隧道钻爆法施工风流流场规律的数值模拟  

Numerical Simulation of the Airlow Field Rules in Tunnel Drill Blasting Construction

作　　者：蒋仲安[1] 李钿[1] 张哲 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083

出　　处：《工业安全与环保》2016年第8期53-55,60,共4页Industrial Safety and Environmental Protection

基　　金：国家自然科学基金(51274024)

摘　　要：为了解决公路隧道钻爆法施工粉尘浓度高的问题,以京昆高速公路辛庄隧道为研究背景,运用Fluent软件对风流流场分布规律进行数值模拟,并与现场实测的风速分布情况进行对比分析,模拟结果与实际数据基本一致。研究结果表明,当风筒出口风速为20m/s时,压入式风筒安装的最佳距离是距离掌子面40~50m,在这个范围内,最有利于粉尘的排出。In order to solve the high road tunnel drilling and blasting method of construction dust concentration problems,regarding Jingkun Highway Xinzhuang Tunnel as study background,the Fluent software is applied to conduct numerical simulation for the distribution of airflow field,also it is conducted comparative analysis with field measurement of wind speed distribution and the simulation results are conform to the actual data.The study shows that,when the duct outlet velocity is 20m/s,the optimal distance of push-duct installed is40~50mfrom the tunnel face and in this context,it is most conducive to the discharge of dust.

关 键 词：隧道 通风除尘 风流流场 钻爆法施工 风筒布置 

分 类 号：U455.41[建筑科学—桥梁与隧道工程]