地下水连通介质结构分析——以寨底地下河系统实验基地示踪试验为例  

Analysis on the connecting medium structure of groundwater——taking the tracer tests in the experiment base of Zhaidi ground-river system as an example

作　　者：易连兴[1] 夏日元[1] 唐建生[1] 黄俊杰[1] 

机构地区：[1]中国地质科学院岩溶地质研究所,广西桂林541004

出　　处：《工程勘察》2010年第11期38-41,共4页Geotechnical Investigation & Surveying

基　　金：所控项目(2008004);所控专项(2008036)

摘　　要：对寨底地下河系统北部区域进行示踪试验,确认了北部区域的地下水分水岭边界。进一步对示踪试验数据进行详细分析,推测得到从投放点G06到排泄点G16、G20之间的地下水连通介质结构,其中G06～G16段以管道介质为主并发育一条支道和一个以上溶潭,G16～G20段含水介质则以裂隙为主。最后依据投放量、最大检测浓度等建立相对浓度系数概念,并用于分析比较G06至G16、G16至G20两段不同含水介质条件下的地下水流的径流集中程度。Base on the tracer tests in the north area of Zhaidi ground-river system,the watershed boundary in the area is confirmed.Through the analysis on the testing data,the structures of the groundwater connecting medium from the test in-spot G06 to the out-spot G16,G20 are extrapolated.The medium between G06 and G16 is mainly composed of the conduits and there is a sub-conduit and more than one pool,and the medium between G16 and G20 is mainly composed of fissures.The concept of the relative concentration coefficient is set up by using the amount in tracer tests and the testing max-concentration,which is used to analyze the runoff concentrating grade of groundwater flow for the two different water-bearing medium conditions between G06—G16 and G16—G20.

关 键 词：岩溶地下河 示踪试验 介质结构 径流集中度 

分 类 号：P642.254[天文地球—工程地质学]