琼中抽水蓄能电站高压引水系统布置与设计  

Layout and Design of the High Pressure Diversion Pipes for Qiongzhong Pumped Storage Power Station

作　　者：朱金华 王化龙 苏凯[3] 

机构地区：[1]海南蓄能发电有限公司,海南海口570311 [2]中国电建集团中南勘测设计研究院有限公司,湖南长沙410014 [3]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《水电与新能源》2015年第6期6-12,共7页Hydropower and New Energy

基　　金：国家自然科学基金资助项目(No.51179140)

摘　　要：琼中抽水蓄能电站采用一洞三机的布置形式,岔管段最小覆盖层厚度与最小主应力条件满足规范要求,且运行期衬砌结构整体裂缝宽度处于可控范围内,检修期间,在外水压力作用下结构出现整体受压破坏的可能性较小,具备采用钢筋混凝土衬砌的条件。另外通过对不同钢岔管方案的比较,认为钢板衬砌需要的高强钢材用量较大,考虑到直接投资和工期方面的明显优势,最终推荐采用衬砌厚度为1.0 m的钢筋混凝土衬砌方案。The layout and design of the high pressure diversion pipes for Qiongzhong Pumped Storage Power Station are introduced.A layout scheme of"one pipe for three units"is chosen.Considering that the specification requirements on the minimum cover depth and the minimum principle stress conditions of the branch pipes are satisfied, and the crack width in the concrete lining is acceptable under operation conditions, the scheme of reinforced concrete lining is feasi-ble.In addition, the overall safety factor against compressive failure of the lining is considerable under maintenance con-ditions.On the other hand, several steel branch pipe schemes are presented and compared.It shows that the reinforced concrete lining scheme outperforms the steel lining schemes with less investment and also less construction period.Thus, a reinforcement concrete lining scheme with 1.0 m thickness is adopted as the final design.

关 键 词：抽水蓄能电站 衬砌形式 钢筋混凝土岔管 钢岔管 有限元 

分 类 号：TV743[水利工程—水利水电工程]