Due to the special geological conditions and the surrounding environmental conditions, the urban metro constructions are faced with greater technical difficulty and higher safety risk, which cause many kinds of safety accidents. Taking Beijing metro as the background, the characteristics of the metro project and the main safety risks have been analyzed, and a statistical analysis of accident cases caused by Beijing metro construction has also been made. According to the inducements, the accidents will be divided into 5 categories: accidents caused by pipeline leakage or rupture, bad geology-in...
