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| Citation: |
DING Cui. Numerical research on the influence of ventilation velocity on fire smoke distribution in bifurcated roadway[J]. Safety in Coal Mines, 2025, 56（1）: 93−99. DOI: 10.13347/j.cnki.mkaq.20231845
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In order to investigate the influence of ventilation velocity on fire smoke distribution in bifurcated roadway, the computational fluid dynamics (CFD) numerical method was adopted to simulate the fires located in upstream of main-roadway. The influence of ventilation velocity on the length of smoke backflow and the temperature distribution and CO mass concentration distribution in main-roadway and sub-roadway were analyzed. The results showed that the length of smoke backflow decreased linearly as the increasing of ventilation velocity. The average temperature at the height of breathing zone in sub-roadway was little higher than that in main-roadway downstream under different ventilation velocity condition, and the biggest temperature difference is 8 ℃. The relationship between ventilation velocity and the average temperature at the height of breathing zone in main-roadway downstream and in sub-roadway fitted in power function trend. The CO mass concentration difference between main-roadway downstream and sub-roadway decreased gradually as the increasing of ventilation velocity, and the smallest mass concentration difference was 9.25 mg/m3. The relationship between ventilation velocity and the CO average mass concentration at the height of breathing zone in main-roadway downstream and in sub-roadway fitted in power function trend. When the ventilation velocity is 1-3 m/s, the workers in the sub-roadway are less susceptible to fire smoke and toxic gases, and when the ventilation velocity is 1.5-3 m/s, the workers in the main-roadway downstream are less susceptible to fire smoke and toxic gases
| [1] |
鹿广利,田梦雅. 深井“T” 型巷道内火灾烟气流动特性的研究[J]. 矿业研究与开发,2020,40(11):106−111.
LU Guangli, TIAN Mengya. Study on the fire smoke flow characteristics in T-type roadway of deep well[J]. Mining ResearchandDevelopment, 2020, 40(11): 106−111.
|
| [2] |
薛彦平. 巷道分岔角度对火灾烟气蔓延的影响数值模拟[J]. 煤矿安全,2020,51(6):179−183.
XUE Yanping. Numerical simulation of effect of tunnel diverging angles on fire smoke flow[J]. Safety in Coal Mines, 2020, 51(6): 179−183.
|
| [3] |
李俊梅,刘闪闪,许鹏,等. 分岔角对地下道路火灾烟气蔓延影响模拟[J]. 消防科学与技术,2014,33(6):616−618.
LI Junmei, LIU Shanshan, XU Peng, et al. Smoke spread in urban underground traffic tunnel with diverging sections[J]. Fire Science and Technology, 2014, 33(6): 616−618.
|
| [4] |
范登鑫,何磊,雷波,等. 地铁正线隧道分岔段火灾烟气通风控制研究[J]. 制冷与空调(四川),2021,35(5):679−683.
FAN Dengxin, HE Lei, LEI Bo, et al. Study of smoke control in the bifurcation section of the main tunnel[J]. Refrigeration & Air Conditioning, 2021, 35(5): 679−683.
|
| [5] |
雷鹏,陈长坤,赵冬月. 纵向通风下分岔隧道火灾烟气蔓延特性及控制实验研究[J]. 铁道科学与工程学报,2022,19(7):2117−2124.
LEI Peng, CHEN Changkun, ZHAO Dongyue. Experimental study on smoke movement characteristics and control in branched tunnel fire under longitudinal ventilation[J]. Journal of Railway Science and Engineering, 2022, 19(7): 2117−2124.
|
| [6] |
陈长坤,焦伟冰,雷鹏,等. 分岔隧道火灾火源位置对临界风速影响的数值模拟分析[J]. 中国安全生产科学技术,2022,18(3):93−99.
CHEN Changkun, JIAO Weibing, LEI Peng, et al. Numerical simulation analysis on influence of fire source position on critical wind velocity of bifurcated tunnel fire[J]. Journal of Safety Science and Technology, 2022, 18(3): 93−99.
|
| [7] |
HUANG Y B, LI Y F, LI J M, et al. Experimental investigation on maximum gas temperature beneath the ceiling in a branched tunnel fire[J]. International Journal of Thermal Sciences, 2019, 145: 105997. doi: 10.1016/j.ijthermalsci.2019.105997
|
| [8] |
李智胜,蒋浩锴,高云骥,等. 分岔隧道火灾烟气流动特性研究[J]. 中国安全生产科学技术,2021,17(5):118−122.
LI Zhisheng, JIANG Haokai, GAO Yunji, et al. Study on flow characteristics of fire smoke in bifurcated tunnel[J]. Journal of Safety Science and Technology, 2021, 17(5): 118−122.
|
| [9] |
CHEN L F, MAO P F, ZHANG Y C, et al. Experimental study on smoke characteristics of bifurcated tunnel fire[J]. Tunnelling and Underground Space Technology, 2020, 98: 103295. doi: 10.1016/j.tust.2020.103295
|
| [10] |
CHEN L F, ZHOU S X, LAN Y J, et al. Experimental study on fire characteristics of the bifurcated tunnel under multi-directional ventilation[J]. International Journal of Thermal Sciences, 2023, 185: 108072. doi: 10.1016/j.ijthermalsci.2022.108072
|
| [11] |
丁翠. 火灾时期矿山通风巷道“特征环” 与“关键环” 的分布特征研究[J]. 中国安全生产科学技术,2017,13(8):55−60.
DING Cui. Study on distribution characteristics of “characteristic ring” and “key ring” in mine ventilation roadway during fire[J]. Journal of Safety Science and Technology, 2017, 13(8): 55−60.
|
| [12] |
李坤. 煤矿动态通风网络分析系统及继发性灾害发生规律[D]. 北京:清华大学,2010.
|
| [13] |
G HESKESTAD. The SFPE handbook of fire protection engineering (third edition)[M]. Quincy, MA: Society of Fire Protection Engineers, 2002.
|
| [14] |
何学秋. 中国煤矿灾害防治理论与技术[M]. 徐州:中国矿业大学出版社,2006.
|
| [15] |
丁翠. 基于CFD的公路隧道火灾烟气分布规律研究[J]. 工业安全与环保,2022,48(9):5−8.
DING Cui. Numerical research on fire smoke distribution in highway tunnels[J]. Industrial Safety and Environmental Protection, 2022, 48(9): 5−8.
|
| [16] |
孙丽青. 典型矿井巷道外因火灾烟气运移规律及主要影响因素研究[D]. 太原:太原理工大学,2018.
|
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