钻孔彩色电视成像技术在大坝渗漏探测中的应用

依据某大坝渗漏探测为案例,在水位观测、示踪剂试验等常规探测技术的基础上,首次采用钻孔彩色电视成像动态观察试验进行大坝渗漏探测。试验结果与示踪剂试验探测出大坝渗漏部位在平面上具有较强的统一性,不但复核了示踪剂的测试成果,同时查明了渗漏部位分布高程,估算了其渗流速度。通过施工检验说明了实验成果是准确合理的,表明钻孔彩色电视成像技术在大坝渗漏探测中具有一定的研究意义和工程意义。

Application of borehole colored TV imaging technology to dam leakage detection

By taken the detection on the leakage of a dam as the study case，the dynamic observation test with borehole colored TV imaging technology is firstly adopted to dam leakage detection on the basis of the conventional detection technologies of water level observation，tracer test，etc.The test results of the leakage locations are strongly coincided with those detected out by the tracer test，which not only re-check the results from the tracer test，but also find out the distribution elevations of the leakage locations and estimate the relevant seepage velocities.Through the construction inspection concerned，it shows that the test result is precise and reasonable，thus it indicates that the borehole colored TV imaging technology has certain research and engineering significances for the dam leakage detection.