主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2024, Vol. 43 ›› Issue (9): 1298-1302.

• • 上一篇    

基于标准火灾曲线和热释放率的衬砌温度分布数值计算研究

王峰, 曾锦屏, 熊藤根   

  1. （西南交通大学 土木工程学院，四川 成都 610031）
  • 接受日期:2024-09-15 发布日期:2024-09-23
  • 作者简介:王 峰(1982- )，男，江西吉安人，西南交通大学土木工程学院教授，博士生导师，主要从事隧道火灾、通风方面的研究，四川省成都市金牛区二环路北一段111号，610031，wf1982625@163.com。

Numerical calculation of temperature distribution of lining based on standard fire curve and heat release rate

Wang Feng, Zeng Jinping, Xiong Tenggen   

  1. In order to find out the temperature distribution characteristics of the lining under fire, a one-dimensional numerical calculation method of heat transfer lining temperature was established based on the mathematical model of tunnel fire-lining radiative convective heat transfer. The HC standard fire curve and the fire condition of 30 MW fire heat release rate were calculated and analyzed. The results show that the maximum temperature of the standard fire curve is generally greater than that required by the current Chinese code. Using fire temperature as the boundary condition for the lining wall will significantly increase the temperature wad on the lining. The maximum temperature of the lining is 778 °C and 351 °C under the 2 hour HC fire curve and the 30 MW fire condition, respectively. The influence range and high temperature value of the lining inside the standard fire curve condition are significantly greater than those of the 30 MW fire condition.
  • Accepted:2024-09-15 Published:2024-09-23
  • Contact: 国家自然科学基金项目（52078429）

摘要： 为探明火灾下衬砌温度的分布特性，基于隧道火灾-衬砌辐射对流传热数学模型建立了衬砌温度数值计算方法，并对HC标准火灾曲线和30 MW火灾热释放率火灾工况进行计算分析。结果表明，标准火灾曲线最高温度普遍大于目前我国规范的要求。采用火灾温度作为衬砌壁面边界条件将显著增大衬砌温度荷载，2小时HC火灾曲线和30 MW火灾工况衬砌最高温度分别为778 ℃和351 ℃。标准火灾曲线工况衬砌内部的高温影响范围和高温值均显著大于30 MW火灾工况。

关键词: 隧道火灾；传热方法；热释放率；温度分布；性能化设计

Abstract: tunnel lining；heat transfer methods；heat release rate；standard fire curves；temperature characteristics