广西某大型灌区工程岩溶引水隧洞线路比选研究  

Line comparison and selection for the karst diversion tunnel of a largescale irrigation zone project in Guangxi

作　　者：肖何平 XIAO He-ping(Guangxi Water&Power Design Institute Co.,Ltd.,Nanning 530023,China)

机构地区：[1]广西水利电力勘测设计研究院有限责任公司,南宁530023

出　　处：《广西水利水电》2025年第2期9-13,共5页Guangxi Water Resources & Hydropower Engineering

摘　　要：广西某大型灌区工程总干渠前段隧洞穿越打狗河左岸背斜河间地块的可溶岩地层,岩溶强发育,存在严重涌水突泥、顶板溶洞充填物陷落冒顶、底板塌陷等工程地质问题。从线路长度、地形地貌、地层岩性、地质构造、地下水系统、岩溶风险初判等多方面对3个隧洞方案进行比选,研究成果为引水隧洞线路地质比选提供科学依据。The tunnel in front of the main trunk canal of a large-scale irrigation zone project in Guangxi passes through the soluble rock stratum in the anticlinal inter-fluvial block on the left bank of Dagou River,where karst de-veloped intensely and there exist engineering geological problems such as severe water gushing and mud outburst,roof cavity filling collapse and floor collapse.Three tunnel lines were compared from the aspects of line length,to-pography and landform,stratigraphic lithology,geological structure,groundwater system,preliminary judge of karst risk.The results of study provide basis for geological comparison and selection of diversion tunnel line.

关 键 词：岩溶 引水隧洞 地质选线原则 地下水系统 地质比选 

分 类 号：TV672[水利工程—水利水电工程]