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《China Civil Engineering Journal》 2012-12
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Escape distance and escape risk analysis in road tunnel fire condition

Xu Yong1,3 Liao Shaoming1 Li Weiping2 Men Yanqing1(1.Tongji University,Shanghai 200092,China;2.Zhejiang Transportation Planning and Design Institute,Hangzhou 310006,China; 3.Changzhou Institute of Engineering Technology,Changzhou 213164,China)  
Crowd evacuation and individual escape in road tunnel fire condition are affected by many factors,so the reliability of evacuation design is of more uncertainty.On the basis of statistical analysis results of tunnel evacuation simulation experiments and some risk management regulations,the Monte Carlo random numerical simulation experiment was conducted,and the relations between escape risk grades and escape distances were analyzed.It is concluded that the acceptable risk interval of escape distance in fire condition is(0,380] meters,the limited acceptable risk unacceptable interval is(380,445] meters.This results agree well with the distance interval of tunnel escape passage in domestic and overseas codes.and is of instructive significance to distance interval adoption of tunnel escape passage.Due to the complex factors(e.g.specific personnel loads and escape type) involving in the evacuation in tunnel,it should be emphasized that the design of the escape passages in road tunnel should take above factors into consideration instead of adopting some cerain upper limit/lower limit intervals rigidly.
【Fund】: 浙江省交通运输厅科技项目(2010H02);; 交通部钱江隧道科技项目(2009-353-333-340);; 国家自然科学基金(51078292)
【CateGory Index】: U458
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