水闸闸基隐患探测雷达图像特征分析
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摘要
水闸闸基隐患严重威胁水闸安全,闸基淘空是水闸较常见的隐患之一.闸底地基垫层在水闸上下游水位差的作用下,经一段时间的运行后,往往会形成强渗流层和淘空区,洪水到来时便产生管涌,危及水闸的安全运行和人民的生命财产安全.利用探地雷达技术可探测出闸基冲刷剥蚀程度、淘空区的位置、范围、发育程度及规模,便于及早采取防范措施,进行加固处理.探地雷达技术是水闸闸基隐患探测的有效手段,雷达图像的特征分析是雷达资料解释的关键,通过雷达图像的特征分析,可判译出闸基隐患的具体部位和类型.
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.
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.
引文
[1] 戴呈祥,江河水闸隐患探测[J].广东水利水电,2002(1):13～15.
[2] 王建民.刘财.杨宝俊.蒋连斌.地质雷达技术在巴彦查干地区地震勘探中的应用[J].地球物理学进展2002,17(4):745～752.
[2] 王建民.刘财.杨宝俊.蒋连斌.地质雷达技术在巴彦查干地区地震勘探中的应用[J].地球物理学进展2002,17(4):745～752.
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