Objective To study measures of reducing air pollution in the tunnels which are used the method of tracklesstransportation to construct.
目的研究降低无轨运输方式施工隧道中空气污染的措施。
2
The main methods of mucking in tunnel construction with drill and blast method is track-bound transportation system and tracklesstransportation.
钻爆法施工时，隧道出碴运输的主要方式为有轨运输和无轨运输。
3
At the same time, it points out several problems on developing of brakes for the coal mine underground trackless auxiliary transportation vehicles that should pay attention to.