初探物化指标电导率在水库岩溶渗漏分析中的应用

Preliminary Study on Application of Physical-Chemical Index Conductivity in Reservoir Karst Leakage Analysis

贵州的喀斯特地貌广泛分布,水库多存在复杂岩溶渗漏问题。针对钻探、物探、同位素示踪法等勘察手段在地下水探测方面存在的不足,笔者初次探索通过研究电导率在地下水中的变化规律来对水库岩溶渗漏进行分析。结合工程实例,笔者通过测定地下水电导率及分析其相关性,对水库岩溶渗漏进行分析评价,并通过采用地表调查、物探和钻探的勘察结果与采用电导率法分析结果进行验证,结果一致,为水库岩溶渗漏分析提供有效的勘察方法。

Karst landforms are widely distributed in Guizhou,and there are many complex karst leakage problems in reservoirs.In view of the shortcomings of exploration methods such as drilling,geophysical prospecting and isotope tracing in groundwater detection,the authors first explored the variation law of conductivity in groundwater to analyze karst leakage of reservoirs.Combined with the engineering example,the authors analyze and evaluate the karst leakage of reservoirs by measuring the conductivity of groundwater and analyzing its correlation,and verify the analysis results of conductivity method by using the investigation results of surface investigation,geophysical exploration and drilling.The results are consistent,which provides an effective investigation method for the analysis of karst leakage of reservoirs.