Abstract: All the dams of small reservoirs in Zhaoyuan City are earth-rock dams. This paper comprehensively describes the investigation methods used in the actual leakage investigation process, such as drilling, in-situ testing, geotechnical testing, geophysical prospecting and other methods, which have achieved a large number of application results in practical projects. The author summarizes the method of preliminarily judging reservoir seepage by using the changes in soil properties in practical work, and applies this method to engineering examples. Through on-site water injection tests, the seepage channels of the dam are finally determined, and the feasibility of this method in finding dam seepage is proved. This method is simple, effective, convenient and fast to use. It can quickly lock the causes of dam seepage and provide directions for further seepage analysis. It has certain reference value for future leakage investigation of earth-rock dams.

Key words: earth-rock dam, in-situ test, seepage, investigation

摘要： 招远市小型水库的大坝以土石坝为主,文中综合叙述了在实际渗漏勘察过程中所用到的勘察方法,如钻探、原位试验、土工试验、物探等,这些方法都在实际工程中取得大量应用成果。文中总结出依据土体性质的变化来初判水库渗漏的方法并应用到工程实例中,通过现场注水试验,最终确定了大坝的渗漏通道,证明了这种方法在查找大坝渗漏方面的可行性。该方法简单、有效,使用起来方便、快捷,能够迅速地锁定大坝渗漏的通道,为工程处理提供科学依据,对今后的土石坝渗漏勘察具有一定的参考价值。

关键词: 土石坝, 原位试验, 渗漏, 勘察