Research on Gas Monitoring Technology in High Gas Tunnel of the No. 2 Danjing Tunnel 

Yangzhi LI 

Institute of Civil Engineering and Architecture, Chongqing Jiaotong University, Chongqing, 400074, CHINA 

Abstract: According to the specific circumstances of the No. 2 Danjing Tunnel in the second ring highway of Chengdu (eastern), This article introduces the types of gas tunnel disaster and condition, monitoring purpose and content, the list of No. 2 Danjing tunnel gas monitoring of key parts, through monitoring technology of the gas (including: gas automatic monitoring system, manual monitoring) for all the key parts of real-time monitoring, to ensure the safety of high gas tunnel construction. At the same time, this paper also accumulates valuable experience for the construction of similar projects in the future. 

Keywords: High gas; Tunnel gas; Monitoring technology