关键词: 堤防渗漏, 联合剖面法, 伪随机流场法, Signorini型变分不等式

Abstract: Leakage is one of the main hidden hazards to the safety of hydraulic structures. To deal with leakage problems economically and efficiently, it is necessary to identify leakage channels first. There are many methods for leakage detection at home and abroad, such as ground penetrating radar, DC resistivity method and flow field method. In this paper, aiming at the leakage problem of a power station in Hunan province, combination of composite profiling method and pseudo-random flow field method is adopted for leakage detection and Variational inequality of Signorini type solution analysis. By this way, the leakage path is found accurately, laying a solid foundation for efficient leakage treatment.

Key words: levee leakage, combined section method, pseudo-random flow field method, variational inequality of Signorini type