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冰川冻土 ›› 2016, Vol. 38 ›› Issue (1): 121-128.doi: 10.7522/j.isnn.1000-0240.2016.0014

• 寒区科学与技术 • 上一篇    下一篇

高纬度寒区浅埋隧道的温度场及防寒抗冻探讨

周小涵1, 曾艳华1, 杨宗贤1, 杨昌贤2, 方伟2   

  1. 1. 西南交通大学 交通隧道工程教育部重点实验室, 四川 成都 610031;
    2. 铁道第三勘察设计院集团有限公司, 天津 300251
  • 收稿日期:2015-10-07 修回日期:2015-12-07 出版日期:2016-02-25 发布日期:2016-05-30
  • 通讯作者: 曾艳华,E-mail:zengyhua@163.com. E-mail:zengyhua@163.com
  • 作者简介:周小涵(1988-),重庆市忠县人,2012年在西南交通大学获硕士学位,现从事大型交通隧道的防灾救援技术与地铁结构计算研究.E-mail:zhouxh2008@126.com
  • 基金资助:
    国家自然科学基金项目(51278426)资助

Discussion of anti-freeze and frost resistance of shallow buried tunnels in high latitude cold region

ZHOU Xiaohan1, ZENG Yanhua1, YANG Zongxian1, YANG Changxian2, FANG Wei2   

  1. 1. Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China;
    2. The Third Railway Survey and Design Institute, Tianjin 300251, China
  • Received:2015-10-07 Revised:2015-12-07 Online:2016-02-25 Published:2016-05-30

摘要: 专门针对东北高纬度寒区浅埋隧道冻害机理的研究较少,对东北寒区隧道进行了现场温度实测,讨论了东北高纬度寒区浅埋隧道的冻害形成机理和防寒抗冻措施.现场温度实测表明,传统的保温措施无法保证隧道不发生冻害,合理的防排水措施是高维度寒区浅埋隧道的主要防寒抗冻方法.建议在高维度寒区浅埋隧道全长设置中心深埋水沟、排水盲沟和保温侧沟,在冻结深度很大和月平均气温极低的寒区隧道排水设计中建议尝试使用顶进中心深埋水沟的施工方法,以降低工程造价及提高施工安全.中心深埋水沟直径应在80cm以上,以保证维护的便利.根据洞口地形选择合理的出水口形式,且做好保温防冻措施.

关键词: 高纬度寒区, 浅埋隧道, 温度场, 防寒抗冻, 顶进法

Abstract: Study of freezing injury forming mechanism in shallow buried tunnel in high latitude cold region is lacked. The temperature field of cold region tunnel was measured locally. The freezing injury forming mechanism and antifreeze and frost resistance of shallow buried tunnel in high latitude cold region were discussed. The observations show that the shallow buried tunnel in high latitude region can't keep out of freezing injury using traditional heat preservation measures. The waterproof and drainage measures are the main anti-freezing methods of shallow buried tunnel in high latitude cold region. Full-length deep center ditches, sub-drains and side insulation ditches are advised to be used, with the diameter of above 80 cm of the deep center ditches. Pipe jacking method is advised to construct the center deeply buried ditches. The proper anti-freezing measures of the water outlet port should be chosen according to the terrain of the tunnel portal.

Key words: high latitude cold region, shallow buried tunnel, temperature field, anti-freezing and frost resistance, pipe jacking method

中图分类号: 

  • U453.6