示踪试验在岩溶地区金属矿山地下水污染调查中的应用  

Application of Tracer Test in Groundwater Pollution Investigation of Metal Mines in Karst Areas

作　　者：梁川 陈志宇 李伟 易春瑶 江越潇 宋渊 王辛 王艺霖 Liang Chuan;Chen Zhiyu;Li Wei;Yi Chunyao;Jiang Yuexiao;Song Yuan;Wang Xin;Wang Yilin(Hubei Key Laboratory of Resources and Eco-Environment Geology,Wuhan Hubei 430034;Geological Environmental Center of Hubei Province,Wuhan Hubei 430034)

机构地区：[1]资源与生态环境地质湖北省重点实验室,湖北武汉430034 [2]湖北省地质环境总站,湖北武汉430034

出　　处：《国土资源导刊》2024年第3期43-47,共5页Land & Resources Herald

基　　金：湖北省典型区域地下水环境质量现状调查评估(编号:H2020429900S1-00001)。

摘　　要：为了研究示踪试验在岩溶地区金属矿山地下水污染调查中的应用,本文选取2个岩溶地下水场地进行示踪试验,计算了地下水流速,分析示踪试验影响因素,查明地下水径流路径。研究结果表明,黄石市大冶铁矿矿区地下水平均流速为37.2m/h,大冶市铜山口铜矿矿区地下水平均流速为7.6m/h。示踪试验的效果和试验地区的岩溶发育程度有关,岩溶越发育,示踪试验的效果越好。示踪剂选择荧光素钠的效果最佳,检出灵敏,且背景值低。示踪剂投放点选取天然落水洞、岩溶洼地、岩溶天窗和天然泉点等地的效果比钻孔的效果好。In order to study the application of tracer tests in groundwater pollution investigation of metal mines in karst regions,two karst groundwater sites were selected for tracer experiments.The groundwater flow velocity was calculated,the influencing factors of tracer tests were analyzed,and the groundwater flow paths were identified.The results show that the average groundwater velocity in the Daye iron mine area of Huangshi prefecture is 37.2 m/h,while in the Tongshankou copper mine area of Daye city,the average groundwater velocity is 7.6 m/h.The effectiveness of tracer tests is related to the degree of karst development in the test area;the more developed the karst,the better the effect of the tracer test.The choice of fluorescein sodium as the tracer proved to be the most effective,featuring high detection sensitivity and low background values.Selecting natural sinkholes,karst depressions,karst windows,and natural springs as tracer injection points yields better results than using boreholes.

关 键 词：示踪试验 岩溶地区 地下水污染 金属矿山 影响因素 

分 类 号：P641.12[天文地球—地质矿产勘探]