中国岩溶2013，Vol.32Issue(2)：148-152,5.
基于在线示踪技术的岩溶地下河流场反演与水文地质参数估算
Flow field inversion of karst underground river and estimation of hydrogeological parameters based on online tracer technique
摘要
Abstract
A high-resolution online tracer test is performed in the Qingmuguan karst underground river system to get essential data for researching the morphologic features of karst underground river and estimate hydrogeological parameters.The recovery rate of the tracer is 99 ％.The break-through curve of the tracer has two peaks.The first and the second peak value is respectively 37.63 and 1.21.The skewness and kurtosis of the two peaks are both greater than 0.The results of test confirmed that there is no pond developed in the Qinmuguan karst underground river.And the groundwater flow is turbulent.The paper presents empirical formulas and the formulas with practical physical meaning according to the test data and geospatial information of the underground river.The mean velocity of groundwater,friction factor,Reynolds number,Sherwood number and Schmidt number were estimated by these formulas,and the value is respectively 204 m/d,0.26,127 980,4 165,1 140.These parameters show that the structure is complex in the pipeline of the Qingmuguan underground river and the environment of groundwater is vulnerable.In addition,the flow state that is represented by the estimated Reynolds number is consistent with the result that comes from concentration curve of the tracer.关键词
在线示踪/岩溶地下河/水文地质参数/青木关Key words
online tracer test/ karst underground river/ hydrogeological parameter/ Qingmuguan分类
天文与地球科学引用本文复制引用
陈雪彬,周军,蓝家程,肖京格,杨平恒..基于在线示踪技术的岩溶地下河流场反演与水文地质参数估算[J].中国岩溶,2013,32(2):148-152,5.基金项目
国家自然科学基金(41072192,41103068)、2011年度重庆市国土房管局科技项目、西南大学博士基金项目(SWU111009)、重庆市科委院士专项(2010BC7004) （41072192,41103068）
