掘进机可控循环通风方法的研究

The Study of the Controlled Cyclic Exhaust Ventilation in Tunneling with a TBM

分析了掘进机产尘特点，提出了局扇抽出式通风辅以高效除尘风机的半循环通风新方法，并对风量配比、除尘效率、产尘量、与工作面粉尘浓度等进行了综合分析，试验证明，半循环抽出式通风方法可解决长距离、大产尘量巷道施工的通风与防尘问题。

The characteristics of dust generation in excavation with a TBM are studied. A new ventilation method - a half cyclic exhaust system with local fans and high efficiency dust collectors has been put forward based on a comprehensive analysis of air volume distribution, dust suppression efficiency, dust quantity and concentration, ＇rest results show that the new ventilation system can solve dust suppression problems existed in excavation of a lone dead end tunnel.