滇中引水工程隧洞施工“九超”浅析  

Analysis of“Nine key points”in tunnel construction of Water Diversion Project in Central Yunnan

作　　者：胡朝碧 Hu Chaobi

机构地区：[1]云南省滇中引水工程建设管理局,昆明650051

出　　处：《中国水利》2021年第14期31-34,共4页China Water Resources

摘　　要：滇中引水工程是172项重大节水供水工程标志性工程之首,工程建设存在“六项世界之最”“十大世界级技术难题”。为加快推进滇中引水工程建设,必须全面、准确理解工程具有超长隧洞、超高地应力、超高外水压力“三超”特点,充分运用超前探、超前灌、超前护“三超”安全风险控制措施,通过严格控制超挖、超填、超灌“三超”降低建设成本。上述“九超”认识和措施在滇中引水工程建设管理实践中取得了良好效果。The Water Diversion Project in Central Yunnan is the first landmark project among 172 major water-saving and water supply projects.There are“Six world-class problems”and“Ten world-class technical problems”in the construction.To accelerate the project construction,the“Three super”characteristics of the project,which are super-long tunnel,super-high ground stress,super-high external water pressure,must be comprehensively and accurately understand,the“Three advances”safety measures to control the risk,which are advanced detection,advanced grouting,and advanced rock support should be fully used,and the construction cost can be reduced by strictly controlling“Three over”,which are over-excavation,over-filling and over-grouting.The“Nine key points”idea and measures above have achieved good results in the construction management practice of the Water Diversion Project in Central Yunnan.

关 键 词：滇中引水工程 超长隧洞 超高地应力 超高外水压力 安全风险控制 建设成本控制 

分 类 号：TV512[水利工程—水利水电工程]