Discussion on rapid detection technology for dike leakage
Geophysical detection methods are widely used in dike leakage detection,and various geophysical methods have limitations and need to be verified by multiple methods.According to the needs of rapid detection of dike leakage,the geophysical method of flow field detection is mainly used and supplemented by high-density electric detection to detect dike leakage.The results show that the flow field method can quickly determine the leakage inlet area of the dam,and there are two leakage locations in the dam,one is leakage in the form of pipe surge,and the other is crack or weak interlayer.The high-density electrical test results revealed the areas with high water content inside the dam body,which further confirmed that the two leaks were separated independently,and the leakage channel did not penetrate the dam body obliquely.
geophysical explorationleakage detectionflow field methodfield strength valueHigh-density electrical method