摘要
针对传统流场拟合法要求渗漏点与周围介质存在明显电性差异的缺点,改用溶质场去拟合水流场。用自行设计的模型槽开展了室内模型试验研究,模拟了有渗漏通道入口与无渗漏通道入口两种情况,通过在模拟坝体迎水面布置电导率传感器,绘制出两种情况下迎水面上的电导率等值线图。对两种情况下等值线图进行对比分析发现,渗漏通道附近的电导率明显偏大,并且偏大区域的中心位置与实际渗漏通道入口的中心位置基本一致。试验结果表明,利用溶质场进行水库渗漏通道入口的探测是可行的,并且具有简单、快捷等优点。
In view of the shortcomings of the traditional flow field fitting method,which requires obvious electrical difference between the leakage point and the surrounding medium,the solute field was used to fit the flow field.The laboratory model test was carried out with a self⁃designed model tank.The two cases of inlet with leakage passageentrance and without leakage passageentrance were simulated.By arranging conductivity probe on the upstream surface of the simulated dam body,the contour map of conductivity value on the upstream surface of the two cases was drawn.By comparing and analyzing the contour map of the two cases,it was found that the conductivity value near the leakage passageentrance would be significantly larger.The central position of the larger area is basically consistent with the actual entrance of the leakage passage.The test results show that it is feasible to use solute field to detect the entrance of reservoir leakage passage,and it has the advantages of simplicity and rapidity.
作者
陈亮
张林生
颜书法
CHEN Liang;ZHANG Linsheng;YAN Shufa(Geotechnical Research Institute,Hohai University,Nanjing 210098,China;Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering,Hohai University,Nanjing 210098,China)
出处
《人民黄河》
CAS
北大核心
2022年第1期112-115,共4页
Yellow River
基金
国家自然科学基金资助项目(51778210)。
关键词
水库渗漏
溶质场
探测
电导率
reservoir leakage
solute field
detection
conductivity
