水文地质工程地质2013，Vol.40Issue(5)：11-15,5.
岩溶地下河管道流和管道结构及参数的定量示踪——以桂林寨底地下河为例
Quantitative tracing study of hydraulic and geometric parameters of a karst underground river: exemplified by the Zhaidi underground river in Guilin
摘要
Abstract
Quantitative tracing studies are the most reliable diagnostic techniques for estimating basic hydraulic and geometric parameters of karst conduits for hydrogeological generalization and numerical model.As an example,a tracer test was performed in the Zhaidi underground river in Guilin of China,in which uranine and rhodamine B were used as co-tracers and were monitored via the automatic detection technology with high precision,high density and multiple indicators.Based on breakthrough curves (BTCs),some parameters including mean residence time,average transfer velocity,dispersion coefficient,conduit volume,conduit surface area and flow cross-sectional area were determined.Moreover,the difference in adsorption between uranine and rhodamine B exist.The BTC of uranine can provide more reliable results owing to little adsorption.However,rhodamine B with strong adsorption need cautions when data are interpreted.关键词
岩溶地下河/定量示踪研究/管道流/管道结构/参数估测Key words
karst underground river/ quantitative tracing study / conduit flow / conduit structure/ parameter estimation分类
天文与地球科学引用本文复制引用
陈余道,程亚平,王恒,蒋亚萍,黄月群..岩溶地下河管道流和管道结构及参数的定量示踪——以桂林寨底地下河为例[J].水文地质工程地质,2013,40(5):11-15,5.基金项目
国家自然科学基金(41172229) （41172229）
国家科技支撑项目(2012BAC16B02) （2012BAC16B02）
