| 三维全空间坑道直流聚焦超前探测数值模拟 |
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| 引用本文： | 张力,阮百,刘海飞,邓小康.三维全空间坑道直流聚焦超前探测数值模拟[J].物探与化探,2011,35(3):419-422. |
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| 作者姓名： | 张力 阮百 刘海飞 邓小康 |
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| 作者单位： | 1. 中南大学,信息物理工程学院,湖南,长沙,410083
2. 桂林理工大学,地球科学学院,广西,桂林,541004 |
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| 基金项目： | 国家自然科学基金，广西科学基金 |
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| 摘 要： | 应用同性点源之间的相斥和聚焦原理,设计出适合坑道空间的垂直聚焦超前探测方案。利用有限元法结合高效行压缩存储格式及迭代求解算法,对三维坑道空间中聚焦超前探测效果进行模拟研究。数值计算结果与土槽物理模拟实验结果对比,说明设计方案达到l了聚焦超前探测的目地。通过坑道复杂模型计算,表明垂直聚焦观测方案能够有效探测前方和旁侧存在的不良地质体。
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| 关 键 词： | 坑道电阻率法 超前探测 有限元数值模拟 垂直聚焦 |
3D NUMERICAL MODELING OF ADVANCED EXPLORATION IN TUNNEL BASED ON THE DC FOCUS RESISTIVITY METHOD |
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| ZHANG Li,RUAN Bai-yao,LIU Hai-fei,Deng Xiao-keng.3D NUMERICAL MODELING OF ADVANCED EXPLORATION IN TUNNEL BASED ON THE DC FOCUS RESISTIVITY METHOD[J].Geophysical and Geochemical Exploration,2011,35(3):419-422. |
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| Authors: | ZHANG Li RUAN Bai-yao LIU Hai-fei Deng Xiao-keng |
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| Institution: | ZHANG Li1,RUAN Bai-yao2,LIU Hai-fei1,Deng Xiao-keng1(1.School of Info-Physics and Geometrics Engineering,Central South University,Changsha 410083,China,2.College of Earth Sciences,Guilin University of Technology,Guilin 541004,China) |
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| Abstract: | The tunnel DC resistivity advanced detection method is a method based on the theory of equipotential spherical surface that is excited by point source in full space.Due to the existence of a considerable impact from tunnel and detection environment when the measurement is performed at the rear of the heading face,difficulty in data interpretation is largely increased.On the basis of vertical ground resistivity sounding and side DC logging technology,the authors proposed a vertical focused advanced detection... |
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| Keywords: | tunnel resistivity method advanced detection finite-element numerical modeling vertical focus |
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