周宁水电站长引水隧洞施工  

Construction of Long Power Tunnel of Zhouning Hydropower Station

作　　者：彭昌锋 

机构地区：[1]闽东水电开发有限公司,福建宁德352100

出　　处：《水力发电》2006年第12期73-75,共3页Water Power

摘　　要：周宁水电站引水隧洞长12.352km,于2004年6月具备通水条件,总工期31个月。隧洞开挖采用在落地门型钻架平台上手风钻钻眼的钻爆开挖方法。开挖单工作面月平均进尺超过100m,最高月进尺162m/月,开挖后洞内表面起伏差小于15cm,糙率低于设计值,开挖质量较好。此外,隧洞混凝土衬砌基本做到“外光内实”。隧洞施工质量达到了国内类似工程的较好水平。The power tunnel of the Zhouning Hydropower Station measures 12.352km in length.It was ready for passing water in June 2004.The total construction period was 31 months.The tunnel was excavated by drill and blast using jumbos directly mounted on a gantry platform with a monthly advance of 100m and a maximum of 162ndmonth; the roughness of the internal side of the tunnel is less than 15cm, which is lower than the designed value. The lining of the tunnel is solid in side and smooth on the external side. The quality of the tunnel construction is considered to be as good as that of similar projects in China.

关 键 词：引水隧洞 开挖 混凝土衬砌 支护 灌浆 周宁水电站 

分 类 号：TV672.1[水利工程—水利水电工程]