CAJ | 학술논문

以武汉三阳路过江隧道为研究对象,利用Pathfinder数值模拟的方法,模拟盾构段交通拥堵情况下,纵向疏散口间距分别为80、100、120 m时,人员的安全疏散状况;并采用公式法计算三种不同疏散口间距时的疏散时间,将计算得全体疏散所需时间与计算机模拟时间比较.结果表明:三种不同纵向疏散口间距下的疏散时间分别为575、672、758 s,均满足安全疏散要求;公式求得的疏散所需时间与计算机模拟结果一致,且对于疏散口间距较小的情形公式计算得到的结果更准确;根据计算与模拟结果,提出盾构段纵向疏散口间距取100 m建议.
이무한삼양로과강수도위연구대상,이용Pathfinder수치모의적방법,모의순구단교통옹도정황하,종향소산구간거분별위80、100、120 m시,인원적안전소산상황;병채용공식법계산삼충불동소산구간거시적소산시간,장계산득전체소산소수시간여계산궤모의시간비교.결과표명:삼충불동종향소산구간거하적소산시간분별위575、672、758 s,균만족안전소산요구;공식구득적소산소수시간여계산궤모의결과일치,차대우소산구간거교소적정형공식계산득도적결과경준학;근거계산여모의결과,제출순구단종향소산구간거취100 m건의.
The purpose of this study is to find the best space between of evacuation exits in the highway shield tunnel. In this paper, a simulation study has been conducted for Wuhan Sanyangroad shield tunnel with Pathfinder. The people safety evacuation status was simulated at three different spaces of evacuation exits as 80 m, 100 m, 120 m under the condition of traffic jam in shield tunnel. Besides, the formula methods were also used to calculate the evacuation time in the three different spaces. Then the calculated results and the simulation results were compared and analyzed. The results show the evacuation time of three different conditions are 575 s, 672 s and 758 s, and which all meet the requirement of safety evacuation. The results also indicate the calculated results and the simulation ones are well consistent. What's more, the evacuation time calculated by formula is more accurate for smaller evacuation exits spacing. Depending on the results both calculation and simulation, 100 m is the most appropriate evacuation space for suggestion.