农田输水隧洞内力计算分析  

Calculation and Analysis of Internal Forces of Water Conveyance Tunnel in Farmland

作　　者：张敬博[1] 张文强 刘辉 ZHANG Jingbo;ZHANG Wenqiang;LIU Hui(Yangling Vocational and Technical College,Yangling Shaanxi 712100,China;Jining Planning and Design Institute,Jining Shandong 272000,China;Water Bureau of Guandu District,Kunming City,Kunming Yunnan 650031,China)

机构地区：[1]杨凌职业技术学院,陕西杨凌712100 [2]济宁市规划设计研究院,山东济宁272000 [3]昆明市官渡区水务局,云南昆明650031

出　　处：《农业工程》2021年第10期86-90,共5页AGRICULTURAL ENGINEERING

摘　　要：为了研究农田输水隧洞复合衬砌结构中初次支护与二次衬砌联合承载时的荷载分担问题,以云南临沧市某无压输水隧洞复合衬砌结构设计为例,按照初期支护和二次衬砌以7∶3的荷载分担比例进行复合衬砌结构内力计算,探讨在复合衬砌结构设计中采用7∶3的初次衬砌与二次衬砌承担比例的合理性与可行性,并对圆拱直墙型无压水工隧洞复合衬砌结构中二次衬砌结构内力进行分析,以期对同类型的输水隧洞设计施工具有一定的指导意义和参考价值。In order to study problem of load sharing in combined bearing of primary support and secondary lining in composite lining structure of farmland water conveyance tunnel,design of composite lining structure of a pressureless water tunnel in Lincang City,Yunnan Province was taken as an example,according to initial support and secondary lining structure.Internal force calculation of composite lining structure was carried out with load sharing ratio of 7∶3 for lining,and rationality and feasibility of adopting 7∶3 primary lining and secondary lining bearing ratio in design of composite lining structure were discussed.The internal force of secondary lining structure in composite lining structure of unpressurized hydraulic tunnel was analyzed in order to provide certain guiding significance and reference value for design and construction of the same type of water conveyance tunnel.

关 键 词：输水隧洞 复合衬砌 内力分析 

分 类 号：S276[农业科学—农业水土工程]