Citation: | DENG X H, FU Y L. Application of cross-hole electromagnetic wave tomography in three dimensional spatial distribution of Karst[J]. CT Theory and Applications, 2022, 31(1): 13-22. DOI: 10.15953/j.1004-4140.2022.31.01.02. (in Chinese). |
Karst development in limestone areas holds great potential hazards to the urban construction, Using the conventional way of drilling, it is difficult to fully identify the characteristics and scale of underground Karst development in urban Karst exploration while cross-hole electromagnetic wave tomography can find out the state of development and extension of underground Karst in the work area. The forward electromagnetic wave tomography which is performed on the boreholes indicates the accuracy and feasibility of electromagnetic tomography for Karst investigation. Based on the examples of Karst exploration in metro rails, the electromagnetic wave tomography is applied, thus the two-dimensional absorption coefficient and the three-dimensional absorption coefficient images are retrieved respectively. By obtaining the absorption coefficient slices of different depths and horizontal spaces, the 3D spatial form of the underground Karst cave can be reconstructed, and detailed data for Karst exploration in construction of major projects can be provided.
[1] |
冯锐, 陈家庚, 郭强绪. 电磁波井间层析技术在城建工程中的应用[J]. 地球物理学报, 1992,35(S): 348−357.
FENG R, CHENG J G, GUO Q X. Application of tomographic technology between boreholes in geotechnical survey of urban construction[J]. Chinese Journal of Geophysics, 1992, 35(S): 348−357. (in Chinese).
|
[2] |
胡熠, 谢强, 赵文, 等. 电磁波 CT 法岩溶路基注浆质量检测标准[J]. 西南交通大学学报, 2013,48(3): 441−447. doi: 10.3969/j.issn.0258-2724.2013.03.008
HU Y, XIE Q, ZHAO W, et al. Electromagnetic wave CT detection standard of Karst roadbed routing[J]. Journal of Southwest Jiaotong University, 2013, 48(3): 441−447. (in Chinese). doi: 10.3969/j.issn.0258-2724.2013.03.008
|
[3] |
蒋忠信, 王衡. 南昆铁路岩溶洞穴预报技术[J]. 水文地质工程地质, 2002,29(2): 69−73. doi: 10.3969/j.issn.1000-3665.2002.02.020
JIANG Z X, WANG H. Technology of forecasting to Karst cave in construction of nanning-kunming railway[J]. Hydrogeology & Engineering Geology, 2002, 29(2): 69−73. (in Chinese). doi: 10.3969/j.issn.1000-3665.2002.02.020
|
[4] |
李永涛, 陶喜林, 余建河, 等. 井间电磁波CT技术在长江大堤岩溶探测中的应用[J]. CT理论与应用研究, 2009,18(1): 55−62.
LI Y T, TAO X L, YU J H, et al. Application of cross-borehole electromagnetic computerized tomography in Karst detection along yangtze river levee[J]. CT Theory and Applications, 2009, 18(1): 55−62. (in Chinese).
|
[5] |
郭贵安, 魏柏林. 井间电磁波CT技术在溶洞探测中的应用[J]. 华南地震, 1999,19(4): 28−34. doi: 10.3969/j.issn.1001-8662.1999.04.005
GUO G A, WEI B L. Prospecting corroded cavities using cross-section electromagnetic tomographic technique between boreholes[J]. South China Journal of Seismology, 1999, 19(4): 28−34. (in Chinese). doi: 10.3969/j.issn.1001-8662.1999.04.005
|
[6] |
孙茂锐, 王双六. 电磁波CT二维与三维成像应用[J]. 物探与化探, 2015,39(3): 641−645.
SUN M R, WANG S L. The application of the electromagnetic wave CT of the 2D and 3D imaging[J]. Geophysical and Geochemical Exploration, 2015, 39(3): 641−645. (in Chinese).
|
[7] |
张旻舳, 师学明. 电磁波层析成像技术进展[J]. 工程地球物理学报, 2009,6(4): 418−425.
ZHANG M Z, SHI X M. Review of electromagnetic tomography technique[J]. Chinese Journal of Engineering Geophysics, 2009, 6(4): 418−425. (in Chinese).
|
[8] |
郭印, 彭涛, 李天祺, 等. 井间电磁波CT技术在建筑基底溶洞探测中的应用[J]. 工程勘察, 2009,37(8): 92−95.
GUO Y, PENG T, LI T Q, et al. Application of cross-well electromagnetic CT technology in the detection of cave in the foundation of the building[J]. Engineering Investigation, 2009, 37(8): 92−95. (in Chinese).
|
[9] |
黎华清, 徐远光, 甘伏平, 等. 孔间电磁波CT法在左江电站火成岩坝基风化结构评价中的应用[J]. 岩土力学, 2010,31(S1): 430−434.
LI H Q, XU Y G, GAN F P, et al. Application of the electromagnetic wave CT method in the evaluation of the structure of igneous rock dam foundation in Zuojiang hydropower station[J]. Geotechnical Mechanics, 2010, 31(S1): 430−434. (in Chinese).
|
[10] |
何禹, 李永涛, 朱亚军. 钻孔电磁波CT技术在深部岩溶勘探中的应用[J]. 工程地球物理学报, 2010,7(4): 451−455. doi: 10.3969/j.issn.1672-7940.2010.04.010
HE Y, LI Y T, ZHU Y J. Application of drilling electromagnetic CT to deep cavern and fracture prospecting[J]. Chinese Journal of Engineering Geophysics, 2010, 7(4): 451−455. (in Chinese). doi: 10.3969/j.issn.1672-7940.2010.04.010
|
[11] |
夏金儒, 陈石羡. 电磁波CT成像技术在防水工程场地勘察中的应用[J]. 资源环境与工程, 2007,21(S0): 101−103.
XIA J R, CHEN S X. CT image by electromagnetic wave in water prevention projects[J]. Resources Environment & Engineering, 2007, 21(S0): 101−103. (in Chinese).
|
[12] |
岳崇旺, 王祝文, 徐加益. 电磁波层析技术在工程地质中的应用[J]. 物探与化探, 2008,32(2): 216−219.
YUE C W, WANG Z W, XU J Y. The application of the electromagnetic tomography technique to engineering geology[J]. Geophysical & Geochemical Exploration, 2008, 32(2): 216−219. (in Chinese).
|
[13] |
吴建平, 冯锐. 井间电磁波CT中的非块体分段反演算法[J]. CT理论与应用研究, 1993,2(3): 1−8.
WU J P, FENG R. Nobody inversion using data segments in cross-hole electromagnetic tomography[J]. CT Theory and Applications, 1993, 2(3): 1−8. (in Chinese).
|
[14] |
焦彦杰, 李华. 钻孔雷达电磁波特征与桥梁地基工程评价研究[J]. 物探化探计算技术, 2010,32(4): 397−401. doi: 10.3969/j.issn.1001-1749.2010.04.010
JIAO Y J, LI H. Electromagnetic wave characteristic of borehole radar and on bridge foundation engineering evaluation[J]. Computing Techniques for Geophysical and Geochemical Exploration, 2010, 32(4): 397−401. (in Chinese). doi: 10.3969/j.issn.1001-1749.2010.04.010
|
[15] |
宋文荣, 吴仪芳, 刘建达, 等. 电磁波层析成像技术(CT)在地基勘探中的应用[J]. 地震学报, 1994,34(2): 62−64.
SONG W R, WU Y F, LIU J D, et al. Application of electromagnetic wave computerized tomography (CT) in foundation exploration[J]. Journal of Seismology, 1994, 34(2): 62−64. (in Chinese).
|
[16] |
吴以仁, 邢凤桐. 钻孔电磁波法[M]. 北京: 地质出版社, 1982.
WU Y R, XING F T. The method of borehole electromagnetic wave[M]. Beijing: Geological Publishing House, 1982. (in Chinese).
|
[17] |
刘立振. 重建地下介质相对衰减的分布: 新的成像方法[J]. 地球物理学报, 1990,33(1): 98−105. doi: 10.3321/j.issn:0001-5733.1990.01.011
LIU L Z. Reconstruction of the distribution of relative attenuations in subsurface media: A new tomographic technique[J]. Chinese Journal of Geophysics, 1990, 33(1): 98−105. (in Chinese). doi: 10.3321/j.issn:0001-5733.1990.01.011
|
[18] |
刘海滨. 岩矿石吸收系数的算和测定方法[J]. 吉林地质, 1996,6(2): 82−86.
LIU H B. Absorption coefficient calculation and determination of the rock and ore stone[J]. Jilin Geology, 1996, 6(2): 82−86. (in Chinese).
|
[19] |
SHIMA H. Resistivity tomography: An approach to 2-dresistivity in-verse problems[C]//SEG Technical program Expanded Abstracts 1987. Louislana: Society of Exploration Geophysicists, 1987: 59-61.
|
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