發(fā)布時(shí)間：2018-05-01 10:05

  本文選題：隧道 + 人員疏散�。� 參考：《中國(guó)安全科學(xué)學(xué)報(bào)》2015年02期

【摘要】：為評(píng)估隧道發(fā)生火災(zāi)時(shí)人員疏散安全,有必要準(zhǔn)確計(jì)算隧道人員疏散時(shí)間。傳統(tǒng)經(jīng)驗(yàn)公式法的假設(shè)條件過于簡(jiǎn)單,而現(xiàn)有仿真模擬方法不能準(zhǔn)確地模擬人的復(fù)雜行為。建立改進(jìn)的經(jīng)驗(yàn)公式法,通過隨機(jī)輸入計(jì)算參數(shù)來模擬隧道人員疏散的動(dòng)態(tài)隨機(jī)過程,將疏散時(shí)間計(jì)算分解為多個(gè)階段,并考慮車輛及人員的隨機(jī)分布、火災(zāi)探測(cè)及人員反應(yīng)時(shí)間的計(jì)算、大客車乘客下車時(shí)間、人行速度的隨機(jī)輸入、以及隨人流密度變化的橫洞門通行能力等,使計(jì)算所得疏散時(shí)間更貼近實(shí)際。與其余方法對(duì)比分析表明,采用改進(jìn)的經(jīng)驗(yàn)公式法得到的計(jì)算結(jié)果與傳統(tǒng)經(jīng)驗(yàn)公式計(jì)算方法相比,計(jì)算精度有較大提高。
[Abstract]:In order to evaluate the evacuation safety of tunnel fire, it is necessary to calculate the evacuation time accurately. The assumptions of the traditional empirical formula method are too simple, but the existing simulation methods can not accurately simulate the complex behavior of human beings. An improved empirical formula method is established to simulate the dynamic stochastic process of evacuation of tunnel personnel by random input of calculation parameters. The calculation of evacuation time is decomposed into several stages, and the random distribution of vehicles and personnel is considered. The calculation of fire detection and reaction time, the time of passengers getting off the bus, the random input of pedestrian speed, and the capacity of cross portal with the change of passenger density make the calculated evacuation time more practical. The comparison with other methods shows that the accuracy of the improved empirical formula method is higher than that of the traditional empirical formula method.
【作者單位】： 北京工業(yè)大學(xué)建筑工程學(xué)院;
【分類號(hào)】：U458
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本文編號(hào)：1828849