Geological and underground pipeline detection was carried out in several urban metro exit areas in the loess area by using ground penetrating radar (GPR). The distribution of soil layer in the loess area was emphatically studied. The GPR images of PVC pipelines and metal pipelines in the loess area under the conditions of holes, seepage and soil collapse were analyzed, and the respective GPR scans of underground pipelines in the loess area were summarized. By describing the characteristics of the images, the authors summarized the general analysis methods and rules of applying GPR to detecting urban geological stratification and pipeline radar images in the loess area, and used the image laws of "black-white-black" and "white-black-white" to analyze the GPR images, which provides a good guidance for subsequent engineering construction.
Jia-Ming HAN,Xin ZHONG,Shuai JING, et al. The application of geological radar to urban geological pipeline detection in the loess area[J]. Geophysical and Geochemical Exploration,
2020, 44(6): 1476-1481.
Dai T, Li J. Rayleigh wave method to test the treatment effect of collapsible loess foundation of passenger dedicated line[J]. Geophysical and Geochemical Exploration, 2009,33(5):603-607.
Wang Y X, Shao S J, Han C L, et al. Applied research of sand well immersion test in collapsible loess[J]. Journal of Geotechnical Engineering, 2018,40(S1):159-164,7.
[3]
邓乐娟. 结构性黄土的本构模型[D]. 西安:长安大学, 2018.
[3]
Deng L J. Constitutive model of structural loess [D]. Xi'an: Chang’an University, 2018.
[4]
梁枥文. 城市小区复杂地下管线探测试验研究[D]. 兰州:西北大学, 2018.
[4]
Liang L W. Experimental study on detection of complex underground pipelines in urban districts[D]. Lanzhou: Northwest University, 2018.
Liu Z H, Liu M M, Zhou D, et al. Typical karst geology identification method based on ground penetrating radar attribute analysis[J]. Geotechnical Mechanics, 2019,40(8):1-9.
Qin T, Zhao Y H, Lin G C, et al. The application of GPR to underwater archaeological investigation of Shanglinhu Yue kiln relics[J]. Geophysical and Geochemical Exploration, 2018,42(3):624-630.
[7]
Catarina P, Frabcisco J A, Jorge M C, et al. Current uses of ground penetrating radar in groundwater-dependent ecosystems research[J]. Science of the Total Environment, 2017(595):868-885.
[8]
Yuan X, Yan S, Shun D, et al. Ground experiments of Chang’e-5 lunar regolith penetrating radar[J]. Advances in Space Research, 2019,63(10).
Wang J, Jiang Y F, Zhu N F, et al. Application of integrated pipeline detection technology in urban pipeline detection[J]. Surveying and Mapping Bulletin, 2015(S2):52-56.
Lu J B. Image recognition of jammers in geological radar detection[J]. Tunnel Construction, 2011,31(6):686-689.
[11]
Wallace W L, Xavier D, Peter A. A review of ground penetrating radar application in civil engineering: A 30-year journey from Locating and Testing to Imaging and Diagnosis[J]. NDT and E International, 2018(96):58-78.
[12]
郭小凤. 探地雷达应用技术及雷达图像处理方法研究[D]. 太原:中北大学, 2012.
[12]
Guo X F. Research on application technology of geological radar and radar image processing method[D]. Taiyuan: North University of China, 2012.
[13]
Olga L L T, Bart S. Ground penetrating radar for close in mine detection[M/OL]. IntechOpen: 2017-08-30.
Zhou C Y. Image analysis and engineering application of ground penetrating radar in tunnel lining detection[J]. Journal of Shandong University:Engineering Science, 2018,48(4):61-68.