SEISMOLOGY AND GEOLOGY ›› 2006, Vol. 28 ›› Issue (3): 411-418.

• Brief Report • Previous Articles     Next Articles

APPLICATION OF COMMON OFFSET SEISMIC REFLECTION METHOD TO URBAN ACTIVE FAULT SURVEY

LIU Bao-jin1, JI Ji-fa1, XU Zhao-fan1, YUAN Hong-ke1, LIAO Xu2, BAI Yun2, WAN Bo2   

  1. 1. Geophysical Prospecting Center, China Earthquake Administration, Zhengzhou 450002, China;
    2. Earthquake Administration of Liaoning Province, Shenyang 110031, China
  • Received:2006-04-19 Revised:2006-07-12 Online:2006-09-14 Published:2009-08-27

共偏移距地震反射波方法用于城市活断层探测

刘保金1, 姬继法1, 徐朝繁1, 袁洪克1, 廖旭2, 白云2, 万波2   

  1. 1. 中国地震局地球物理勘探中心, 郑州, 450002;
    2. 辽宁省地震局, 沈阳, 110031
  • 作者简介:刘保金,男,1962年生,1986年毕业于中国科学技术大学地球物理专业,高级工程师,中国科学院地质与地球物理研究所在职博士生,主要从事深地震反射和浅层地震勘探方法的研究与应用,电话:0371-63856467,E-mail:LBJ001@126.com.
  • 基金资助:
    国家发展与改革委员会项目“城市活断层试验探测”(20041138)资助

Abstract: The method and principle of common offset seismic survey as well as the field data gathering and processing technique were introduced briefly. Through two urban active fault survey examples in Fuzhou and Shenyang, the efficiency and limitation about using common offset seismic reflection technique to carry out urban active fault survey were probed. The results show that this technique has the properties of high resolving power, better reconstruction of subsurface structures, and real-time analyzing and interpreting of the investigating results on site. This method can be used to quickly locate the investigating objects accurately in the areas with thinner Q overburdens and strong bedrock interface fluctuations.

Key words: common offset seismic reflection method, optimizing arrangement window, active fault, resolution

摘要: 在简要介绍共偏移距地震反射波勘探方法原理、现场数据采集和室内资料处理方法的基础上,结合福州和沈阳2个城市的活断层探测实例,探讨了采用共偏移距地震反射波方法进行活断层探测的有效性和局限性。结果表明,该方法具有分辨率高、对地下构造的重现性好、探测结果可实时分析解释等特点,在第四纪覆盖层较薄、基岩面起伏变化较大的地区采用该方法可快速对被测目标进行准确定位。

关键词: 共偏移距地震反射法, 最佳接收窗口, 活断层, 分辨率

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