羊湖电站调压井施工技术措施

西藏羊湖电站水头高达１０２０ｍ（含水锤升压），又系三机式蓄能（发电抽水机组），调压井在整个工程中起着非常重要的作用，它位于海拔４４４０ｍ高程以上。设计为上室差动式，其结构由上室和下部竖井组成。本文简要介绍了在海拔高、气压低、严寒缺氧地区采用光面爆破开挖调压井竖井，滑模工艺浇筑竖井钢筋混凝土的施工技术。

Technical Measures in Construction of Surge Chamber at Yangzhuoyong Lake Project

Water head of Yangzhuoyong Lake project is up to 1020m(with water hammer pressure).There are three pumped storage generator units in total capacity. Therefore,the surge chamber plays a very important role in the whole project. The surge chamber is located above the elevation of 4440m.It is designed as upper surge chamber and differential surge chamber.It is consisted of the upper surge chamber and lower shaft. This paper briefly introduces the construction technique for excavation of the shaft by smooth blasting and placing of reinforced concrete by sliding formwork in such a high elevation,low air pressure,severely cold and oxygen lacking area.