摘要
目的 研究降低无轨运输方式施工隧道中空气污染的措施。方法 采用燃油添加剂 ,定期对施工机械进行维修和保养 ,减少发动机空档排气 ,将压入式通风口设置于距掌子面 8～ 10m处 ,保持通风管道密闭通畅致使有效送风。结果 隧道中有害气体CO、NOx及黑烟浓度至少降低 4 6 % ,55%和 4 2 %。
Objective To study measures of reducing air pollution in the tunnels which are used the method of trackless transportation to construct.Methods Using fuel additive; Maintaining the construction machines regularly;Reducing exhaust fumes in neutral position of the engines;The air vent is designed to up the bank by 8～10?m; Keeping the air conduct sealed and ventilation work effectively.Results Reduce the concentration of the pernicious gases,such as CO、NOx and black smoke at least by 46%,55% and 42%.Conclusion Adopting above mentioned methods can improve the pollution condition of construction environment obviously and simultaneously reduce the harm to the health of constructors.
出处
《铁道医学》
2000年第2期73-75,共3页
Railway Medical Journal
基金
铁道部科技专项经费资助项目! (J992 0 3 4 )
关键词
无轨运输
隧道施工
空气污染
环境保护
trackless transport
tunneled construction
air pollution
fuel additive
