摘要
城市地下交通联系通道的构造特点使其通风系统设计较常规公路隧道更为复杂。论证了在苏州火车站地下交通联系通道通风系统中设置通风竖井的必要性,利用两个竖井将整个通道分隔为两个气流控制区段,通过对不同区段正常通风工况和火灾工况下的需风量的计算,考虑火灾排烟的有效性,将竖井设在环形通道的西北和东南两个对角处,其有效面积分别为10.6m^2和11.7m^2。
The ventilation system design of Urban Traffic Link Tunnel(UTLT) is much more complex than general road tunnel.The necessity of ventilated shaft application in ventilation system of Urban Traffic Link Tunnel in Suzhou railway station was demonstrated.The whole UTLT was divided into two airflow control sections by ventilated shafts.The required airflow in normal ventilation situation and fire situation of each section were calculated.Considering the smoke extraction availability,two ventilated shafts were set at the northwest and southeast corner of circular traffic link tunnel,whose active area was 10.2m^2 and 11.7m^2 respectively.
出处
《地下空间与工程学报》
CSCD
北大核心
2009年第A6期1227-1231,共5页
Chinese Journal of Underground Space and Engineering
基金
铁道部科技研究开发计划项目(2006G007-A-1
2006G007-C-1)
关键词
地下交通联系通道
通风竖井
需风量
Urban Traffic Link Tunnel
ventilated shaft
required airflow
