水电站多井调压室系统小波动稳定理论推导与分析  

Theoretical derivation and analysis of hydropower station multi-surge chamber system small fluctuation stability

作　　者：杨济铖[1] 鞠小明[2,1] 张玉润[1] 陈玲[1] 李振轩[1] 

机构地区：[1]四川大学水利水电学院,四川成都610065 [2]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065

出　　处：《西南民族大学学报（自然科学版）》2013年第5期756-762,共7页Journal of Southwest Minzu University(Natural Science Edition)

摘　　要：一些中低水头长隧洞引水式水电站需要采用较大的调压室稳定断面积,但受到地质、地形条件的制约,单一的大尺寸调压室有时不能满足施工开挖和结构设计安全要求.为了实现采用多个相隔一定距离的调压室串联的布置方式来代替单一的大尺寸调压室的需要,从理论上推导了上游多井调压室系统的小波动稳定条件,分析了多个调压室之间的距离和面积对小波动稳定性的影响.结果表明多井调压室系统的小波动稳定性与串联在一起的多井调压室的断面积和调压室之间的距离都存在一定的关系.Some middle or low head restricted by geological conditions, excavation and structural design. long tunnel diversion type power stations need larger surge-chamber stability areas, but are and a single large-size surge-chamber can＇t satisfy the safety requirements of construction In order to realize the need for adopting the combined arrangement form of multiple series surge chambers which have larger standoff distances to replace the single large-size surge chambers, this paper deduces the small fluctuation stability condition of multi- surge chambers in the upstream, and studies the influence of distances and areas of multiple-surge chambers on the small fluctuation stability. The results show that multi-surge chamber system small fluctuations stability and surge chamber basal area and the distance between the surge chambers have a certain relationship.

关 键 词：水电站引水系统 多井调压室 串联布置 小波动稳定性 

分 类 号：TV732.5[水利工程—水利水电工程]