Extension Assessment on the Risk of Excavation for Nanchang Metro Line 2

Abstract:

There are always the risks for subway construction in tunnel excavation and adjacent building safety, a detailed risk assessment is necessary to find out the main risk source to control project risk, guarantee the engineering safety and improve the investment benefit. This paper introduces the risk assessment on Nanchang metro, the main risk factors are found out by extension theory, which can provide reference to similar engineering construction.

Key words:tunnel excavation; risk assessment; extension theory; Nanchang metro Line 2