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《The Chinese Journal of Geological Hazard and Control》 2015-02
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Numerical simulation of gas transport law in process of sealing fire zone

ZHOU Xihua;LI Chengyu;ZHANG Lili;SONG Dongping;MEN Jinlong;School of Safety Science & Engineering,Liaoning Technical University;Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education;Xinjiang Institute of Engineering;  
In order to study the gas transport law in the process of sealing fire zone,the flow field of fire zone was stimulated by COMSOL software. The change laws of velocity field,gas,CO and O2 concentration field in the center of vertical section in tunnel were studied,as average wind speed of the entrance was separately set as 1. 5 m / s、1 m / s、0. 5 m / s、0. 25 m / s and 0. 1 m / s. The results show: during the sealing fire zone,the maximum wind speed section gradually decreases with the falling of average wind speed at the entrance,thickness of back-flow layer,length of back-flow and maximum current speed rise with the declining of the average wind speed at the entrance; the highest gas concentration in the fire area and on the side of leeward goes up with the decreasing of the entrance average wind speed; the concentration of CO section located on the side of fire leeward and upwind ascends with the dropping of average wind speed at the entrance,the concentration of O2 section located on the side of fire leeward reduces with the falling of the entrance average wind speed. According to the results stimulated,we can determine the gas explosion danger area,it plays a guiding role in closing fire zone in practice.
【CateGory Index】: TD712.7
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Chinese Journal Full-text Database 3 Hits
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2 LIANG Yun-tao1,2,LUO Hai-zhu2(1.State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China;2.Fushun Branch,China Coal Research Institute,Fushun 113122,China);Current situation and development trend for coal mine fire prevention & extinguishing techniques in China[J];Journal of China Coal Society;2008-02
3 JIAO Yu1,ZHOU Xin-quan2,KANG Yu-tao1(1.College of Environment and Engineering,Shanghai Maritime University,Shanghai 201306,China;2.State Key Laboratory of Coal Resources and Safe Mining,China University of Mining & Technology(Beijing),Beijing 100083,China);Theoretical analysis and experimental study on backflow smoke of mine laneway wood fire[J];Journal of China Coal Society;2010-12
Chinese Journal Full-text Database 10 Hits
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2 JIN Xue-yu(Research Institute of Gas and Geology Management of Huainan Mining Group, Huainan, 232001, China);THE FAST METHOD FOR COAL UNCOVERING THROUGH ”STOPPING FLOW AND DRAINAGE” GAS[J];Journal of Anhui Institute of Architecture;2004-06
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4 SU Li-jun(Department of Exploration Engineering,Huainan Mining(Group) Co.,Ltd.,Huainan 232001);Study on Gas Storage Law and Effective Extracting Radius of Borehole in Deep Coal Seam[J];Journal of Anhui Institute of Architecture & Industry(Natural Science);2009-03
5 WANG Yi-guo(Xin Zhangzi coal mine,HuaiNan mining industry(Group)Co.,Ltd,HuaiNan AnHui,232001);Study on the technique of gas control during mining protected layer in short-distance coal seams[J];Journal of Anhui Institute of Architecture & Industry(Natural Science);2010-04
6 DING Shi-jie,FENG Shou-zhi(China Resources Tianneng Xuzhou Coal & Power Co.,Ltd.Xuzhou in Jiangsu 221008);Duct Monitoring and Numerical Simulation Study on "Three Zones" of Spontaneous Combustion during Simple Cutting of Top Coal Dropping in the Goaf[J];Journal of Anhui Institute of Architecture & Industry(Natural Science);2010-06
7 LU Qiu-qin, ZHOU Nan(School of Management, Xi' an University of Architecture & Technology,Xi' an 710055, China);An approach to gas migration simulation in heterogeneous goaf based on the lattice Boltzmann method[J];Journal of Safety and Environment;2009-03
8 CAO Zhi ming;A Study of Experiment on Ventilation Organization under Fire Mode in Qinling Tunnel[J];Underground Space;2003-02
9 YANG Qi-xin WANG Ming-nian ZOU Jin-jie (College of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China);Analysis on Character of Somke in Tunnel under Fire Model Test[J];Chinese Journal of Underground Space and Engineering;2008-03
10 XU Lin1,ZHANG Xu2 (1.College of Thermal Engineering,Shandong Jianzhu University,Jinan 250101,P.R.China;2.HVAC & Gas Institute,Tongji University,Shanghai 200092,P.R.China);Analysis on Effective Pressure Difference due to the Stack Effect for Sloping Tunnels[J];Chinese Journal of Underground Space and Engineering;2009-04
China Proceedings of conference Full-text Database 10 Hits
1 WU Xin,XU Jiang,TAO Yunqi,LU Qi(Key Laboratory for Exploitation of Southwestern Resources and Environmental Disaster Control Engineering,Ministry of Education,Chongqing University,Chongqing 400030,China);Study on The Influence of Pulverized Coal Particle Size Proportion on Coal and Gas Outburst Experiment[A];[C];2009
2 HAO Chengjun1, DI Zilu2, WANG Yan (1. Pingdingshan University , Pingdingshan 467002 ,Henan, China; 2. Science and technology association of Pingdingshan, Pingdingshan 467002 , Henan,China ) 2;Chemical Extraction of Active Ingredients of Gangue[A];[C];2010
3 Li Wen Wu Yuliang (Sichuan Province's Academy of Safety Science and Technology);The Dynamic Evolution Procession on Coal and Gas Burst[A];[C];2009
4 He Xilin Gao Mingtao Liu Canzhen Zhu Huanran (Shandong Xin Kuang ZhaoGuan Energy Limited Liability Company);Research on Prediction Technology of Gas Emission in Zhaoguan Mine[A];[C];2009
5 Chang Shengqiu Quan Shouguo (China Coal No.5 Construction Company,Xuzhou,Jiangsu,221600);Study and Treatment to Gas Outrush During Bottom Yard DevelopMent of Tunliu North Air Pit[A];[C];2007
6 ;Study on Gas Emission Regularity before Outburst in Heading Face[A];[C];2009
7 ;Complex Prevention and Control Techniques for Coal and Gas Outburst in Yangjia Coal Mine[A];[C];2009
8 ;Technical Progress of Direct Measurement Method for Coal-seam Gas Content in Our Coal Mines[A];[C];2009
9 Liu Jiying Lei Bo (College of Machinery Engineering,Southwest Jiaotong University,Chengdu,610031,China);Numerical simulation and analysis of smoke in tunnel fire test bed[A];[C];2007
10 LI Rong-kun (Chacheng Mine,Xuzhou Coal Mine Group,Xuzhou221142,China);Roadway along goaf technology in Chacheng coal mine coal mining practice[A];[C];2012
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 Xie Hongquan 1,2 Zhang Guangcan 1,3 (1.China University of Mining Technology Beijing campus, Beijing 100083; 2.Hebei Institute of Technology, Tangshan 063009; 3.Shandong Agricultural University, Tai'an 271018);Ecological Environment Effects and Administering Countermeasures of Coalmine Tips[J];Journal of Beijing Vocational & Technical Institute of Industry;2002-03
2 Tan Yingxin;Zhang Jinglin;Zhang Xiaochun(North China Institute of Technology);THE DETERMINATION OF EXPLOSION CHARACTERISTICS OF COMBUSTIBLE GASES (VAPORS)[J];Acta Armamentarii;1995-02
3 ZHOU Xinquan, WANG Haiyan, ZHAO Hongze China University of Mining and Technology, Beijing 100083. China;Rollback Law of Reverse Smoke Flow in a Horizontal Airway during Mine Fire[J];Journal of University of Science and Technology Beijing;2004-02
4 ZHANG Xinhai~(1,2), XI Guans~(1)), XU Jingcai~(2)), ZHOU Jinsheng~(3)), ZHANG Jian~(3)) 1) Energy and Power School, Xi'an Jiaotong University, Xi'an 710061, China 2) Energy School, Xi'an University of Science and Technology, Xi'an 710054, China 3) Shuangyashan Coal Group, Shuangyashan 155100, China;Partition of spontaneous combustion dangerous zone and prediction of spontaneous combustion based on numerically modeling the flow field at fully mechanized caving face[J];Journal of University of Science and Technology Beijing;2005-06
5 WANG Wen-cai1,HE Yuan1,LIU Yue-he2,LIU Yun-jie2(1.Mining Engineering School,Inner Mongolia University of Science and Technology,Baotou 014010,China;2.Adaohai Coal Mine,Shenhua Group,Baotou 014010,China);Study on methane emission law from the coal wall of driving gateway in Adaohai coal mine[J];Journal of Inner Mongolia University of Science and Technology;2009-04
6 LIANG Bing,LI Ye(Department of Mechanics and Engineering Sciences,Liaoning Technical University,Fuxin 123000,China);Numerical Simulation of Fluid-solid Coupling of Gas in Coal Face under Different Tunneling Technics[J];Journal of Disaster Prevention and Mitigation Engineering;2011-02
7 HOU San-zhong,LIU De-min,LI Jin-ling;Analysis on Influence of Seam Permeability Variation in Heading Face on Gas Emission[J];Mining Safety & Environmental Protection;2010-05
9 LI Zong-xiang,XU Duan-ping,LIU li-qun (Professional Technology College of Liaoning Technical University, Fuxin 123000, China );Study on numerical simulation about the dividon of spontanneous ignition“three bands”in operation goaf[J];Journal of Liaoning Technical University;2002-05
10 LI Zong-xiang, XIA Chun-lin, JI Chuan-ren ( Vocational College, Liaoning Technical University, Fuxin 123000, China );Information processing of arbitrary boundaries in goaf and automatic generation of finite element mesh[J];Journal of Liaoning Technical University;2004-03
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