Study on the Capability of City Gas Network to Resists the Engineering Geological Hazard Damage

Engineering geological hazard is one of the main factors that caused damage to the city gas network. The damage degree caused by engineering geological hazard which often happen in a short period is often much higher than that due to its long-term effects of corrosion, internal and external stress. In this paper, we have done a research on the capability of city gas network resists the engineering geological hazard damage. We did it from four aspects: the stability identification, safety design reliability evaluation, vulnerability assessment and fatalness evaluation. Through the Identification of engineering geological hazard danger sources, the quantitative treatment of relevant indicators and the establishment of evaluation models, we proposed a more comprehensive and quantitative assessment method to evaluate the capability of city gas network resists the engineering geological hazard damage.