某抽水蓄能电站尾水管三维有限元分析  

Three-dimensional Finite Element Analysis of Draft Tube of Pumped-Storage Power Station

作　　者：肖妮[1] 刘晓青[1] 王锦锋[1] 张石[1] 

机构地区：[1]河海大学水利水电学院,南京210098

出　　处：《三峡大学学报（自然科学版）》2014年第6期20-23,共4页Journal of China Three Gorges University：Natural Sciences

基　　金：国家自然科学基金项目(51279050);国家高技术研究发展计划(863计划)课题(2012AA112507)

摘　　要：结合某抽水蓄能电站工程实际情况,建立地下厂房三维有限元整体模型,将尾水管衬砌混凝土结构与围岩视为联合结构共同承担上部机电设备下传荷载和尾水管内外水压力等荷载作用,并考虑衬砌混凝土结构与围岩材料性质的差别,研究尾水管衬砌混凝土结构的受力变形特征,分析尾水管在三维受力状态下典型部位的主拉应力及主压应力,对应力状态作出评价,并计算典型截面配筋面积.Combined with the actual situation of a pumped storage power project, a three-dimensional finite element model for underground powerhouse is established. Considering the surrounding rock combining with draft tube lining cooperatively to bear loads of electrical equipments and the internal and external water pres- sures of draft tube, meanwhile, considering differences of concrete lining and surrounding rock in material properties, the forced deformation performance of concrete lining is studied. The principal tensile stress and principal compressive stress in typical parts of draft tube in three-dimensional stress state are analyzed. Final- ly, the stress state is evaluated, and reinforcement areas of typical cross-sections are given.

关 键 词：抽水蓄能电站 有限元 尾水管 配筋 

分 类 号：TV31[水利工程—水工结构工程]