基于示踪试验求解岩溶含水层水文地质参数  

Determination of Hydrogeologic Parameters of Karst Aquifer Based on Tracer Test

作　　者：鲁程鹏[1] 束龙仓[1] 苑利波 张蓉蓉[1] 黄币娟[1] 王彬彬[1] 

机构地区：[1]河海大学水文水资源与水利工程科学国家重点实验室,南京210098 [2]辽宁工程勘察院,辽宁锦州121001

出　　处：《吉林大学学报（地球科学版）》2009年第4期717-721,共5页Journal of Jilin University：Earth Science Edition

基　　金：国家'973'计划项目(2006CB403200);高等学校学科创新引智计划项目(B08048);教育部长江学者和创新团队发展计划(IRT0717)

摘　　要：示踪试验作为重要的水文地质试验,长久以来以探明地下水的水力联系、测定地下水流速为主要目标。针对岩溶地区地下水流速较快的特点,提出了一套基于对流稀释作用的数学模型,利用电导率与溶质浓度的正相关关系,可方便准确地计算示踪试验投源井的天然径流量和地下水中示踪剂的背景浓度。根据后寨地下河流域陈旗典型试验区的计算成果,投源井的天然径流量为0.241 4 m3/min,辅以必要的水文地质调查,即可估算地下水流速以及含水层的渗透系数。Tracer test as an important hydrogeology test, are widely used to explore the hydraulic connectivity underground, measure the groundwater flow velocity. According to the fast flow in karst aquifer, a mathematic model based on the dilution function of convection is proposed. By means of this model and the linear relationship between electricity conductivity and solution concentration, the authors can easily and accurately calculate the groundwater runoff of source well and the tracer concentration in the original groundwater. In this case study, the runoff of source well which in Chenqi of Houzhai underground river basin is 0. 241 2 m^3/min. Furthermore, supplemented with necessary hydrogeology investigation, the groundwater flow velocity and aquifer conductivity can be estimated.

关 键 词：示踪试验 天然径流量 对流稀释 水文地质参数 

分 类 号：P641.134[天文地球—地质矿产勘探]