Abstract: To control the safety risks more effectively, the classification management system and working mechanism of the safety risk management and control of rail transit engineering construction are proposed and established, and relevant technological innovations are presented. Furthermore, the multisource risk information integration of the management and control platform of rail transit construction projects based on mobile internet technology is established. Moreover, the automatic warning mechanism of shield construction realtime monitoring is proposed, and the safety risk earlywarning and testing methods of foundation pit tunnel engineering are developed. Through technology and management innovation, the timeliness and accuracy of information collection are improved, the efficiency of risk disposal is enhanced, and the difficulty of safety risk management is reduced. Thirteen years of implementation of the classification management system show that the Beijing rail transit construction safety risk classification control has achieved excellent results and achieved the safety management goal of "three eliminations and one reduction". Finally, the intelligent management of safety risks is proposed.

Key words: rail transit engineering, safety risk classification management and control, management innovation, technology innovation, application innovation