EH4电磁成像系统在高速公路长大深埋隧道勘察中的应用研究
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摘要
EH4电磁成像系统是一套双源型电磁法数据自动采集和处理的物探系统,它是CSAMT和MT的结合体。本文介绍了EH4的原理、特点、工作方法和资料处理。该系统首次运用于高速公路长大深埋隧道勘察中,结合其他手段,成功解译出了隧道的软弱层、地下水及断层破碎带的位置,为划分隧道围岩类别提供了较好的依据,同时也为高速公路长大深埋隧道提供了一种新的勘察方法。
EH4 electromagnetic image system is a set of dual-power electromagnetic auto collecting and processing geophysical exploration system. It is a combination of CSAMT and MT.The paper describes principles,characteristics,procedures and data analysis of EH4 using a case study in survey and investigation of the deeply-buried long tunnel in Expressway in Yunnan.EH4 successfully located soft and weak layer,underground water and broken fractures with assistance of other technical methods,which provides additional information needed for classification of surrounding rocks of the tunnel.This method also provides a new method for survey of deeply-buried long highway tunnels.
EH4 electromagnetic image system is a set of dual-power electromagnetic auto collecting and processing geophysical exploration system. It is a combination of CSAMT and MT.The paper describes principles,characteristics,procedures and data analysis of EH4 using a case study in survey and investigation of the deeply-buried long tunnel in Expressway in Yunnan.EH4 successfully located soft and weak layer,underground water and broken fractures with assistance of other technical methods,which provides additional information needed for classification of surrounding rocks of the tunnel.This method also provides a new method for survey of deeply-buried long highway tunnels.
引文
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[2]伍岳等.EH4电导率成像系统在砂岩型铀矿床上的应用研究[J].铀矿地质,1998,14(1):32~37.W u Yue,et al..Application ofEH4 conductivity Image System ToSandstone Type Uran ium D eposits.Uran ium Geology(Ch ina),1998,14(1):32~37.
[3]仵彦卿等.河西走廊黑河鼎新至哨马营段河水与地下水转化途径分析[J].冰川冻土,2000,22(1):73~77.W u Yanq ing,et al.Analysis of the Transformation Path BetweenStream Flow and G roundwater from D ingxin to Shaomaying in HeiR iver,Catchm entW estCh ina.Journal ofG laciology and Geocryolo-gy(Ch ina),2000,22(1):73~77.
[4]孙升林等.EH4电磁成像系统在中西部岩溶区地下水勘查中的应用[J].中国煤田地质,2001,13(3):67~68.Sun Shenglin,et al..Applications of EH4 E lectromagnetic Ima-ging System On Exploration ofUnderground W ater in KarstRegionof Central—western Ch ina.Coal Geology of Ch ina,2001,13(3):67~68.
[5]刘鸿泉等.电磁成像系统在煤矿中的应用研究[J].煤炭科学技术,2002,30(10):39~42.L iu Hongquan,et al..Applied research on electric magnetic im-age system in coal m ine.Coal Science and Technology(Ch ina),2002,30(10):39~42.
[6]祝顺义,陈庆凯.EH4电磁成像系统在水库大坝勘查渗漏的应用[J].有色矿冶,2004,20(2):10~12.Zhu Shunyi,Chen Q ingkai.Applications of EH4 E lectromagneticImaging System on Exploration of Baishan ReservoirDam Seepage.Non-ferrousM in ing and M etallurgy(Ch ina),2004,20(2):10~12.
[7]李辉,孙进忠,梁向前,王园.利用波动参数检测路基施工质量的试验研究[J].工程地质学报,2004,12(2):221~224.L iHu i,Sun Jinzhong,L iang X iangq ian,W ang Yuan.The test ofroad base construction quality using wave propagation m ethod.Journal of Engineer Geology,2004,12(2):221~224.
[8]娄国充,康中山,郭增强.土钉支护结构的施工监测与变形控制[J].工程地质学报,2004,12(3):323~327.Lou Guochong,Kang Zhongshan,Guo Zengq iang.Mon itoring thedeformation of the soil-nailing support structure and its control.Journal of Engineering Geology,2004,12(3):323~327.
[9]张丹,施斌,徐洪钟.基于BOTDR的隧道应变监测研究[J].工程地质学报,2004,12(4):422~426.Zhang Dan,Sh i B in,Xu Hongzhong.The BOTDR-based strainmon itoring for tunnel.Journal of Engineering Geology,2004,12(4):422~426.
[10]孙宇,肖宽怀,赵永贵.地震CT勘探原理及其在公路隧道病害诊断中的应用[J].工程地质学报,2003,11(4):440~444.Sun Yu,X iao Kuanhua,Zhao Yonggu i.The principal of seism iccomputer-aided tomography and its application to exam ination oftunnel hazards in h ighway.Journal of Engineering Geology,2003,11(4):440~444.
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