论文部分内容阅读
封闭火区启封前,对火区所处燃烧状态的准确判断至关重要,这在很大程度上决定着火区启封的成功率和安全性。通过地面钻孔向火区增氧,利用束管监测系统经由地面钻孔直达火区原火源点附近监测气体浓度变化,观测火区内火灾生成气体如CO、C2H4、C2H2等浓度没有上升趋势,据此判断火区火势确实已经处于熄灭状态,确保了火区启封一次成功。
Before the closure of the fire zone, the accurate judgment of the combustion status of the fire zone is crucial, which to a large extent determines the success rate and safety of the fire zone unsealing. Through the borehole drilling to the fire area oxygen, the use of beam tube monitoring system through the ground to direct fire near the source of fire to monitor the concentration of gas changes in the monitoring area fire fire generated gases such as CO, C2H4, C2H2 and other concentrations did not increase , According to determine the fire area has indeed been extinguished the fire, to ensure that the fire zone unsealed a success.