糯扎渡水电站导流洞临时堵头混凝土快速连续施工技术

Quick and successive concrete construction technology for temporary plug of diversion tunnel of Nuozhadu Hydropower Station

糯扎渡水电站导流洞封堵施工工期十分紧张,是工程蓄水发电关键项目,为及时应对下闸后水位上涨带来的压力及风险,设计拟定在各条导流洞上游增设临时堵头。本文通过对导流洞临时堵头混凝土快速连续施工技术的总结,阐明临时堵体混凝土快速施工具体施工方法,为类似工程及今后水利水电应急抢险提供借鉴。

As the construction period of the plugging of the diversion tunnel for Nuozhadu Hydropower Station, the key item for the impoundment and power generation, is quite limited, additional temporary plugs are designed to be arranged at the upstream ends of all the diversion tunnels. Through the technical summarization made on the quick and successive concrete construction of the temporary plugs for the diversion tunnels, the specific construction method for the quick construction are expatiated herein, so as to provide some references for the similar projects and the emergency risk-elimination of water resources and hydropower projects concerned.