瓦斯隧道通风在线监测与动态分析预警研究

瓦斯隧道通风控制系统是利用自动瓦斯监测系统对隧道内施工环境监测和对通风设备运行状态进行控制,在实时检测隧道内CH4、CO、风速、温度等参数的基础上,将这些数据传送到地面监控室的计算机,计算机以检测到的环境参数为依据,对瓦斯隧道内通风状况进行动态分析与预警,为实时掌握瓦斯隧道通风安全状况提供了技术手段。梅岭关隧道的应用实际表明该系统提高了瓦斯隧道施工通风的管理水平,保证了隧道施工安全有效地进行。

A Study of the Online Monitoring,Dynamic Analysis and Pre-Warning of the Ventilation of a Tunnel with Gas

The ventilation control system of a tunnel with gas makes use of the automatic gas-monitoring system to monitor the constructional environment. Upon the basis of timely monitoring parameters related to CH4 ,CO,wind speed, temperature,etc. inside the tunnel,the detected data will be fed into the computer inside the monitoring room on the ground, which will make a dynamic analysis of the ventilation of the tunnel with gas, and give a pre-warning on the basis of the environment-related data detected, and thus provide an effective technical means for timely mastering the safety conditions of the ventilation of the tunnel with gas. The successful application of the monitoring system to the Meilingguan Tunnel shows that the monitoring system im- proves the ventilation-managing level during the construction of the tunnel with gas, and thus helps ensure the safe and efficient construction of the tunnel with gas.