岩滩水电站扩建工程地下厂房顶拱施工通道优化设计

Optimal Design of Access Tunnel for Construction of Underground Powerhouse Crown in Extension Project of Yantan Hydropower Station

在岩滩水电站扩建工程地下厂房施工中,因顶拱开挖的施工进度直接关系到整个工程的进度,因此对厂房顶拱施工通道进行合理的布置,尽早完成该通道的施工,进行厂房顶拱的开挖,能有效缩短扩建工程第一台机组的发电时间,为项目直接带来经济效益。文中对优化设计方案进行了介绍。

The construction progress of access tunnel, for the underground powerhouse crown, directly decides the progress of the whole project. Therefore, this access tunnel is required to be arranged reasonably and completed as soon as possible, so as to shorten the construction period of the first unit and bring about direct economic benefit to the project. The paper makes a detailed introduction to the optimal design.