巷道超前探测散射成像处理技术

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英文篇名：THE STUDY OF SCATTERED TO TOPOGRAPHY METHOD IN TSP 中文刊名：物探与化探 英文刊名：Geophysical and Geochemical Exploration 作者：金红娣 ; 潘冬明 ; 杨光 英文作者：JIN Hong-di ; PAN Dong-ming ; YANG Guang(The School of Resource and Earth Science CUMT ; Xuzhou 221116 ; China) 中文关键词：TSP ; 散射成像 ; 克希霍夫叠前时间偏移 ; 等效偏移距偏移 英文关键词：TSP ; scattered topography ; equivalent offset ; pre-stacked Kirchhoff time migration ; EMO migration 出版日期：2012-12-15 机构：中国矿业大学资源与地球科学学院; 年：2012 期：06 出版单位：物探与化探

摘要

国内外在隧道施工过程中已开始应用反射波法超前探测前方小构造,如断层、陷落柱。由于前方的断层面、陷落柱界面起伏不平,所以接收到的反射波能量较弱,难以精确成像,而基于惠更斯原理的散射成像方法能充分利用地震信号的全波场信息,具有较好的偏移成像效果,散射成像为巷道超前探测提供了一种可行的成像方法。笔者通过建立巷道超前探测模型,分析了散射成像处理技术的效果,验证了散射成像方法应用于巷道超前探测的可行性。
At home and abroad,during the process of the channel tunnel construction,TSP has been used to detect small structures such as fault,collapse column.Because the fault plane and collapse column interface is undulating,the received energy of the reflected wave is weak,therefore it is difficult to image ahead of the tunnel.The scattered topography method based on Huygens-Fresnel principle can take full advantage of the information of the full wave field seismic signals.Scattered wave offers a new image method for TSP due to the good migration effect.In this particle,Building exploring tunnel model to study the effect of scattered topography,and prove the feasibility of the scattered topography used in the TSP.

引文

[1]Süleyman Dalgi.Tunneling in fault zones,Tuzla tunnnel,Turkey[J].Tunnelling and Underground Space Technology,2003,18(5):453-465.
    [2]周黎明,尹健民,侯炳绅,等.弹性波反射法在地质超前预报中的应用分析[J].长江科学学院院报,2008,25(1).
    [3]勾丽敏.散射成像处理技术研究[D].北京:中国地质大学,2007.
    [4]Ottolini R A.Migration of reflection seismic data in anglemidpointcoordinates[D].Stanford:Standford Univ,1982.
    [5]Claerbout J F.Imaging the Earth's interior[M].London:Blackwell Scientfic Publication,1984.