The importance of a proper risk management 090 plan for a safe use of the underground space in densely urbanised areas. Two case histories

Abstract

The application of the Risk Management approach to the identification and mitigation of hazards in urban tunneling is nowadays a common practice for the Designer who seeks the reduction of impacts when using the underground space. It demands the design to be developed using probabilistic methods, and the resulting outputs to be checked and, if necessary, optimized during execution using the Plan for Advance of Tunnel (PAT) methodology in an extended range of applications, including Building Risk Assessment (BRA). Recent experiences in New Delhi and Bangalore (India) required the use of the underground space to be deeply analyzed in order to adopt a proper risk management plan, to correlate different design constraints and safety requirements afferent to many technical fields.