长大山岭隧道群无轨通风模块全工况风流品质保障分析及实践(含英文摘要)20121011修.docVIP

长大山岭隧道群无轨通风系统施工设计的全程表格选配法 张中厚 邓元发 张宝栋 （中铁二局股份公司，福州350700） 摘要：文章对于无轨通风配置施工设计计算采用了一种新方法：重型柴油引擎13工况的车架试验对应功率排放废气中有害成份的质量，根据无轨通风风流品质有害成份容许值再导算的需风量，再根据无轨设备按重载、空载、怠速三种运转状态，两类路面，三种坡率及四种行驶速度计算洞内实际功率和运行时间，分别计算独头1~7km各施工长度、坡率、各类型洞室断面隧道施工的开挖、爆破、支护三个循环工况的作业面加沿程的容许风流品质总需风量，形成工具性的水平洞室和斜井加水平洞室两张通风系统直观选配表。结合现场风流湿热、雾霾、风龄、通风系统现场管理系数，进行了通风路径与时段工况组合，射流与反吸式轴流风机组合，按正压、负压、导流受控循环通风三原理结合向莆铁路FJ-5B标山岭隧道群的具体情况进行了十种无轨通风风流品质保障模块的施工设计计算、分析和现场实践。 关键词：山岭隧道群 无轨通风 施工设计 表格选配法 The Analysis and Practice of Trackless Ventilation quality Guarantee Module under Full Working Condition in Mountain Tunnel Group Construction Zhang Zhonghou Zhang Baodong (China Railway Erju Co.Ltd Xiang-Pu railway FJ-5B Tender Section Headquarters, Fuzhou, Post Code 350700) Abstract: A more objective new method tally with the reality is used in the construction design compute of trackless ventilation configuration in the paper. The actual power and operation time in tunnel is calculated through the three operating conditions which are heavy-load no-load and idling , two kinds of pavement, three slope rate and four running speed. According to vehicle driving test of heavy duty diesel engines under 13 kinds of working conditions, it selects corresponding power of diluting the harmful ingredients to calculate the amount of wind that permissible value required. The air volume of each construction length ,slope rate, various types of cavity section of the tunnel construction’s three cycle working conditions whice are excavation blasting and support within 1～7km in one direction and the air flow quality permissible value along the path is calculated respectively. It forms two instrumental ventilation system match tables of level hole chamber and inclined shaft added. Combined with the humidity and temperature, fog haze, ventilation time and ventilation system site management coefficient of the on-site wind, it combines the ventilation path with the time interval working condition, and combines jets with reverse suction