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利用堵塞天然出水溶洞的“堵洞试验”,研究水库渗漏问题,在国外曾经采用过。国内有许多在暗河或溶洞中修建地下水库和水电站的实例。堵塞岩溶系统出水通道,形成独特的地下水库,随之岩溶系统的水文地质特征(水位、水质、出水量、出水点等)将发生一系列的变化。选择对水库渗漏具有控制作用的岩溶系统进行这一试验,详细收集和研究这些资料,对评价水库渗漏具有重要意义。本文以彭水水电站为例,对堵洞试验在岩溶渗漏研究中的作用进行了初步总结。
The use of plugging holes blocked the natural water hole test, study the problem of reservoir leakage, has been used abroad. There are many examples of underground reservoirs and hydropower stations built in river or caves in China. Block the outlet channel of the karst system and form a unique underground reservoir. Subsequently, a series of changes will occur in the hydrogeological features (water level, water quality, water discharge, water discharge points, etc.) of the karst system. Choosing the karst system which has the control effect on the reservoir seepage and carrying out this experiment, collecting and studying these data in detail is of great significance for evaluating the reservoir seepage. Taking Pengshui hydropower station as an example, this paper summarizes the role of plugging holes in the study of karst leakage.