摘要
为探究建筑物发生火灾时火灾产物对人员疏散的影响,通过对建筑物模型的全尺寸数值模拟,提取火灾产物相关参数,引入人员疏散速度系数的概念,建立基于火灾产物影响条件下的人员疏散速度模型;提出一种全新的判定人员安全疏散方法,并针对火灾产物影响条件下的人员安全疏散情况开展数值模拟;同时,分析喷淋强度和排烟速率对人员疏散速度系数的影响。结果表明:相较于传统研究方法,基于疏散速度系数的火灾事故人员疏散模型,更能够反映真实火场中的疏散效果;同时,增设喷淋和排烟能有效地降低火灾产物对人员疏散速度的影响。
In order to explore impacts of fire products on personnel evacuation in the event of a fire in buildings,relevant parameters of fire products were extracted through full-scale numerical simulation of building model,concept of personnel evacuation speed coefficient was introduced,and an evacuation speed model based on effects of fire products was established.Secondly,a new method to determine safe evacuation was put forward before numerical simulation was carried out for such evacuation considering impacts of fire products.Meanwhile influence of spray intensity and smoke exhaust rate on speed coefficient was analyzed.The results show that the proposed evacuation model can better reflect evacuation effects in the real fire site than traditional research methods.And addition of spraying and smoke extraction can effectively reduce impacts of fire products on evacuation speed.
作者
叶成豪
刘月婵
孙超
蒋永清
王博
YE Chenghao;LIU Yuechan;SUN Chao;JIANG Yongqing;WANG Bo(School of Measurement-Control Technology and Communication Engineering,Harbin University of Science and Technology,Harbin Heilongjiang 150080,China;National Experimental Teaching Demonstration Center for Measuring&Control Technology and Instrumentation,Harbin University of Science and Technology,Harbin Heilongjiang 150080,China;School of Resources and Civil Engineering,Northeastern University,Shenyang Liaoning 110819,China)
出处
《中国安全科学学报》
CAS
CSCD
北大核心
2020年第6期142-151,共10页
China Safety Science Journal
基金
国家自然科学基金青年基金资助(11704090)
黑龙江省普通高等学校青年创新人才培养计划资助项目(UNPYSCT-2018207)
黑龙江省普通高校基本科研业务费专项资金项目(LGYC2018JC048)。
