摘要
根据回头沟隧道的围岩温度实测数据,分析自洞口向内围岩温度与隧道外温度的变化趋势关系,以及同一断面距离洞壁不同深度的围岩的温度受硐室温度的影响大小。根据监测数据分析,确定季冻区回头沟隧道为防止冻融现象需做保温防护段的隧道长度为115 m。
Based on the measured data of surrounding rock temperature of Huitougou tunnel, me vanauon trend relationship between the temperature of the inner surrounding rock and the external temperature of the tunnel and in the same section, the influence of the chamber temperature on the temperature of the surrounding rock at different depths of the cave wall is analyzed. According to the analysis of the monitoring data, in order to prevent freeze-thaw, the tunnel length of insulation section of the tunnel in seasonal frozen zone should be 115m.
出处
《路基工程》
2018年第1期69-73,共5页
Subgrade Engineering
基金
吉林省交通厅科技项目:公路偏压隧道围岩稳定与施工方法研究(2014-4-1-10-2)
关键词
季冻区隧道
温度
温度变化
冻融
温度监测
tunnel in seasonal frozen zone
temperature
temperature change
freeze-thaw
temperature monitoring
