摘要
应用三种数理统计方法对新安江水电站坝基水质分析资料作了处理,并作了水质成因机理的探讨。认为水中碳酸盐类物质的来源除与地下水的补给源有关外,部分来源于地下水对于帷幕体的侵蚀作用。此外,2～9坝段水的酸性化亦与基岩中硫化物及有机质的氧化有关;11～24坝段水的碱性化与基岩中长石类矿物的风化溶解作用有关。地下水径流条件也给水质的形成予一定的影响。揭示了坝基渗流场的地质和水文地质环境,为防治方案的实施提供了依据。
The data of the ground water quality under the dam foundation of Xinanjiang water power station are handled with three statistical methods.The mechanism affecting ground water quality is studied as well.It is concluded that the carbonate materials contained are partly from dissolution of the curtain;the acidification of the ground water under sections No.2～9 is related to oxidization of pyrite and organic substance while the alkalization of the ground water under sections No.11～24 to weath- ering and dissolution of feldspar in rocks.In addition,the behaviour of ground water flow has an im- portant influence on the ground water quality.These conclusions are useful for analysing the geologi- cal and hydrogeological circumstances of the seepage domain around the dam,and also useful for the consideration of steps to be taken.
出处
《河海大学学报（自然科学版）》
CAS
CSCD
1992年第4期54-60,共7页
Journal of Hohai University(Natural Sciences)
关键词
坝基
地下水质
水电站
化学成分
dam foundation
ground water quality
correlation analysis
cluster analysis
factor analysis
formation
