龙树隧洞穿越复向斜段涌突水特征及成因分析  

Water Disaster Characteristics and Cause Analysis of Longshu Tunnel Crossing Synclinal Section

作　　者：张雄云 黄靖宇 杨艳娜[2] 米健 田毅 ZHANG Xiongyun;HUANG Jingyu;YANG Yanna;MI Jian;TIAN Yi(Yunnan Institute of Water&Hydropower Engineering Investigation,Design and Research,Kunming 650021,China;Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]云南省水利水电勘测设计研究院,云南昆明650021 [2]成都理工大学,四川成都610059

出　　处：《云南水力发电》2025年第2期38-41,共4页Yunnan Water Power

摘　　要：针对于滇中引水工程龙树隧洞穿越复向斜的涌突水问题,以水文地质学、水文地球化学与同位素水文学作为基础理论指导,分析隧洞的水害成因,并结合水化学与同位素的测试结果,揭示了隧洞涌水的补给来源、水循环强度及其与隧址区岩溶水的水力联系。结果表明:隧洞水害是由于施工揭露了复向斜内的承压水所致,水源主要为干海子组(T_(3g))中的裂隙水,含水层水循环过程相对缓慢,与区内岩溶水的水力联系较弱。Aiming at the problem of water inrush from Longshu Tunnel of Dianzhong Water Diversion Project passing through the synclinorium,based on the basic theories of hydrogeology,hydrogeochemistry,and isotope hydrology,the causes of water disasters in the tunnel are analyzed.Combined with the test results of hydrochemistry and isotopes,the recharge source of tunnel water,the strength of water cycle and the hydraulic connection with karst water in the tunnel area are revealed.The results show that the water damage oftunnel is caused by the exposed confined water in the synclinorium.The water source is mainly the fissure water in Ganhaizi Formation(T_(3g)).The water circulation process of the aquifer is relatively slow,and the hydraulic connection with the karst water in the area is weak.The research results can determine the impact of tunnel construction on the surrounding water environment and provide a basis for the later water environment restoration plan.

关 键 词：隧洞工程 涌水分析 向斜构造 滇中引水 涌突水 

分 类 号：P641[天文地球—地质矿产勘探] TV672.1[天文地球—地质学]