综合物探方法在隧道勘察中的应用
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摘要
中西部地区铁路沿线的地形、地质条件复杂,直接进行隧道工程建设将会有较大的安全隐患,为了预防施工过程中可能出现的由不良地质现象引发的事故,采用综合物探方法对隧道线路周围的断层位置及产状、地层岩性分界情况等进行勘察,进而指导地质钻探工作的有目的进行,为隧道开挖过程中避开各种地质危害提供依据,保障施工安全。通过对隧道待勘察路段的地质地貌分析,通过甄选对比,并根据勘察任务要求,有针对性的选择应用地震折射法和高密度电法进行综合勘察。文中详述了地震折射法和高密度电法的野外工作方法技术、资料处理,并根据勘察目的,先单独解释两种勘察方法的效果,再综合两种方法对该路段的地质构造情况进行综合解释,推断出该高速铁路路段中的破碎带、断层及其走向等不良地质情况。最后对地震折射法和高密度电法进行综合勘察应用效果做了评价。
The topographic and geologic conditions along the railway in the central and western areas are complex.Direct tunnel construction will have great security risk.In order to prevent the possible accidents caused by abnormal geological phenomena in the construction process,integrated geophysical methods were applied to detect the location and shape of the faults,as well as the lithology interface of the stratum,thereby guiding the purposive work of the geological drilling,and providing evidence to avoid a variety of geological hazards in the tunnel excavation process,and ensure the construction safety.According to the demand of survey tasks,high density resistively survey and seismic refraction method were used in the exploration of railway tunnel after analyzing the geology and topographic conditions.The field work technology、data-processing、results for process of seismic refraction method and high density resistively survey method are described in detail in this paper.To begin with,the application-effect each method has been showed respectively;at second,the application-effect of integrated geophysical prospecting method was showed in the exploration of railway tunnel,in this part,the fracture zone,faults and their trends were all inferred based on the application-effect of integrated geophysical prospecting methods.At last,author has evaluated the effectiveness of the integrated geophysical prospecting methods.
The topographic and geologic conditions along the railway in the central and western areas are complex.Direct tunnel construction will have great security risk.In order to prevent the possible accidents caused by abnormal geological phenomena in the construction process,integrated geophysical methods were applied to detect the location and shape of the faults,as well as the lithology interface of the stratum,thereby guiding the purposive work of the geological drilling,and providing evidence to avoid a variety of geological hazards in the tunnel excavation process,and ensure the construction safety.According to the demand of survey tasks,high density resistively survey and seismic refraction method were used in the exploration of railway tunnel after analyzing the geology and topographic conditions.The field work technology、data-processing、results for process of seismic refraction method and high density resistively survey method are described in detail in this paper.To begin with,the application-effect each method has been showed respectively;at second,the application-effect of integrated geophysical prospecting method was showed in the exploration of railway tunnel,in this part,the fracture zone,faults and their trends were all inferred based on the application-effect of integrated geophysical prospecting methods.At last,author has evaluated the effectiveness of the integrated geophysical prospecting methods.
引文
[1]Sherif R E,Geldart L P.Exploration seismology(Ver-sion2)[M].Chu Ying,Li Chengchu,Wang Hongwei,Translated.Beijing:Petroleum Industry Press,1999.523~556.
[2]王振东.浅层地震勘探应用技术[M].北京:地质出版社,1988.32~117.
[3]王传雷,董浩斌.物探技术在监测堤坝隐患上的应用[J].物探与化探,2001(4).
[4]张胜业,潘玉玲.应用地球物理学原理[M],武汉:中国地质大学出版社,2005.
[5]黄群佳,游力群.浅层地震技术在长江三峡库区滑坡勘察中的应用[J].湖北地矿,2002,16(3):18~21.
[6]熊章强,方根显.浅层地震勘探[M].北京:地震出版社,2002.
[7]石明,冯德山,戴前伟.综合物探方法在堤防质量检测中的应用[J].地球物理学进展,2006(4).
[8]吴子泉,刘元生,刘宝金,等.地球物理方法在城市地震断层精确定位中的应用[J].地球物理学进展,2005(2).
[9]刘彦华,熊章强,方根显,等,综合物探方法在泰井高速公路滑坡调查中的应用[J].工程地球物理学报,2007(4).
[10]董浩斌,王传雷,曾佐勋,等.高密度电法在信阳市燃气混气站场地隐伏断裂探测中的应用[J].地质科技情报,2003(1).
[11]应勇,何兰芳,杨伦凯,等.综合物探在J地区地热水勘探中的应用[J].工程地球物理学报,2006(4).
[2]王振东.浅层地震勘探应用技术[M].北京:地质出版社,1988.32~117.
[3]王传雷,董浩斌.物探技术在监测堤坝隐患上的应用[J].物探与化探,2001(4).
[4]张胜业,潘玉玲.应用地球物理学原理[M],武汉:中国地质大学出版社,2005.
[5]黄群佳,游力群.浅层地震技术在长江三峡库区滑坡勘察中的应用[J].湖北地矿,2002,16(3):18~21.
[6]熊章强,方根显.浅层地震勘探[M].北京:地震出版社,2002.
[7]石明,冯德山,戴前伟.综合物探方法在堤防质量检测中的应用[J].地球物理学进展,2006(4).
[8]吴子泉,刘元生,刘宝金,等.地球物理方法在城市地震断层精确定位中的应用[J].地球物理学进展,2005(2).
[9]刘彦华,熊章强,方根显,等,综合物探方法在泰井高速公路滑坡调查中的应用[J].工程地球物理学报,2007(4).
[10]董浩斌,王传雷,曾佐勋,等.高密度电法在信阳市燃气混气站场地隐伏断裂探测中的应用[J].地质科技情报,2003(1).
[11]应勇,何兰芳,杨伦凯,等.综合物探在J地区地热水勘探中的应用[J].工程地球物理学报,2006(4).
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