PDF(3014 KB)
利用面波横向高分辨技术探测低速地质异常体
孙旭, 张学强, 刘博政
PDF(3014 KB)
PDF(3014 KB)
利用面波横向高分辨技术探测低速地质异常体
Detection of Low Velocity Geological Anomalous Body Using Surface Wave Transverse High Resolution Technology
为了能在狭窄空间提高面波的横向分辨能力，利用线性拉冬变换提取地震波记录中的面波，采用相邻两道相位差法计算面波的频散曲线，再用半波长解释方法得到拟二维面波相速度剖面.在随机介质中建立低速异常体模型，在一个短排列的情况下，通过对波动方程有限差分数值模拟的地震波记录进行数据处理，在速度剖面中低速异常体区域明显，位置准确.将此技术应用到郑州市地下防空洞的探测以及黄河大堤渗漏的探测中，寻找到了防空洞的位置及渗水通道.该技术具有很高的横向分辨率，适用于城市狭窄空间地面无损探测.
In order to improve surface wave in the narrow space of the lateral resolving power, a method is proposed to the two-dimensional surface wave phase velocity profile, firstly using linear Radon transform to extract the surface waves in seismic records, then using two adjacent phase difference method to calculate the surface wave dispersion curves, and finally explaining it with half wave. A model of abnormal body at low speed is established in random medium, in the case of a short order. Through data processing of seismic wave records from finite difference numerical simulation of wave equation, it is found that the area of low-velocity abnormal body in velocity profile is obvious and its location is accurate. This technique has been applied to the detection of underground air-raid shelters in Zhengzhou City and the detection of seepage in the Yellow River levee, and the positions of air-raid shelters and seepage channels have been found. This technique has high lateral resolution and is suitable for non-destructive ground detection in urban narrow space.
面波 / 相位差 / 线性拉冬变换 / 低速异常体 / 地震 / 地质工程.
surface wave / phase difference / linear Radon transform / low velocity anomalous body / earthquakes / geological engineering
P64
|
Al-Hunaidi, M. O., 1994. Analysis of Dispersed Multi-Mode Signals of the SASW Method Using the Multiple Filter/Crosscorrelation Technique. Soil Dynamics and Earthquake Engineering, 13(1): 13-24. https://doi.org/10.1016/0267-7261(94)90037-X
|
|
Chen, J., Xiong, Z.Q., Zhang, D.Z., et al., 2018. The Extract Dispersion Curves of Rayleigh Surface Wave Based on Multiple Filtering Method. Chinese Journal of Engineering Geophysics, 15(4): 411-417 (in Chinese with English abstract).
|
|
Chen, Q., Xiong, Z. Q., Zhang, D. Z., 2021. Studly of Rayleigh Wave Dispersion Curves Based on the Combination of Phase Difference Method and Multiple Filtering Method. Chinese Journal of Engineering Geophysics, 18(6): 856-866 (in Chinese with English abstract).
|
|
Huang, J. Z., Zhang, X. Q., Guan, X. P., 1995. Application of RSM-16H Dynamic Measuring Instrument in Soil and Rock Mass Detection by Surface Wave Method. Rock and Soil Mechanics, 16(2): 83-89 (in Chinese with English abstract).
|
|
Karray, M., Lefebvre, G., 2009. Techniques for Mode Separation in Rayleigh Wave Testing. Soil Dynamics and Earthquake Engineering, 29(4): 607-619. https://doi.org/10.1016/j.soildyn.2008.07.005
|
|
Ke, L.M., Li, H., Feng, S.K., et al., 2020. Preliminary Study on Compactness Detection of Rock-Filled Dam Based on High-Density Surface Wave Technology. Journal of China Institute of Water Resources and Hydropower Research, 18(5): 337-346 (in Chinese with English abstract).
|
|
Lei, X.Y., Li, Z.W., Huang, Y., 2008. Application of Stable Surface Wave to the Exploration of Soft Soil. Geotechnical Investigation & Surveying, 36(3): 45-48 (in Chinese with English abstract).
|
|
Li, Q. L., Zhang, H., Lei, X. D., et al., 2022. Analysis of Internal Structure of Slope by Using Multi-Channel Transient Surface Wave Exploration and Microtremor Survey. Geophysical and Geochemical Exploration, 46(1) :258-267 (in Chinese with English abstract).
|
|
Liu, X.F., Jiang, W.L., Wang, X.M., et al., 2020. The Applied Research on the Surface Wave Exploration under Complex Geological Conditions. Geophysical and Geochemical Exploration, 44(2): 449-455 (in Chinese with English abstract).
|
|
Liu, X.P., Yin, K.L., Xiao, C. G., et al., 2024.Meteorological Early Warning of Landslide based on I-D-R Threshold Model. Earth Science, 49(3): 1039-1051 (in Chinese with English abstract).
|
|
Liu, Y.Z., Wang, Z.D., 1996. Data Acquisition and Processing System of Transient Surface Wave Method and Its Application Example. Geophysical and Geochemical Exploration, 20(1): 28-34 (in Chinese with English abstract).
|
|
Ma, J.Q., Li, Q.C., Fan, J.S., et al., 2010. Rayleigh Wave Dispersion Analysis Based on S Transform. Journal of Earth Sciences and Environment, 32(3): 319-323 (in Chinese with English abstract).
|
|
Stockwell, R. G., Mansinha, L., Lowe, R. P., 1996. Localization of the Complex Spectrum: The S Transform. IEEE Transactions on Signal Processing, 44(4): 998-1001. https://doi.org/10.1109/78.492555
|
|
Thorson, J. R., Claerbout, J. F., 1985. Velocity-Stack and Slant-Stack Stochastic Inversion. Geophysics, 50(12): 2727-2741. https://doi.org/10.1190/1.1441893
|
|
Tian, B.Q., Ding, Z.F., 2021. Review and Prospect Prediction for Microtremor Survey Method. Progress in Geophysics, 36(3): 1306-1316 (in Chinese with English abstract).
|
|
Wang, X.L., 2020. Application of 2D Transient Surface Wave in the Detection of Hidden Karst at the Bottom of the Tunnel. High Speed Railway Technology, 11(3): 46-50 (in Chinese with English abstract).
|
|
Xu, H. Q., 2009. Study on Dispersion Characteristics of Rayleigh Surface Wave and Its Application (Dissertation). Chengdu Univerisity of Technology, Chengdu (in Chinese with English abstract).
|
|
Yang, Z., Li, Y., Zhao, F., et al., 2022. Fine Detection of Shallow Coal Seam Mined-out Area by Multichannel Analysis of Surface Waves. Journal of Mining Science and Technology, 7(1): 113-122 (in Chinese with English abstract).
|
|
Yin, X.F., Xu, H.R., Xia, J.H., et al., 2018. A Travel-Time Tomography Method for Improving Horizontal Resolution of High-Frequency Surface-Wave Exploration. Chinese Journal of Geophysics, 61(6): 2380-2395 (in Chinese with English abstract).
|
|
Yu, D. K., Wei, L., 2020. Research on the Application of Surface Wave Technology in Foundation Reinforcement. Exploration Project in the West, 8:21-25 (in Chinese with English abstract).
|
|
Zhang, Y.P., Rong, X., Ge, L.J., et al., 2021. Application of Surface Wave Method in the Investigation of Lanxi Ancient City Wall. Shaanxi Water Resources, (5): 14-17 (in Chinese with English abstract).
|
/
| 〈 |
|
〉 |
AI Summary
