地震地质 ›› 2006, Vol. 28 ›› Issue (4): 646-654.

• 专题综述 • 上一篇    下一篇

城市活断层地震勘探的最佳组合方法与应用研究

方盛明1, 张先康1, 刘保金1, 段永红1, 徐锡伟2, 张永超1   

  1. 1. 中国地震局地球物理勘探中心, 郑州, 450002;
    2. 中国地震局地质研究所, 北京, 100029
  • 收稿日期:2006-09-17 修回日期:2006-11-11 出版日期:2006-12-21 发布日期:2009-08-27
  • 作者简介:方盛明,男,1953年生,1993年毕业于中国地质大学(北京)应用地球物理专业,获得硕士学位,研究员,现主要从事地球物理探测与地球动力学方面的研究工作,电话:0371-63856493,E-mail:smfang@public2.zz.ha.cn.
  • 基金资助:
    国家发展与改革委员会发改投资“城市活断层试验探测”项目(20041138)资助

THE BEST COMBINATION METHODS AND APPLIED RESEARCH OF SEISMIC PROSPECTING FOR ACTIVE FAULTS IN URBAN AREA

FANG Sheng-ming1, ZHANG Xian-kang1, LIU Bao-jin1, DUAN Yong-hong1, XU Xi-wei2, ZHANG Yong-chao1   

  1. 1. Geophysical Exploration Center, China Earthquake Administration, Zhengzhou 450002, China;
    2. Institute of Geology, China Earthquake Administration, Beijing 100029, China
  • Received:2006-09-17 Revised:2006-11-11 Online:2006-12-21 Published:2009-08-27

摘要: 根据近年来在全国开展的大城市活断层地震探测实践,在简要介绍各种地震勘探方法的基本原理和工作方法的基础上,着重分析了不同地震勘探方法的适用范围、获得的主要成果和所解决的主要问题.讨论了现阶段用地震勘探获取地壳结构和对不同深度断层定位的最佳组合方法,即对于有沉积覆盖的隐伏数百米深度至地表的断层,可用浅层地震勘探对其进行追踪,基底(埋深数公里)以上断层可采用高分辨地震折射探测;对于地壳中、深断裂应用反射地震勘探和深地震宽角反射/折射联合探测方法;还可以进一步采用三维深地震测深方法获得城市下方的三维结构和构造信息.采用这样的组合探测方法能够较好地获得断层在不同深度的产状与展布以及由深至浅完整的分布图像,并给出了应用实例.

关键词: 地震勘探, 最佳组合, 应用实例

Abstract: This paper introduced the basic principles of various seismic prospecting methods and working methods briefly according to the nationwide practices of seismic prospecting for active faults beneath big cities in recent years.Furthermore,it mainly analyzed the available range of different seismic prospecting methods,main achievements and solutions,and discussed the best combination of seismic exploration methods for detecting crustal structure and locating the faults used in the present stage,that is,to trace the faults which are at the depths of hundred meters underground using shallow seismic investigation,to detect the basement faults which are above basement(at depth of kilo~meters)using high resolution refraction sounding,and the deep crustal faults using combined seismic prospecting method of reflection seismic sounding and wide-angle reflection/refraction sounding,and furthermore,to adopt 3-D deep seismic sounding method to get 3-D velocity structure beneath city area.Thus,we can get information about fault attitude and distribution at different depths and a complete image of fault from shallow part to deep part using the combined seismic exploration method.Some application examples are presented in the article.

Key words: seismic exploration, best combination, examples of application

中图分类号: