衬砌混凝土等级对输水隧洞地震响应的影响研究  

Study on Influence of Lining Concrete Grade on Delivery Tunnel Seismic Response

作　　者：李志环 LI Zhi-huan(Seismic Water Conservancy Station of Lingyuan County Water Affairs Bureau,Lingyuan 122524,China)

机构地区：[1]凌源县水务局宋杖子震水利站

出　　处：《黑龙江水利科技》2019年第12期80-83,共4页Heilongjiang Hydraulic Science and Technology

摘　　要：中国属于多地震国家,开展输水隧洞等水利工程设施的抗震性能研究具有重要意义。文章以辽宁省柴河供水工程输水隧洞为工程背景,通过ANSYS有限元分析的方法,对衬砌混凝土等级对输水隧洞地震响应的影响进行数值模拟研究,结论显示提高输水隧洞混凝土衬砌的等级,会使地震应力作用下的输水隧洞应力增大,不利于隧洞本身抗震性能的改善。因此,建议采用C25混凝土进行输水隧洞衬砌施工,同时结合外部抗震带等其他工程措施,改善输水隧洞的抗震性能。Our country belongs to multi-earthquake country,to develop the research of anti-seismic property of water conservancy project facilities,such as the delivery tunnel,is of great significance.Taking the delivery tunnel of Chai river water supply project in Liaoning Province as the background,ANSYS finite element analysis method was used to simulate and research numerically for the influence of lining concrete grade on delivery tunnel seismic response.The conclusion shows that the stress under the action of earthquake will make the water conveyance tunnel of stress increase,if the level of the water conveyance tunnel concrete lining is improved,is not conducive to the tunnel itself for improving the seismic performance.Therefore,C25 concrete is proposed to use to construct the convey tunnel lining,meanwhile,combined with other project measures of external anti-earthquake belt etc.,to improve the seismic performance of delivery tunnels.

关 键 词：输水隧洞 混凝土等级 地震响应 研究 

分 类 号：TV554[水利工程—水利水电工程]