高精度在线示踪技术在岩溶地下水文调查中的应用  

Application of high-precision online tracer technique in the hydrogeological investigation of karst groundwater

作　　者：徐尚全[1] 王鹏[1] 焦杰松 黄山松 杨平恒[1] 

机构地区：[1]西南大学地理科学学院三峡库区生态环境教育部重点实验室,重庆400715 [2]南江水文地质工程地质队,重庆401147

出　　处：《工程勘察》2013年第2期40-44,共5页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金(41072192;41103068);重庆市科委院士专项(编号:CSTS;2010BC7004);中国地质调查局项目(1212011087119);重庆市国土房管局科技项目;西南大学博士基金项目(SWU111009)

摘　　要：应用在线检测技术,根据示踪剂浓度连续变化的形态特征,对地下水含水介质、地下水运移特征进行分析,已成为当今国际水文地质调查研究的重要方向和发展趋势。本文对这种高精度在线监测的示踪技术的原理、方法进行了简要介绍,并以重庆市彭水县神龙谷至安家天窗段地下河示踪试验为例,探索高精度地下水示踪方法在岩溶水文地质研究中的应用。试验证明,神龙谷地下河与安家天窗之间存在水力联系;示踪剂回收率为20.391%,表明神龙谷地下河还有其它岩溶管道存在;利用Qtracer2软件对数据进行分析,可分析含水介质空间形态,获取其它水力参数。According to the morphological characteristics of the continuous change of the tracer concentration, the online tracer technique is used to analyze the aquifer medium and migration characteristics of groundwater, which has become an important direction and development of the current international hydrogeological investigation. The principle and method of high-precision online tracer technique is introduced and the underground river from the Dragon valley to Anjia skylight at Pengshui is taken as a case to explore the application of high-precision tracer technique in karst hydrogeological study. The results show that there is a hydraulic connection between the Dragon valley and the Anjia skylight. The tracer recovery is about 20. 391% , which includes other karst conduits existed in the Dragon valley. The spatial form of the aquifer medium and other hydraulic parameters are obtained based on using the software Qtracer2.

关 键 词：高精度 在线示踪 地下水 水文地质调查 岩溶地区 

分 类 号：P642.254[天文地球—工程地质学]