拱坝建成前后对临近导流洞衬砌的影响研究
Study on the Impact of Arch Dam on the Lining of Adjacent Diversion Tunnels Before and After Completion
赵珍 1李月娇 2王博3
作者信息
- 1. 杨凌职业技术学院 陕西杨凌 712100
- 2. 黑河黄藏寺水利枢纽工程建设管理中心 甘肃兰州 730000
- 3. 陕西省引汉济渭工程建设有限公司 陕西西安 710100
- 折叠
摘要
导流洞是在水电站、大坝等建筑物施工期导流排水的隧洞,造价昂贵且施工复杂,所以一般后期会与永久隧洞结合起来使用,因此需要确保其在各个时期的安全性和稳定性.通过研究分析拱坝修建前、拱坝修建完工、拱坝坝肩与坝基回填混凝土后、库区正常运行4种工况下临近坝体的导流洞附加应力的变化,得出了拱坝坝体建设及其运营前后各个阶段对临近导流洞衬砌安全稳定的影响情况,结论可以为其他类似工程的设计和优化提供一定的参考价值.
Abstract
Adiversion tunnel is a tunnel for diversion and drainage during the construction period of hydropower stations,dams and other buildings.It is expensive and the construction is complicated,so it is generally used in com-bination with permanent tunnels in the later stage.So it is necessary to ensure its safety and stability in various peri-ods.Through the study,it analyzes the changes of the additional stress of the diversion tunnels adjacent to the dam body under four working conditions:before the construction of the arch dam,after the completion of the construc-tion of the arch dam,after the backfilling of concrete on the arch dam shoulder and foundation,during the normal operation of the reservoir area,the impact of the construction of the arch dam body and each stage before and after operation on the safety and stability of adjacent diversion tunnel lining has been obtained.It provides a certain refer-ence value for the design and optimization of other similar projects.
关键词
导流洞/拱坝/附加应力/衬砌Key words
Diversion tunnel/Arch dam/Additional stress/Lining引用本文复制引用
基金项目
杨凌职业技术学院科技创新项目(ZK21-12)
出版年
2024
NETL
NSTL
万方数据