一起输水隧洞特大突泥涌水处理实例分析  

Study on treatment scheme for especially serious mud and water inrush in water conveyance tunnel:case of Water Diversion Project from Niulan River to Dianchi Lake

作　　者：胡清顺 王和芬 唐明秀 HU Qingshun WANG Helen TANG Mingxiu(Water Transfer Center in Yunnan Province, Kunming 650051, China Yunnan Institute of Water ＆ hydropower Engineering Investigation, Design and Research, Kunming 650051, China Chuxiong Bureau, Administration Bureau of Water Di- version Engineering in Central Yunnan Province, Chuxiong 675000, China)

机构地区：[1]云南省调水中心,云南昆明650051 [2]云南省水利水电勘测设计研究院,云南昆明650021 [3]云南省滇中引水工程建设管理局楚雄分局,云南楚雄675000

出　　处：《人民长江》2017年第9期65-69,共5页Yangtze River

摘　　要：牛栏江-滇池补水工程输水线路金奎地隧洞设计桩号K9+593处为灰岩与泥岩结合带,地质条件复杂,地下水位较高,施工开挖过程中先后发生两次较大规模的塌方和特大突泥涌水。初期拟采用超前大管棚、注浆及强支撑等支护措施进行处理,实际操作中管棚施工极为困难,处理效果极不理想,后决定采用绕线方案。分析了初始方案无法实施的原因,改线方案的技术要求和施工重点,相关经验可供类似工程突泥涌水处理借鉴。The design pile number K9 ＋ 593 in Jinkuidi Tunnel of Water Diversion Project from Niulan River to Dianchi Lake is in a combination zone of limestone and mudstone, where the geological condition is complex and the groundwater level is high, and two large scale mud and water inrush events occurred during excavation. In the early stage, the supporting measures such as large pipe shed, grouting and strong support were adopted. However, it was found that the construction of pipe shed was difficult and the treatment effect was not as expected in actual construction, then the realignment scheme was carried out. The reason why the initial scheme could not be implemented is analyzed, and the technical requirements and construction emphasis are intro- duced, which can provide reference for mud and water inrush treatment in similar projects.

关 键 词：突泥涌水 轴线调整 支护处理 输水隧洞 牛栏江-滇池补水工程 

分 类 号：TV67[水利工程—水利水电工程]