| PHYSICS AND ENGINEERING PHYSICS |
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Full-scale experimental study of a fire in an island subway station with a stepped hall |
| LONG Zeng1,2, LIU Chang1, YANG Yuxuan1, QIU Peiyun1,3, CHEN Jiacheng3, ZHONG Maohua1 |
1. Institute of Public Safety Research, Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
2. Beijing Key Laboratory of City Integrated Emergency Response Science, Beijing 100084, China;
3. Guangzhou Metro Group Co., Ltd., Guangzhou 510330, China |
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Abstract Fire-induced smoke spread in a subway station was studied using full-scale experiments for various fire scenarios in an island station with a stepped hall. The smoke diffusion was characterized by measuring some key parameters, such as the smoke temperature, smoke layer height, and smoke diffusion time, for fires in the platform hall and in the stepped hall fire for two fire loads. The results show that during the platform fire, the natural wind pressure from north to south caused smoke and heat to accumulate at the south end of the platform. The smoke layer just downwind of the 3# escalator was not stable with smoke inside the connecting channel. The fire in the stepped station hall resulted in less smoke near the northern entrance and the smoke did not spread into the connecting channel or the platform. These results provide experimental data for smoke control and exhaust designs of stations with the same structure.
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| Keywords
subway
stepped hall
fire
full-scale experiment
smoke diffusion
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Issue Date: 04 July 2020
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[1] 中国城市轨道交通协会. 城市轨道交通2018年度统计和分析报告[J].城市轨道交通, 2019(4):16-34.China Urban Railway Transit Association. Annual statistics and analysis report on urban rail traffic in 2018[J]. China Metros, 2019(4):16-34. (in Chinese)
[2] GIACHETTI B, COUTON D, PLOURDE F. Smoke spreading analysis from an experimental subway scale model[J]. Fire Safety Journal, 2016, 86:75-82.
[3] ZHONG W, YANG J P, PEI B A, et al. A study of smoke extraction strategies in a side platform with screen door[J]. Advanced Materials Research, 2011, 346:52-57.
[4] 何开远, 樊洪明, 赵耀华, 等. 岛侧地铁站台火灾烟气运动的数值模拟[J]. 工程热物理学报, 2010, 31(2):317-320. HE K Y, FAN H M, ZHAO Y H, et al. Numerical simulation on smoke flow in subway with island-platform and side-platform[J]. Journal of Engineering Thermophysics, 2010, 31(2):317-320. (in Chinese)
[5] GAO R, LI A G, HAO X P, et al. Prediction of the spread of smoke in a huge transit terminal subway station under six different fire scenarios[J]. Tunnelling and Underground Space Technology, 2012, 31:128-138.
[6] 张帆. 中庭式地铁车站火灾烟气控制设计优化研究[D]. 北京:清华大学, 2016.ZHANG F. Study on optimization of fire smoke control design in atrium subway station[D]. Beijing:Tsinghua University, 2016. (in Chinese)
[7] 李淑文. 站台与站厅同层地铁车站火灾实验研究[D]. 北京:清华大学, 2017.LI S W. Experimental study on fire in subway station with the same floor of platform and station hall[D]. Beijing:Tsinghua University, 2017. (in Chinese)
[8] 李炎锋, 杜修力, 李俊梅, 等. 地铁换乘站火灾中烟气控制及疏散研究[J]. 地下空间与工程学报, 2011, 7(3):587-592. LI Y F, DU X L, LI J M, et al. Study on smoke control and evacuation in fire scenarios of a transfer subway station[J]. Chinese Journal of Underground Space and Engineering, 2011, 7(3):587-592. (in Chinese)
[9] LUO N, LI A G, GAO R, et al. Smoke confinement utilizing the USME ventilation mode for subway station fire[J]. Safety Science, 2014, 70:202-210.
[10] 钟茂华, 张磊, 肖衍, 等. 地铁"T"形换乘车站通道火灾通风模式数值模拟研究[J]. 中国安全生产科学技术, 2017, 13(9):13-19. ZHONG M H, ZHANG L, XIAO Y, et al. Numerical simulation study on ventilation mode in case of corridor fire in T-shape transfer metro station[J]. Journal of Safety Science and Technology, 2017, 13(9):13-19. (in Chinese)
[11] 钟茂华, 刘畅, 田向亮, 等. 地铁同站台高架换乘车站火灾全尺寸实验研究:(2)站厅火灾[J]. 中国安全生产科学技术, 2018, 14(4):5-12. ZHONG M H, LIU C, TIAN X L, et al. Full-scale experimental study on fire in one-platform-interchange elevated metro station:(2) station hall fire[J]. Journal of Safety Science and Technology, 2018, 14(4):5-12. (in Chinese)
[12] 钟茂华, 肖衍, 胡家鹏, 等. 地铁同站台高架换乘车站火灾全尺寸实验研究:(3)站台火灾[J]. 中国安全生产科学技术, 2018, 14(6):14-20. ZHONG M H, XIAO Y, HU J P, et al. Full-scale experimental study on fire in one-platform-interchange elevated metro station:(3) platform fire[J]. Journal of Safety Science and Technology, 2018, 14(6):14-20. (in Chinese)
[13] 张苑. 地铁双岛式车站排烟系统设计的数值分析[J]. 消防技术与产品信息, 2014(4):15-19. ZHANG Y. Numerical analysis on the design of smoke exhaust system in double-island station of subway[J]. Fire Technique and Products Information, 2014(4):15-19. (in Chinese)
[14] 史聪灵, 钟茂华, 涂旭炜, 等. 深埋地铁车站火灾实验与数值分析[M]. 北京:科学出版社, 2009. SHI C L, ZHONG M H, TU X W, et al. Fire experiment and numerical analysis of buried subway station[M]. Beijing:Science Press, 2009. (in Chinese)
[15] NFPA. Guide for smoke management systems in malls, atria and large areas:NFPA92B[S]. Quincy, USA:National Fire Protection Association, 2009.
[16] 史聪灵, 钟茂华, 汪良旗, 等. 地铁车站及隧道全尺寸火灾实验研究(2):区间隧道火灾[J]. 中国安全生产科学技术, 2012, 8(8):28-34.SHI C L, ZHONG M H, WANG L Q, et al. Investigation of full-scale burning experiments in metro station and tunnel (2):interval tunnel fires[J]. Journal of Safety Science and Technology, 2012, 8(8):28-34. (in Chinese)
[17] 李建, 史聪灵, 陈长坤, 等. 地下岛式地铁站台火灾时全封闭屏蔽门开启模式研究[J]. 中国安全生产科学技术, 2016, 12(11):114-119. LI J, SHI C L, CHEN C K, et al. Study on switch modes of fully enclosed platform screen doors during fire in underground railway island-type platform[J]. Journal of Safety Science and Technology, 2016, 12(11):114-119. (in Chinese)
[18] 中华人民共和国住房和城乡建设部. 建筑防烟排烟系统技术标准:GB 51251-2017[S]. 北京:中国计划出版社, 2017. Ministry of Housing and Urban-Rural Development of the People's Republic of China. Code for design of sprinkler systems:GB 51251-2017[S]. Beijing:China Planning Press, 2017. (in Chinese) |
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2020,
Vol. 60
