关角隧道施工中隔板与压入式通风组合方案通风设计参数的确定  

Design Parameters of Construction Ventilation Combining Middle Partition with Pressed Ventilation for Guanjiao Tunnel

作　　者：武金明[1] 

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070

出　　处：《兰州交通大学学报》2013年第3期118-121,共4页Journal of Lanzhou Jiaotong University

基　　金：铁道部科技研究开发计划(2007G034)

摘　　要：通过Fluent数值模拟软件针对4个掌子面施工通风隧道速度场进行模拟计算,根据规范要求,确定合理的通风参数.结果表明:采用直径为2m的风管,风管末端与掌子面距离不应超过25m,风管风速度为10m.s-1时,通风效果满足规范要求.该结论为现场通风方案的设计提供了理论依据.The construction ventilation with middle partition is used for inclined shaft and pressed ventila- tion for main tunnel in Guanjiao Tunnel. The velocity fields on construction ventilation for 4 working faces of Guanjiao Tunnel are simulated by using FLUENT software. According to the Technical Specification for Construction of Railway Tunnel （TB10204--2002） provisions, reasonable ventilation parameters are deter- mined. The simulation results show that distance between end of air duct and outlet to working face is less than 25 m. Air ducts wind velocity is more than 10 m ~ s-1. The conclusion can provide reference value for construction ventilation schematic design.

关 键 词：隧道施工 隔板通风 压入式通风 数值模拟 速度场 

分 类 号：U455.4[建筑科学—桥梁与隧道工程]