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《Progress In Geophysics》 2003-03
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Feature analysis on radar pictures for detecting hidden danger of floodgate base

DAI Chengxiang,WANG Shien (Guangdong Research Institute of Water Resources and Hydropower,Guangzhou 510610, China)  
Hidden danger is seriously threatened the security of floodgate and the safe of the life and property of the people. One of which is made hole of hollow in a base of floodgate where can be lead to piping in flood, as has been work for a time, the base layer is produced strong permeate area and hollow area under the high/low water level difference. It be detected the degree of scouring, denudation, the position of hollow area, growth level and scale by the GPR technique, so a control measure and properly reinforce there is adopted as early as possible, the GPR technique is a effective method of detecting hidden danger in a base of floodgate, the key to explain radar data is the feature analysis of radar picture.
【Fund】: 广东省水利厅项目粤水计[2002]49号资助.
【CateGory Index】: TV66
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