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 ›› 2020, Vol. 39 ›› Issue (8): 1120-1123.

• • 上一篇    下一篇

T型地下综合管廊电缆火灾数值模拟

安伟光1,2，王涛1，梁凯1，朱国庆1,2   

  1. 1. 中国矿业大学安全工程学院，江苏 徐州 221116；2. 中国矿业大学江苏省城市地下空间火灾防护高校重点实验室，江苏徐州 2 21116
  • 出版日期:2020-08-15 发布日期:2020-08-15
  • 通讯作者: 朱国庆（1968-），中国矿业大学安全工程学院教授。
  • 作者简介:安伟光（1986-），男，河北石家庄人，中国矿业大学安全工程学院副教授，博士，主要从事火灾安全研究，江苏省徐州市大学路1 号，221116。

Numerical simulation on cable fire in T-shaped underground pipe gallery

AN Wei-guang1,2, WANG Tao1, LIANG Kai1,ZHU Guo-qing1,2   

  1. 1. School of Safety Engineering，China University of Mining and Technology，Jiangsu Xuzhou 221116,China; 2. Jiangsu Key Laboratory of Fire Safety in Urban Underground Space，China University of Mining and Technology,Jiangsu Xuzhou 221116,China
  • Online:2020-08-15 Published:2020-08-15

摘要： 针对特殊结构的T 型地下综合管廊，运用FDS 软件模拟不同火源位置及风速条件下管廊内电缆火灾的蔓延情况，分析火灾发生后管廊温度场以及烟气蔓延情况。对T 型管廊内不同位置处起火的火灾危险性进行排序，得到管廊内部风速为1.5m/s 且电缆处于稳定燃烧期时，交叉口处的烟气层高度最低，发现T 型交叉口处的烟气特性，为T 型地下综合管廊消防设计提供参考。

关键词: T 型管廊, 电缆火灾, 数值模拟, 温度场, 烟气蔓延

Abstract: This paper focuses on the T- shaped underground pipe gallery. FDS software was used to simulate the spread of cable fire in the pipe gallery under different fire source locations and wind speed conditions. The temperature field of the pipe gallery and the spread behavior of smoke after the fire were analyzed. The fire hazards at different locations in the T-shaped pipe gallery were sorted.When the wind speed inside the pipe corridor is 1.5 m/s and the cable is in a stable burning period, the height of the smoke layer at the intersection is the lowest. The characteristics of smoke at the intersection of T-shaped pipe gallery were obtained. The results of this work can provide some reference for fire safety design of Tshaped underground pipe gallery.

Key words: T-shaped pipe gallery, cable fire, numerical simulation;temperature field;smoke spread