Abstract: The diversion tunnel is a common structure in construction of water conservancy and hydropower project. After the completion of diversion task, concrete plug is needed to block off the diversion tunnel permanently. This paper introduces the design scheme, structure layout, technology requirements and experiences in the construction of concrete plug for diversion tunnel.

Key words: diversion tunnel, plug design, construction

摘要： 导流隧洞是水利水电工程施工中最常见的导流建筑物之一。在完成导流任务后，一般需采用混凝土堵头进行永久性封堵。笔者介绍了导流隧洞混凝土堵头的方案设计、结构布置和施工技术要求和经验。

关键词: 导流隧洞, 堵头设计, 施工