The Method and Technique to Detect the Hidden Defects of the Earth Dam Leakage by Applying Spontaneous Electric Field
Some types of spontaneous electric field associated with natural and exceptional leakage of the earth dam are investigated in the paper. The filtrating electric field is a good field source to detect the earth dam leakage. It is the leading actor that comes from uniform and concentric seepage flows. According to the primitive test data of marine hydraulic engineering in all of the country, the writer generalizes a set of technical system to detect the leakage of dams by the method of Spontaneous Electric Field. From the reflecting of leakage in the electricity curve, the technique will be concentrated five kinds of basic appearances that are the narrow difference, the breadth difference, the double breadth difference, some difference and the difference as a tower. It not only can judge the natural leakage and the exceptional leakage, but also can explain and predict the seepage space of which the width, the depth, the direction, and the flow changing with the time. Above all, the technique would be offering the dependable data for the reinforce engineering in the future.
spontaneous electric field filtrating electric field natural leakage ezceptional leakage detecting of hidden defect
ZHENG Can-tang
Water Resources Research Institute of Shandong Province Jinan China 250013
国际会议
西安
英文
1-24
2005-11-01（万方平台首次上网日期，不代表论文的发表时间）