Reliability Assessment of Pile-Founded T-Walls Considering Soil Spatial Variability in the Face of Flooding Hazards
Publication: ASCE Inspire 2023
ABSTRACT
The pile-founded floodwalls are critical civil infrastructure for the protection and mitigation of hazards due to flooding and sea level rise. The stability of the floodwall under potential flooding hazards is a very critical problem for the risk management of such infrastructure. However, most existing studies focus on the deterministic stability evaluation of floodwalls under hazard conditions. The geotechnical uncertainties, especially the soil spatial variability due to the complicated depositional environment, are generally not explicitly considered. This paper presents a study to explicitly consider the spatial variability of soil parameters for the reliability assessment of a pile-founded T-wall system. This reliability assessment was implemented in an advanced probabilistic framework integrating the subdomain sampling method, random field theory, and finite difference method. A case study of floodwalls is employed to demonstrate the proposed framework for the reliability assessment of pile-founded floodwalls. The results from this study can aid in the risk-informed decision for practitioners to assess the reliability of floodwalls in the face of flooding hazards.
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Information
Published In
ASCE Inspire 2023
Pages: 388 - 395
History
Published online: Nov 14, 2023
ASCE Technical Topics:
- Business management
- Case studies
- Disaster risk management
- Disasters and hazards
- Engineering fundamentals
- Floods
- Foundations
- Geometry
- Geotechnical engineering
- Hydraulic engineering
- Hydraulic structures
- Levees and dikes
- Mathematics
- Methodology (by type)
- Mitigation and remediation
- Natural disasters
- Pile foundations
- Piles
- Practice and Profession
- Research methods (by type)
- Spatial variability
- Structural engineering
- Structural members
- Structural systems
- Walls
- Water and water resources
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