地铁勘察中对地下不明气体的勘察与分析

Metro Survey of Underground Unknown Gas in the Survey and Analysis

在轨道工程勘察过程中发现存在地下不明气体,为确定气体成分,分布范围,危害程度等专门进行了气体专项勘察,勘察过程中对发现的不明气体进行了取样、分析化验确定了成分为氮气和极少烷类气体,确定了分布范围,对地铁暗挖施工提出了消除危害的建议。

In the process of rail engineering survey found underground unknown gas,To determine the composition of the gas,distribution range,damage and specifically deals with a special gas prospecting,Investigation to find the unknown gas in the process of the sample、Analyzed to determine the components in few nitrogen and alkanes gases,The distribution range is determined,The subway underground construction puts forward some Suggestions of eliminate the hazards.