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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2018, Vol. 37 ›› Issue (04): 15-20.DOI: 10.3969/j.issn.1674-0696.2018.04.03

• 桥梁与隧道工程 • 上一篇    下一篇

高海拔隧道热固型材料防冻保温层厚度的隔热效果仿真分析

王占宇，储江伟，刘秀   

  1. (东北林业大学 交通学院，黑龙江 哈尔滨 150040)
  • 收稿日期:2016-10-15 修回日期:2016-12-14 出版日期:2018-04-12 发布日期:2018-04-12
  • 作者简介:王占宇(1975—)，男，吉林集安人，副教授，博士，主要研究方向为寒区道路交通环境。E-mail：zywang77@163.com。 通信作者：储江伟(1962—)，男，江苏宜兴人，教授，博士生导师，主要研究方向为寒区道路交通环境。E-mail：cjw_62@163.com。
  • 基金资助:
    青海省交通科技项目(2013-07)

Simulation Analysis on the Thermal Insulation Effect of the Thickness of the Thermosetting Thermal Insulation Layer in High-Altitude Tunnel

WANG Zhanyu，CHU Jiangwei，LIU Xiu   

  1. (School of Traffic，Northeast Forestry University，Harbin 150040，Heilongjiang，P. R. China)
  • Received:2016-10-15 Revised:2016-12-14 Online:2018-04-12 Published:2018-04-12

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摘要： 在建立隔热层/衬砌/围岩的二维传热学分析模型基础上，基于二维稳态导热有限元分析方法对隧道围岩、衬砌温度场分布进行模拟仿真计算。首先，对地域环境年平均气温-3.5 ℃条件 下，不同设计厚度的热固性隔热料福利凯(FLOLIC FOAM)的防冻保温效果进行了分析；其次，对防冻保温层设计厚度为5 cm且隧道环境温度由-3.5 ℃下降至-10 ℃时，单位厚度隔热层防冻保 温导致的温差变化及其产生的隔热效果进行了对比；第三，当隧道环境气温从-3.5~-35 ℃范围变化且隔热层厚度为5 cm时，给出了可达到的防冻保温最低温度范围。

关键词: 隧道工程, 高海拔隧道, 防冻保温层, 隔热材料, 福利凯

Abstract: Based on the two-dimension heat transferring analysis model of the anti-freezing insulation layer/lining layer/surrounding rock，the contours of static temperature of surrounding rock and lining of the tunnel model was simulated with two-dimension steady-state thermal conductivity finite element analysis method.Firstly，under the condition of the annual average geographical ambient temperature at -3.5 ℃，the anti-freezing insulation effect of thermosetting thermal insulation material FLOLIC FOAM with different designed thickness was analyzed.Secondly，when the designed thickness of anti-freezing insulation layer was 5cm and the tunnel ambient temperature decreased from -3.5 ℃ to-10 ℃，the temperature difference caused by anti-freezing thermal effect of unit thickness of the thermal insulation layer and its heat insulation effect were compared.Thirdly，when the ambient temperature of the tunnel changed from -3.5 ℃ to -35 ℃ and the thickness of thermal insulation layer was 5cm，the minimum temperature range of anti-freezing and heat preservation was obtained.

Key words: tunnel engineering, high-altitude tunnel, anti-freezing thermal insulation layer, insulation material, FLOLIC FOAM

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