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Ventilation Simulation and Gas Safety Risk Assessment for Non Coal on Gas Tunnel Construction

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DOI: 10.23977/jceup.2023.051104 | Downloads: 13 | Views: 197


Jun Gao 1,2, Qianda Zhou 3


1 Department of Transportation of Inner Mongolia Autonomous Region, Hohhot, Inner Mongolia, 010010, China
2 National Railway Group Wu Guang High Railway Company, Wuhan, Hubei, 430212, China; Department of Civil Engineering, Tsinghua University, Haidian, Beijing, 100083, China
3 National Railway Group Wu Guang High Railway Company, Wuhan, Hubei, 430212, China

Corresponding Author

Jun Gao


The construction of underground tunnels generally includes characteristics such as large scale, difficult conditions, long construction period, and strong concealment. Therefore, in the construction of subway tunnels, there are often safety issues that affect the quality of the entire project. In the process of underground tunnel construction, various factors that affect its safety should be carefully analyzed based on engineering practice, and scientifically and reasonably selected to ensure the safety and quality of the entire project. At the junction of tunnels and gas tunnels, it is necessary to correctly apply safety management measures for gas tunnel construction, prevent gas accidents, strengthen the effectiveness of safety management measures, and enhance ventilation stability during construction. This article aims to address the above issues and construct a gas safety risk assessment system based on the NCM (normal cloud model). The experiment has proven that the safety risk assessment and discrimination results of gas leakage in the system are III-IV, which is consistent with the reality of high oil and gas content at the construction site, susceptibility to gas overflow, and high risk of tunnel excavation.


Gas Safety Risk, Construction Ventilation, Construction of Non Coal on Gas Tunnels, Gas Leakage


Jun Gao, Qianda Zhou, Ventilation Simulation and Gas Safety Risk Assessment for Non Coal on Gas Tunnel Construction. Journal of Civil Engineering and Urban Planning (2023) Vol. 5: 26-33. DOI:


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