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该文以坪头水电站为例,对厂址区的18个水样进行Q型聚类分析,绘制出聚类分析谱系图。依据谱系图,将研究区的岩溶水划分为龙头沟地下水系统、万波沟地下水系统、地表水三个部分。同时判断出厂区尾水交通洞7号涌水点是龙头沟岩溶水系统的主要排泄通道,且该岩溶水系统与地表水之间有较密切的水力联系。这一结果可作为厂区排水方案的设计依据。
Taking Pingtou hydropower station as an example, Q-type cluster analysis is conducted on 18 water samples in the site area, and a cluster analysis pedigree map is drawn. According to the phylogenetic map, the karst water in the study area is divided into three parts: the faucet ditch groundwater system, the Wando trench groundwater system and the surface water. At the same time, it is concluded that the water gush of No.7 tailrace traffic tunnel is the main drainage channel of the faucet karst water system, and there is a close hydraulic connection between the karst water system and surface water. This result can be used as the design basis for the drainage scheme of the plant.