广东水利水电Issue(7)：45-48,54,5.
基于三维温度场理论的水工隧洞冻胀特性分析
Analysis of Frost Heave Characteristics of Hydraulic Tunnels Based on Three-dimensional Temperature Field Theory
王纬一 1赵翠侠1
作者信息
- 1. 广东省水利电力勘测设计研究院有限公司,广州 510635
- 折叠
摘要
Abstract
Hydraulic tunnel is a key project in hydraulic engineering,which plays a role in regulating water resources.In order to expand its application area and enhance its service life,a three-dimensional temperature field theory was used to construct an analysis model for the frost heave characteristics of hydraulic tunnels,and the influence of frost heave characteristics on the structure of hydraulic tunnels was analyzed.The results showed that the faster the airflow velocity in hydraulic tunnels,the lower the temperature of the surrounding rock.During the experimental observation process,the lowest temperature of the surrounding rock in hydraulic tunnels could drop to-18.7℃.After 90 days of the experiment,the temperature of the surrounding rock dropped to its lowest point,with a maximum stress of-1.285 MPa and a minimum stress of-1.583 MPa at the arch waist.The increase in wind speed can also lead to a significant increase in frost heave stress in tunnel structures,with the maximum principal stress of the tunnel structure increasing by more than 0.3 MPa.The model designed for research can analyze the impact of frost heave characteristics on the structure of hydraulic tunnels.The analysis results of this model can be used to adjust the structure of hydraulic tunnels and improve their service life.关键词
温度场/水工隧洞/冻胀特性/热流Key words
temperature field/hydraulic tunnel/frost heave characteristics/heat flux分类
建筑与水利引用本文复制引用
王纬一,赵翠侠..基于三维温度场理论的水工隧洞冻胀特性分析[J].广东水利水电,2025,(7):45-48,54,5.
