应用综合物探方法探查坝体渗漏隐患

Detect hidden defects of dam seepage by comprehensive geophysical exploration technique

在堤防质量检测时,地球物理方法能够实现快速、无损的探测,但采用单一物探方法对堤防隐患的判别易产生多解,也很难对堤防质量做出准确分类。本文在分析高密度电法、伪随机流场法和多道瞬态面波法工作原理的基础上,利用综合物探方法探查水库大坝渗漏隐患的详细状况,并确定渗水明流的进水口、渗漏带的平面位置及其发育深度,为堤防质量检测提供了一种新的工作方法。

In the quality detection of dams, the geophysical methods could carry out fast and undamaged detection. It would arise multiple solution easily if adopting single geophysical prospecting method to distinguish the hidden defects of dam, and it is also very difficult to find the accurate classification to the dam quality. The paper analyzes the working principle of high-density resistivity method, flowing field method and transient surface wave method, then it relates how to detect hidden defects of dam seepage, confirm the groundwater intake and find out the locality and buried depth of the hidden defects of dam by comprehensive geophysical exploration technique. So it provides the new working method for detecting the dam quality.