综合物探方法在某过江隧道工程勘察中的应用研究
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摘要
主要介绍了地震反射波、水域高密度电法和高频大地电磁测深物探方法在过江隧道工程勘察中的应用,水域工程的物探方法首选地震反射波,但在水较浅、水底介质较硬的地方,水底多次波很严重,下覆地层的有效信号弱,难以得到理想的效果。在地震反射波方法失效的情况下,尝试采用水域高密度电法和高频大地电磁测深法探查构造低阻异常地质体,取得了一些测试成果,通过综合对比,相互佐证,提高了勘探成果的可靠程度。
The application of geophysical prospecting technologies,including seismic reflection wave technology,high density resistivity technology and high frequency magnetotelluric technology,in the exploration of a river-crossing tunnel is presented.The seismic reflection wave technology is the first choice for the exploration of underwater projects.When the seismic reflection wave technology is used in underwater projects where the water is shallow and the media under water is hard,the prospecting result is not so accurate.When the seismic reflection wave technology is ineffective,high density resistivity technology and high frequency magnetotelluric technology are tried and good results are achieved.The reliability of the prospecting results is improved by means of mutual comparison and verification on the prospecting results obtained by different technologies.
The application of geophysical prospecting technologies,including seismic reflection wave technology,high density resistivity technology and high frequency magnetotelluric technology,in the exploration of a river-crossing tunnel is presented.The seismic reflection wave technology is the first choice for the exploration of underwater projects.When the seismic reflection wave technology is used in underwater projects where the water is shallow and the media under water is hard,the prospecting result is not so accurate.When the seismic reflection wave technology is ineffective,high density resistivity technology and high frequency magnetotelluric technology are tried and good results are achieved.The reliability of the prospecting results is improved by means of mutual comparison and verification on the prospecting results obtained by different technologies.
引文
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[2]刘宏岳.水域浅层地震反射波勘探数据处理及工程实例[J].福建建设科技,2008(2):28,33.(LIU Hongyue.Shallow marine seismic reflection data processing and itsgeotechnical application[J].Fujian Construction Science&Technology,2008(2):28,33.(in Chinese))
[3]刘宏岳.地震反射波CDP叠加技术在海域花岗岩孤石探测中的应用[J].工程地球物理学报,2011,7(6):714-718.(LIU Hongyue.Marine seismic reflection for the detection ofthe weathering residues in the granite[J].Chinese Journal ofEngineering Geophysics,2011,7(6):714-718.(in Chinese))
[4]祝杰,亢会明,杜毅,等.水域高密度电法在工程地质勘察中的应用研究[J].勘察科学技术,2011(2):60-61.(ZHU Jie,KANG Huiming,DU Yi,et al.Study on appli-cation of high density resistivity method in engineering geo-logical investigation[J].Site Investigation Science andTechnology,2011(2):60-61.(in Chinese))
[5]王士鹏.高密度电法在水文地质和工程地质中的应用[J].水文地质工程地质,2000(1):26-28.(WANGShipeng.Application of high-density resistivity method to thehydrogeology and engineering geology[J].Hydrogeology andEngineering Geology,2000(1):26-28.(in Chinese))
[6]朱德兵.工程地球物理方法技术研究现状综述[J].地球物理学进展,2002,17(1):163-170.(ZHU Debing.Sum-marization of engineering geophysics in major of geophysicalprospecting and information technique[J].Progress in Geo-physics,2002,17(1):163-170.(in Chinese))
[7]祝杰,杜毅,亢会明,等.高密度电法在水域工程勘察中的应用[J].工程勘察,2011(10):80-83.(ZHU Jie,DUYi,KANG Huiming,et al.Research on the application of a-quatic multi-electrode electric method in the geological surveyproject[J].Geotechnical Investigation&Surveying,2011(10):80-83.(in Chinese))
[8]葛双成,梁国钱,陈夷,等.探地雷达和高密度电阻率法在坝体渗漏探测中的应用[J].水利水电科技进展,2005,25(5):55-57.(GE Shuangcheng,LIANG Guo-qian,CHEN Yi,et al.Application of GPR and high-densityresistivity method to leakage detection of dam bodies[J].Advances in Science and Technology of Water Resources,2005,25(5):55-57.(in Chinese))
[9]李金铭.地电场与电法勘探[M].北京:地质出版社,2005:210-211.(LI Jinming.Geoelectric field and electricalprospecting[M].Beijing:Geological Press,2005:210-211.(in Chinese))
[10]谢尚平,熊章强,易清平,等.浅层地震和高密度电法在滑坡体勘察中的应用[J].东华理工学院学报,2005,27(4):361-364.(XIE Shangping,XIONG Zhangqiang,YIQingping,et al.Application of landslide survey by usingshallow seismometry and high-density resistivity method[J].Journal of East China Institute of Technology,2005,27(4):361-364.(in Chinese))
[11]何继善,鲍力知.海洋电磁法研究的现状和进展[J].地球物理学进展,1999,14(1):7-39.(HE Jishan,BAOLizhi.The situation and progress of marine electromagneticmethod research[J].Progress in Geophysics,1999,14(1):7-39.(in Chinese))
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