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隧道建设(中英文) ›› 2021, Vol. 41 ›› Issue (S2): 375-382.DOI: 10.3973/j.issn.2096-4498.2021.S2.048

• 规划与设计 • 上一篇    下一篇

石景山隧道抢险救援通风系统的应急优化与计算分析

杨立新1, 刘石磊2, 罗占夫2   

  1. 1. 中铁隧道局集团有限公司, 广东 广州 511458 2. 中铁隧道勘察设计研究院有限公司, 广东 广州 511458
  • 出版日期:2021-12-31 发布日期:2022-03-17
  • 作者简介:杨立新(1967—),男,河南漯河人,2002年毕业于西南交通大学,供热供燃气通风与空调专业,硕士,教授级高级工程师,现从事隧道与地下工程技术研究工作。E-mail: ziyang0012@sina.com。

Emergency Optimization and Calculation Analysis of Rescue Ventilation System in Shijingshan Tunnel

YANG Lixin1, LIU Shilei2, LUO Zhanfu2   

  1. (1. China Railway Tunnel Group Co., Ltd., Guangzhou 511458, Guangdong, China; 2. China Railway Tunnel Consultants Co., Ltd., Guangzhou 511458, Guangdong, China)

  • Online:2021-12-31 Published:2022-03-17

摘要: 为解决石景山隧道透水事故抢险救援过程中由于既有通风系统不合理,导致作业环境恶化,致使抢险救援工作无法正常进行的难题,对既有通风系统进行了应急优化,并对应急优化后的通风系统进行网络计算和通风效果持续监测。结果表明: 1)在现场可供选择使用的风机中, 223037 kW射流风机安设在横通道均无法满足左右洞的风量需求, 只有160 kW的轴流风机可以满足左右洞的风量需求,且洞内各区段的风速均满足最小风速的要求; 2)通风系统应急优化后,左右洞CO浓度大幅度降低,并持续保持在国家规定的标准浓度以下,通风效果显著,作业环境明显改善。

关键词: 隧道通风, 射流巷道式通风, 抢险救援, 应急优化, 通风计算

Abstract: During the rescue of Shijingshan tunnel flood accident, the working environment deteriorated due to the unreasonable ventilation system, and the rescue work could not be carried out normally. Therefore, the existing ventilation system is optimized in an emergency manner. Meanwhile, network calculation and continuous monitoring of ventilation effect are carried out for the ventilation system after emergency optimization. The results show that: (1) Among the fans available at the site, the 22 kW, 30 kW, and 37 kW jet fans installed in the transverse passage cannot meet the air volume demand of the left and right holes, and only the axial flow fans of 160 kW can meet the air volume demand of the left and right holes, and the wind speed in each section of the tunnel meets the minimum wind speed requirement. (2) After the emergency optimization of the ventilation system, the concentration of CO in the left and right holes is greatly reduced and keeps below the national standard concentration, the ventilation effect is significantly improved, and the operating environment is significantly improved.

Key words: tunnel ventilation, jet tunnel ventilation, tunnel rescue, emergency optimization, ventilation calculation