| 洞室工程地震CT与VSP
联合检测方法及应用实例 |
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| 引用本文： | 刘永华,田宗勇,赵淑红,王玉贵,黄小军.洞室工程地震CT与VSP
联合检测方法及应用实例[J].延边大学理工学报,2005,0(3):55-58. |
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| 作者姓名： | 刘永华 田宗勇 赵淑红 王玉贵 黄小军 |
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| 作者单位： | 1.长安大学地质工程与测绘工程学院,陕西西安710054;2.水利部长江勘测技术研究所,湖北武汉430011 |
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| 摘 要： | 地震层析成像(CT)和垂直地震剖面(VSP)法一直作为两种完全分离的探测技术在勘探活动
中运用,而洞室工程地震CT与VSP联合检测方法则是充分利用VSP和CT数据采集方式的兼容性,
通过一体化观测系统参数设计和优化数据处理流程,将两种地震勘探手段融为一体而成为优化组合技
术下的高分辨工程物探方法。方法实验结果表明,地震CT与VSP联合检测方法在近地表岩土工程勘
查应用中几乎可以不增加野外工作费用,就能够同时获取地下洞室工程体施测区间内的地震CT数据
和关于洞室轴向剖面方向的逆向VSP数据体。
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| 关 键 词： | 洞室工程检测 VSP CT 一体化观测系统 初始速度模型 联合成像 三峡大坝 |
Methods and applications of joint detection with
cavity engineering seismic CT and VSP |
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| LIU Yong-hua,TIAN Zong-yong ,ZHAO Shu-hong,WANG Yu-gui,HUANG Xiao-jun.Methods and applications of joint detection with
cavity engineering seismic CT and VSP[J].Journal of Yanbian University (Natural Science),2005,0(3):55-58. |
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| Authors: | LIU Yong-hua TIAN Zong-yong ZHAO Shu-hong WANG Yu-gui HUANG Xiao-jun |
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| Affiliation: | 1. School of Geological Engineering and Surveying Engineering, Chang’ an University, Xi’ an 710054, China;
2.Yangtze River Institute of Exploration and Survey, Ministry of Water Resources, Wuhan 430011,China |
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| Abstract: | Up to now, the Seismic Computerized Tomography(CT)method and Vertical Seismic Profile(VSP)method are
two completely separated detection method used in exploration, but“ the method of joint detection with cavity engineering
seismic CT and VSP” may demonstrate the compatibility of VSP and CT data. Designing the process flow according to the
integral layout parameters, these two methods can be fused as one with high resolution adopting the strategy above with
practical examples, the seismic CT dataset of the subsurface cavity and reverse VSP dataset can be got in the axial profile di-
rection of the cave at the same time, and the exploration cost can not be in creased. The datasets such as multi-offset reverse
VSP gather can be developed at each receiving station and walk-away reverse VSP gather at each shot station. |
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| Keywords: | cavity engineering detection VSP CT unified recording geometry initial velocity model joint image ThreeGorges dam |
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