共偏移距地震反射波方法用于城市活断层探测
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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。
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.
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.
引文
刘保金,张先康,方盛明,等.2002.城市活断层探测的高分辨率浅层地震数据采集技术[J].地震地质,24(4):524—531.LIU Bao-jin,ZHANG Xian-kang,FANG Sheng-ming,et al.2002.High-resolution shallow seismic data acquisitiontechnique for surveying of urban active faults[J].Seismology and Geology,24(4):524—531(in Chinese).
刘保金.1996.浅层地震勘探在岩溶调查中的应用[J].物探与化探,20(6):474—477.LIU Bao-jin.1996.The application of shallow seismic exploration to karst investigation[J].Geophysical and Geo-chemical Exploration,20(6):474—477(in Chinese).
潘纪顺,刘保金,朱金芳,等.2002.城市活断层高分辨率地震勘探震源对比试验研究[J].地震地质,24(4):533—539.PAN Ji-shun,LIU Bao-jin,ZHU Jin-fang,et al.2002.Comparative experiment on seismic sources in high-resolutionseismic sounding[J].Seismology and Geology,24(4):533—539(in Chinese).
R E谢里夫,L W吉尔达特.1999.勘探地震学[M].北京:石油工业出版社.581—582.Sheriff R E,Gardner L W.1999.Exploration Seismology[M].Petroleum Industry Press,Beijing.581—582(in Chi-nese).
王庆海,徐明才.1991.抗干扰高分辨率浅层地震勘探[M].北京:地质出版社.168—169.WANG Qing-hai,XU Ming-cai.1991.Anti-disturbance High Resolution Shallow Seismic Exploration[M].GeologicalPublishing House,Beijing.168—169(in Chinese).
王振东.1988.浅层地震勘探技术[M].北京:地质出版社.135—138.WANG Zhen-dong.1988.Applied Technology of Shallows Seismic Prospecting[M].Geological Publishing House,Beijing.135—138(in Chinese).
徐朝繁,张先康,朱金芳,等.2002.复杂介质结构中折射界面的哈格多恩原理波前成像[J].地震地质,24(4):542—547.XU Zhao-fang,ZHANG Xian-kang,ZHU Jin-fang,et al.2002.Refractor imaging in complex structures by using Hage-doon wavefront reconstruction principle[J].Seismology and Geology,24(4):542—547(in Chinese).
渥·伊尔马滋.1994.地震数据处理[M].北京:石油工业出版社.125—132.Yilmaz O.1994.Seismic Data Processing[M].Petroleum Industry Press,Beijing.125—132(in Chinese).
刘保金.1996.浅层地震勘探在岩溶调查中的应用[J].物探与化探,20(6):474—477.LIU Bao-jin.1996.The application of shallow seismic exploration to karst investigation[J].Geophysical and Geo-chemical Exploration,20(6):474—477(in Chinese).
潘纪顺,刘保金,朱金芳,等.2002.城市活断层高分辨率地震勘探震源对比试验研究[J].地震地质,24(4):533—539.PAN Ji-shun,LIU Bao-jin,ZHU Jin-fang,et al.2002.Comparative experiment on seismic sources in high-resolutionseismic sounding[J].Seismology and Geology,24(4):533—539(in Chinese).
R E谢里夫,L W吉尔达特.1999.勘探地震学[M].北京:石油工业出版社.581—582.Sheriff R E,Gardner L W.1999.Exploration Seismology[M].Petroleum Industry Press,Beijing.581—582(in Chi-nese).
王庆海,徐明才.1991.抗干扰高分辨率浅层地震勘探[M].北京:地质出版社.168—169.WANG Qing-hai,XU Ming-cai.1991.Anti-disturbance High Resolution Shallow Seismic Exploration[M].GeologicalPublishing House,Beijing.168—169(in Chinese).
王振东.1988.浅层地震勘探技术[M].北京:地质出版社.135—138.WANG Zhen-dong.1988.Applied Technology of Shallows Seismic Prospecting[M].Geological Publishing House,Beijing.135—138(in Chinese).
徐朝繁,张先康,朱金芳,等.2002.复杂介质结构中折射界面的哈格多恩原理波前成像[J].地震地质,24(4):542—547.XU Zhao-fang,ZHANG Xian-kang,ZHU Jin-fang,et al.2002.Refractor imaging in complex structures by using Hage-doon wavefront reconstruction principle[J].Seismology and Geology,24(4):542—547(in Chinese).
渥·伊尔马滋.1994.地震数据处理[M].北京:石油工业出版社.125—132.Yilmaz O.1994.Seismic Data Processing[M].Petroleum Industry Press,Beijing.125—132(in Chinese).
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