高原隧道施工工程机械有害气体排放特性  

Emission characteristics of harmful gas from engineering machinery under tunnel construction in plateau regions

作　　者：谢尊贤[1] 朱永全[2] 赖涤泉[3] 赵冬[1] 韩现民[2] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055 [2]石家庄铁道大学土木工程学院,河北石家庄050043 [3]石家庄铁道大学机械工程学院,河北石家庄050043

出　　处：《长安大学学报（自然科学版）》2011年第6期105-110,共6页Journal of Chang’an University(Natural Science Edition)

基　　金：铁道部科技研究开发计划项目(2007G034)

摘　　要：工程机械在高原地区运行时有害气体(尾气)CO、HC等的排放量较大,为了给高原地区隧道施工等地下工程通风设计与污染控制提供科学依据,依托关角隧道工程,对高原隧道施工中所使用的装载机、挖掘机、自卸汽车等内燃设备所排放的有害气体进行了测试,并对测试结果采用多项式拟合的方法进行拟合。研究结果表明:高原环境下工程机械排放的有害气体(尾气)CO、HC排放量以指数方式变化,随着转速增大而增大;过量空气系数φa减小时排放量增大,反之,φa增大时排放量减小。In pleatu regions,the engineering machinery has more harmful emission such as CO and HC.In order to provide scientific basis for ventilation design and pollution control of the tunnels in plateau,based on the construction of Guanjiao tunnel,the harmful gas from the loaders,excavators and dump vehicles was tested,the emission characteristics of harmful gas from engineering machinery under tunnel construction in plateau regions was studied by the way of polynomial fitting.The results show that the harmful gas such as CO and HC from engineering machinery in plateau regions varies by the way of index,it grows with the increase of rotating velocity of engineering machinery.When excess air ratio reduces,emission goes up.When excess air ratio increases,emission falls.

关 键 词：机械工程 高原隧道 施工通风 工程机械 有害气体(尾气) 排放特性 

分 类 号：U455.3[建筑科学—桥梁与隧道工程]