Abstract:
With the emerging application of geotechnical asset management (GAM) and the increasing risks due to extreme events, resilience of geotechnical assets is a critical component that should be incorporated within GAM. Resilience is typically discussed from two stand points: 1) the ability to anticipate, prepare for, and adapt to changing conditions and withstand, respond to, and recover rapidly from disruptions of an individual asset under extreme event, or 2) the collective capacity of the network to withstand or recover quickly from extreme events. In this paper we will discuss a quantitative approach to define resilience at individual geotechnical assets and the resilience of a network including a heterogeneous population of geotechnical assets. The paper will include a discussion on the resilience parameters measured based on the asset’ s capacity under the different limit states. This will require a discussion on assessing the capacity of these assets during their service life. Following that the study discusses the concepts of propagating resilience from individual assets to assess the collective capacity of a transportation network. This will also discuss the interaction between different assets and how the deterioration of some assets can lead to amplified impacts of extreme events. The analysis procedures discussed in this study are based on quantitative risk analysis and management of in-service assets.