雅砻江两河口水电站初期导流洞下闸准备关键技术

Key Technologies for Preparing Initial Diversion Tunnel Closing of Lianghekou Hydropower Station in Yalong River

雅砻江两河口水电站初期导流洞下闸准备对门槽填框试提及下放、闸门门槽及周边水下探摸、下闸应急预案等关键技术,对下闸过程中及下闸后遇到了一些问题提供了有效的技术手段,取得了很好的效果,确保了下闸成功。同时,为后续导流洞封堵施工创造了有利条件。

The key technologies of gate slot filling frame test, gate slot and surrounding underwater exploration,emergency plan for gate closure, are mentioned in the preliminary preparation for gate closure of diversion tunnel of Lianghekou Hydropower Station in Yalong River. This paper provides effective technical measures for problems encountered during and after gate closing, and achieves good results and ensures successful gate closing.At the same time, it creates favorable conditions for subsequent closure construction of diversion tunnel.