| 聚焦电流法隧道超前探测有限元模拟分析 |
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| 引用本文： | 杨庭伟,彭蓉.聚焦电流法隧道超前探测有限元模拟分析[J].西部交通科技,2012(7):85-90,94. |
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| 作者姓名： | 杨庭伟 彭蓉 |
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| 作者单位： | 广西交通科学研究院,广西南宁,530007 |
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| 摘 要： | 文章结合聚焦电流法隧道超前探测原理,采用有限单元异常电位法对聚焦电流法隧道超前探测的电场分布进行了计算分析,并通过数值模拟,探讨了不同地电条件下聚焦超前探测的异常特征。结果表明,该方法能直观、明显的反映出掌子面前方不良地质体的位置、形态,避免隧道内金属干扰物对探测结果的影响。
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| 关 键 词： | 聚焦电流法 隧道超前探测 有限元模拟分析 |
Finite Element Simulation Analysis of Focus Current Method in Tunnel Pilot Detection |
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| YANG Ting-wei,PENG Rong.Finite Element Simulation Analysis of Focus Current Method in Tunnel Pilot Detection[J].Western China Communication Science & Technology,2012(7):85-90,94. |
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| Authors: | YANG Ting-wei PENG Rong |
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| Institution: | (Guangxi Transportation Research Institute,Nanning,Guangxi,530007) |
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| Abstract: | Combined with the principles of focus current method in tunnel pilot detection,the article made the calculation analysis on the electric field distribution of focus current method in tunnel pilot detection by using the abnormal potential method of finite element,and through numerical simulation,it discussed the abnormal characteristics of focus pilot detection under different ground conditions.The results showed that this method can directly and obviously reflect the location and form of unfavorable geology ahead of tunnel face,avoiding the influ-ence on the detection results by metal interference in the tunnel. |
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| Keywords: | Focus current method Tunnel pilot detection Finite element analysis |
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