摘要
本文通过对各类岩溶地下水管流示踪场进行模型慨化,导出了五种示踪场的历时浓度分布规律。同时利用理论示踪曲线与实际示踪曲线对比分析,得出了岩溶地下水管流场类型与示踪曲线间的下述关系: 1.岩溶地下水单管流场与上半峰对称的单峰示踪曲线对应: 2.岩溶水并联管流场与多峰示踪曲线对应; 3.岩溶单管串联地下水池流场(水池数量<5)与非对称示踪曲线或(水池数量≥5)钝峰示踪曲线对应; 4.并联管流串联有水池时,示踪曲线形状兼有两类流场的示踪曲线特征; 5.管道、裂隙双重并联流场与“夷平”峰丛状示踪曲线对应。 上述关系为用示踪试验探测岩溶水管流场提供了理沦依据。文中列举一应用实例。
Various conduit flow fields of karstic groundwater determined by tracer flow method have been conceptualized in this paper, with five duration-concentration curves being deduced. The correlation between the theoretical and measured tracer curves gives the relationship between the types of conduit flow field and the curves as follows:
1)The single conduit flow field of karstic groundwater corresponds with the tracer curve, of which the upper part of the peak is symmetrical.
2) Parallel conduit flow field of karstic water corresponds witrh the multi -peak tracer curve.
3)Single conduit flow series in contact with karstic groundwater pools (the number of pools<5) corresponds with asymmetrical tracer curve or obtuse peak tracer curve (the number of pools≥5).
4) When there are pools in contact with parallel conduit flow series, the patterns of tracer curves show the characteristics of both single and parallel flow fields.
5)The duplex parallel conduit-fissure flow fields correspond with the tracer curves of peak-cluster 'denudated' pattern.
The relationships above provide theoretical evidences for probing karstic conduit flow fields by using the tracer flow test. Case histories in this respect are described in the paper.
出处
《中国岩溶》
CAS
CSCD
北大核心
1990年第3期211-219,共9页
Carsologica Sinica
