缓粘结预应力技术在水工隧洞中的应用  

Application of Retard-bonded Prestressed Technology in Hydraulic Tunnels

作　　者：姚广亮 严振瑞 张武 朱维花 YAO Guangliang;Yan Zhenrui;Zhang Wu;Zhu Weihua(Guangdong Hydropower Planning&Design Institute Co.,Ltd,Guangzhou510635,China)

机构地区：[1]广东省水利电力勘测设计研究院有限公司,广州510635

出　　处：《广东水利水电》2024年第10期1-5,共5页Guangdong Water Resources and Hydropower

基　　金：广东省重点领域研发计划项目(编号:2019B111108001);珠江三角洲水资源配置工程科研课题(编号:CD88-GC02-2020-0034)。

摘　　要：为准确计算缓粘结预应力混凝土内衬受力情况,采用有限元法全面分析输水隧洞内衬在施工期、运行期和检修期等不同工况下的受力情况,明确内衬应力分布形态。计算结果表明,采用缓粘结预应力体系可实现内衬裂缝等级的控制,满足防渗要求。In order to calculate the stress situation of the retard-bonded prestressed concrete,the finite element method was used to comprehensively analyze the stress of the hydraulic tunnels under different working conditions such as construction,operation,and maintenance periods.The calculation results indicate that the use of retard-bonded prestressed system can achieve control of the crack level in the lining and meet the requirements for anti-seepage.

关 键 词：缓粘结 预应力混凝土 水工隧洞 

分 类 号：TV554.14[水利工程—水利水电工程]