在线监测仪在岩溶地下水示踪实验中的应用——广西临桂县罗锦地下水示踪试验  

Application of online monitor to tracing test of karst groundwater:A case study in Luojin of Lingui County,Guangxi Province

作　　者：邓振平[1,2] 周小红[2] 邹胜章[2] 罗英[2] 孙骞 

机构地区：[1]中国地质大学(北京)水资源与环境学院,北京100083 [2]中国地质科学院岩溶地质研究所,广西桂林541004 [3]桂林市环保局环境监察支队,广西桂林541002

出　　处：《水资源保护》2009年第2期75-78,共4页Water Resources Protection

基　　金：科技部"973"项目(2006CB202401)

摘　　要：采用氯化钠作示踪剂在罗锦响水岩地下河开展示踪试验,以AgNO3标准溶液滴定检测。根据回收率的大小判断天井洞地下河是马冲—源头地下河系统的唯一通道;但在投放点(响水岩)与天井洞接收点之间地下河局部存在几个小溶潭。此外,本次示踪试验在天井洞地下河布置在线监测仪进行示踪离子检测,将检测结果与人工取样检测的结果进行分析比较,结果表明在线监测仪器在示踪试验回收率计算及示踪剂到达时间的判断上具有明显的优势。A tracing test of karst groundwater was carried out in the Xiangshuiyan subterranean stream in Luojin. NaCl was adopted as the tracer and titrated with a standard AgNO3 solution. The resulting recovery rates indicate that the Tianjingdong subterranean stream is the only channel connecting the Machong and Yuantou subterranean streams, but there are several small ponds obstructing groundwater flow from the Xiangshuiyan subterranean stream, the dropping point of the NaCl, to the Tianjingdong subterranean stream, the recovery point of the NaCl. An online monitor was set up in the Tianjingdong subterranean stream to monitor NaCI. The monitoring results were compared with the examination results of manual sampling, showing that the online monitor more accurately calculates the recovery rate and judges the arrival time of the tracer.

关 键 词：示踪试验 在线监测仪 相关性分析 地下河 罗锦 

分 类 号：P641.75[天文地球—地质矿产勘探]