积石峡水电站压力管道设计与分析  

Design and Analysis on Penstocks of Jishixia Hydropower Station

作　　者：张曼曼[1] 石广斌[1] 王红[1] 费秉宏[1] 

机构地区：[1]中国水电顾问集团西北勘测设计研究院,陕西西安710065

出　　处：《水力发电》2011年第11期36-39,共4页Water Power

摘　　要：积石峡水电站压力管道为钢衬钢筋混凝土管,直接敷设在地基上,钢管直径11.5 m,最大内水压力1.05 MPa。采用平面有限元按分载法进行压力管道钢衬及其外包混凝土结构承载能力计算,基于有限元分析结果,取消了压力管道伸缩节,而采用伸缩管,节约了工程投资,方便了施工和运行管理,其设计经验和理念可供同类工程借鉴。The penstock of Jishixia Hydropower Station is steel pipe encasing by reinforced concrete and directly laying on foundation. The diameter of steel pipe is 11.5 m and the maximum internal water pressure is 1.05 MPa. The bearing capacity of penstock structure is calculated with plane finite element method according to the load-distributed method. Based on finite element analysis results, the expansion joint of penstock is cancelled and replaced with compensating pipe. The design can save investment, make construction, operation and management more convenient, and also be as reference for similar projects.

关 键 词：压力管道 伸缩管 有限元分析 积石峡水电站 

分 类 号：TV222[水利工程—水工结构工程] TV672.2