荣新.地震波CT技术探测煤层上覆岩层破坏规律[J].岩石力学与工程学报,2004,33(15):2 510-2 513.
[26]Chapman C H.Generalized Radon transforms and slant stackes[J].Geophys J R Astr Soc,1981,66:266-277.
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