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| 聚焦电流法隧道超前预报电极布置研究 | |
| 引用本文： | 周丽,吴鸣. 聚焦电流法隧道超前预报电极布置研究[J]. 上饶师范学院学报, 2010, 30(6): 55-59. DOI: 10.3969/j.issn.1004-2237.2010.06.011 |
| 作者姓名： | 周丽 吴鸣 |
| 作者单位： | [1]嘉兴学院机电工程学院,浙江嘉兴314001 [2]浙江省地质调查院,浙江杭州311203 |
| 摘 要： | 提出了两种聚焦电流电极布置方式（只用屏蔽电极探测的A-M-A1装置和在屏蔽电极中间再加一电极同时供电的A-M-A0-M1-A1装置）进行隧道超前预报探测。通过导电纸实验证明当掌子面不断接近异常体时观测电位不断下降,聚焦电流进行超前预报是可行的;A-M-A0-M1-A1装置比A-M-A1装置效果较好;超前探测距离与异常体电极距有关。 |
| 关 键 词： | 聚焦电流 超前预报 电极布置 导电纸 |
The Research of the Electrode on Focused-electrical Advanced Detection of Tunnels |
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| ZHOU Li,WU Ming. The Research of the Electrode on Focused-electrical Advanced Detection of Tunnels[J]. Journal of Shangrao Normal College, 2010, 30(6): 55-59. DOI: 10.3969/j.issn.1004-2237.2010.06.011 | |
| Authors: | ZHOU Li WU Ming |
| Affiliation: | 1.Mechanical and Electrical Engineering College,Jiaxing University,Jiaxing Zhejiang 314001,China;2.Zhejiang Institute Of Geological Survey,Hangzhou Zhejiang 311202,China) |
| Abstract: | Two focused current electric layout（A-M-A1 installation is detected by the shield electrode and A-M-A0-M1-A1 installation added to another electrode in the middle of the shield electrode） is proposed for advanced forecast in tunnels.The conductive paper test show that observed potential drops down when tunnel face approaches to anomaly constantly.Meanwhile,forecasting can be carried by focused current.The effect of A-M-A0-M1-A1 installation is better than A-M-A1 installation.Forecast distance is determined by the anomaly and the electrode. |
| Keywords: | Focused-electric advanced detection electrode layout Conductive paper |
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