《地铁安全疏散规范》对在建地铁线的影响——以天津滨海新区轨道交通B1线一期工程为例

The Influence of Code for Safety Evacuation of Metro on the Built Subway Line——Taking Tianjin Binhai New Area Rail Transit Line B1 phase Ⅰ project as an Example

《地铁安全疏散规范》GB/T 33668-2017[1]于2017年11月1日正式实施,与《地铁设计规范》GB50157-2013[2]及《城市轨道交通技术规范》GB50490-2009[3]相比,增加了站厅公共区火灾事故下的安全疏散计算,对地铁安全疏散设计,具有重要的行业指导意义和实用价值。然而目前大部分城市在建地铁线并没有将该规范纳入项目设计标准中,出现这种情况的原因是什么呢?《地铁安全疏散规范》的实施对在建地铁线有多大的影响呢?本文以天津滨海新区轨道交通B1线一期工程(以下简称"B1线")为例,研究安全疏散规范对在建线的影响,为以后新建地铁线执行该规范提供参考。

The Code for Safe Evacuation o f Metro( G B/T 33668-2017) [1] was formally implemented on November1, 2017. Compared with the Code for Design of Metro(GB50157-2013)[2]and the Technical Code for Urban Rail Transit(GB50490-2009)[3],the calculation of safety evacuation under fire accident in public zone of station hall was increased,which is of great importance to the design of subway safety evacuation. It has guiding significance and practical value of the industry. However, most of the cities in the construction of subway lines have not included this specification in the project design standards, what is the reason for this situation? How does the implementation of the Code for Safe Evacuation of Metro affect the subway line? In this paper, Tianjin Binhai New Area Rail Transit Line B1 Phase I Project(hereinafter referred to as "Line B1")as an example to study the impact of Code for Safe Evacuation of Metro on the line under construction,to provide a reference for the implementation of the new subway line in the future.