Detection of concrete dam leakage using an integrated geophysical technique based on flow-field fitting method
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Release time:2020-08-08 Impact Factor:1.646 DOI number:10.1016/j.jappgeo.2017.03.013 Affiliation of Author(s):School of Geosciences and Info-Physics, Central South University, Changsha 410083, China Teaching and Research Group:Applied Geophysics Journal:Journal of Applied Geophysics Place of Publication:NETHERLANDS Key Words:Concrete dam；Leakage detection Flow-field fitting method； Resistivity logging method；Limitations and complements to flow-field fitting method Abstract:An integrated geophysical investigation was performed at S dam located at Dadu basin in China to assess the condition of the dam curtain. The key methodology of the integrated technique used was flow-field fitting method, which allowed identification of the hydraulic connections between the dam foundation and surface water sources (upstream and downstream), and location of the anomalous leakage outlets in the dam foundation. Limitations of the flow-field fitting method were complemented with resistivity logging to identify the internal erosion which had not yet developed into seepage pathways. The results of the flow-field fitting method and resistivity logging were consistent when compared with data provided by seismic tomography, borehole television, water injection test, and rock quality designation. Co-author:冯德山, [22] Dai Qianwei, Lin Fangpeng*, Wang Xiaoping, Feng Deshan, Bayless R C, Wang Xiaoping First Author:戴前伟 Indexed by:Applied Research Correspondence Author:林芳鹏 Document Code:DOI：10.1016/j.jappgeo.2017.03.013 Discipline:地质资源与地质工程 Document Type:J Volume:140 Page Number:168–176 ISSN No.:0926-9851 Translation or Not:no Date of Publication:2017-05-01 Included Journals:SCI -
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