摘要
以云南省丽江九子海洼地-甘泽泉一带岩溶地下水示踪试验为例,探究示踪试验在岩溶地下水通道研究中的应用。根据研究区水文地质条件,分析了地下水连通性及流场特征、推测岩溶通道位置,并结合Qtracer2计算模型对示踪剂穿透曲线(BTC)进行定量分析,同时也得出了岩溶管道结构参数及水力参数。试验结果表明,九子海洼地-甘泽泉一带存在水力联系,且还有其他岩溶通道存在。由此可判定地下水处于缓速紊流状态。Qtracer2程序可以实现示踪剂穿透曲线(BTC)的定量解析。
To explore the application of tracer test in karst groundwater, the tracer test of the karst groundwater in the zone of Jiuzihai Swale - Ganze Spring in Lijiang River is taken as an example. According to the hydrological and geological conditions in the zone, the groundwater connectivity and flow field characteristics are analyzed, and the location of karst conduits are reck-oned. A quantitative analysis of break-through curve （ BTC） of the tracers is carried out by using Qtracer2 calculation model. The test results prove the existence of hydraulic connection in the zone of Jiuzihai Swale - Ganze Spring and other karst con-duits. The structural and hydraulic parameters of the karst conduits are worked out, which confirmed that the karst groundwater is in the state of turbulent flow at a low velocity. It can be concluded that Qtracer2 is applicable to the quantitative analysis of BTC of tracers.
出处
《人民长江》
北大核心
2015年第11期80-83,共4页
Yangtze River
基金
国家自然科学基金面上项目"岩溶隧道涌突水量计算方法深化与应用适宜性研究"(41472275)
