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隧道建设(中英文) ›› 2010, Vol. 30 ›› Issue (S1): 133-137.

• 研究与探索 • 上一篇    下一篇

运营地铁内空气品质的计算模型及时空变化特性分析

杨伟超, 彭立敏, 施成华, 雷明锋, 赵丹   

  1. 中南大学土木建筑学院,长沙410075
  • 收稿日期:2010-05-04 出版日期:2010-08-14 发布日期:2010-08-25
  • 作者简介:杨伟超(1978—),男,河南许昌人,2009年毕业于中南大学桥梁隧道专业,博士,现从事隧道工程教学与研究工作。

Calculation Model and Variation Characteristics of Air Quality
in Operating Metro Works

YANG  Wei-Chao, BANG  Li-Min, SHI  Cheng-Hua, LEI  Meng-Feng, DIAO  Dan   

  1.  Department of Civil Engineering, Central South University, Changsha 410075
  • Received:2010-05-04 Online:2010-08-14 Published:2010-08-25

摘要:

采用室内污染物的多箱物理模型,建立地铁内空气污染物的平衡方程,并对其可靠性进行分析。结合地铁客流量随时间的变化规律,对站台和区间隧道内CO2浓度的变化特性进行分析和评价。结果表明:在地铁的正常运营时段,站台内污染物浓度比较稳定,且空气品质较好;而区间隧道内的污染物浓度随客流量变化而变化,且空气品质较差。增加新风通入量可整体提高区间隧道内空气的品质。

关键词: 地铁, 空气品质, 污染物, 通风

Abstract:

Indoor pollutant balance equation of operating Metro works is established by multibox model. The reliability of the equation is analyzed. The variation characteristics of CO2 concentrations in Metro stations and running tunnels are analyzed on basis of the timedependent variation rules of the passenger flows of Metro works. The analysis results show that the pollutant concentrations in Metro stations is stable and the air quality is good, while the pollutant concentrations in running tunnels vary with the passenger flows and the air quality is poor. The air quality in the running tunnels can be improved by increasing the fresh air supply.

Key words: Metro, air quality, pollutant, ventilation