隧道全空间瞬变电磁响应的物理模拟
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摘要
瞬变电磁法已经在隧道超前探水应用中取得了一些成果,但对隧道全空间瞬变电磁效应机理的研究仍然是一个有待深入研究的领域。为此,应用物理模型试验方法对其开展研究,确定物理相似准则,对模型试验的相似材料进行选择;采用自制实验仪器,研究了盐水电导率和盐水浓度与温度的关系;对发射线圈和接收线圈进行了设计和改造,建立了全空间瞬变电磁模型试验平台;并进行了多组试验,试验结果验证了数值模拟结果的正确性。
Though some achievements concerning the transient electromagnetic method for advance water probing in tunnels have been made,further study is needed regarding the transient electromagnetic effect mechanism on a tunnel as a whole.By means of a physical model test,the physical similarity criteria were determined and the similar materials were selected.The relationships between brine conductivity,concentration,and temperature were studied using a self-made experimental apparatus.The transmitter and receiver coils were designed and transformed.The model test platform with whole space transient electromagnetic methods was set up,and many groups of tests were conducted that verified the correctness of the numerical simulation results.
Though some achievements concerning the transient electromagnetic method for advance water probing in tunnels have been made,further study is needed regarding the transient electromagnetic effect mechanism on a tunnel as a whole.By means of a physical model test,the physical similarity criteria were determined and the similar materials were selected.The relationships between brine conductivity,concentration,and temperature were studied using a self-made experimental apparatus.The transmitter and receiver coils were designed and transformed.The model test platform with whole space transient electromagnetic methods was set up,and many groups of tests were conducted that verified the correctness of the numerical simulation results.
引文
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[11]张华,曹军,孙海.瞬变电磁法多匝重叠小回线装置实验研究[J].地震地质,2010,32(1):90—97 Zhang Hua,Cao Jun,Sun Hai.The Analysis and Research of Transient Electromagnetic Configuration of Small Multi-turn Coincident Loop[J].Seismology and Geology,2010,32(1):90-97
[12]嵇艳鞠.浅层高分辨率全程瞬变电磁系统中全程二次场提取技术研究[D].长春:吉林大学,博士学位论文,2004 Ji Yanju.All-time Secondary Electromagnetic Field Extraction in High Resolution Transient Electromagnetic System for Subsurface Imaging[D].Changchun:Jilin University,Doctor Degree Dissertation,2004
[2]Ogilvy R D.瞬变电磁法重叠回线技术的研究[J].物探与化探译丛,1985,(增):40-43 Ogilvy R D.Study on Multi-turn Coincident Loop with Transient Electromagnetic[J].Translations Collection of Geophysical and Geochemical Exploration,1985,(Sup):40-43
[3]Duckworth K.奈特霍克试验场固定回线电磁观测系统实验结果与比例模型结果的比较[J].物探与化探译丛,1992,(增):49—53 Duckworth K.Compared Result of Scaled Model with Resull of Test in Nikehoke Fields by Multi-turn Coincident Loop Instrument with Transient Electromagnetic[J],Translations Collection of Geophysical and Geochemical Exploration,1992.(Sup):49-53
[4]全红娟.多孔径瞬变电磁辆射场的实验研究[D].西安:长安大学,硕士学位论文,2003 Quan Hongjuan.Multi-aperture Radiation Characteristic Research on Transient Electromagnetic Field[D].Xi'an:Chang'an University, Master Degree Dissertation,2003
[5]姜志海.岳建华.刘树才.多匝重叠小回线装置的矿井瞬变电磁观测系统[J].煤炭学报,2007.32(11):1152-1156 Jiang Zhihai,Yue Jianhua.Liu Shucai.Mine Transient Electromagnetic Observation System of Small Multi-turn Coincident Configuration [J].Journal of China Coal Society,2007,32(11):1152-1156
[6]李慧.海洋瞬变电磁响应理论计算及浅海底瞬变电磁探测技术研究[D].长春:吉林大学,博士学位论文.2007 Li Hui.Theoretical Calculation of Marine Transient Electromagnetic Response and Research of Shallow Sea-floor Detection Technology [D].Changchun:Jilin University,Doctor Degree Dissertation,2007
[7]蒋邦远.实用近区磁源瞬变电磁法勘探[M].北京:地质出版社,1998 Jiang Bangyuan.Applied Near-zone Magnetic Source Transient Electromagnetic Exploration[M].Beijing:Geological Publishing House,1998
[8]罗娜.阿尔奇公式数值分析及其意义[J].石油学报,2007,28(1):111—114 Luo Na.Numerical Analysis of Archie Formulae and Its Meanings[J].Acta Petrolei Sinica,2007,28(1):111-114
[9]牛之琏.时间域电磁法原理[M].长沙:中南工业大学出版社,1992 Niu Zhilian.The Principle of Time-domain Electromagnetic Methods[M].Changsha:Central South University of Technology Press, 1992
[10]Kamenetsky F,Oelsner C.Distortions of EM Transients in Coincident Loops at Short Time Delays[J].Geophysical Prospecting,2000, 48(3):983-993
[11]张华,曹军,孙海.瞬变电磁法多匝重叠小回线装置实验研究[J].地震地质,2010,32(1):90—97 Zhang Hua,Cao Jun,Sun Hai.The Analysis and Research of Transient Electromagnetic Configuration of Small Multi-turn Coincident Loop[J].Seismology and Geology,2010,32(1):90-97
[12]嵇艳鞠.浅层高分辨率全程瞬变电磁系统中全程二次场提取技术研究[D].长春:吉林大学,博士学位论文,2004 Ji Yanju.All-time Secondary Electromagnetic Field Extraction in High Resolution Transient Electromagnetic System for Subsurface Imaging[D].Changchun:Jilin University,Doctor Degree Dissertation,2004
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