A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Multiple Pore Pressure Measurements to Reduce Uncertainties in Piping Risk Assessment of Levees
This paper addresses the use of spatially distributed hydraulic head measurements to reduce uncertainty in backward piping erosion (piping) failure assessment. Uncertainty and variability in soil characteristics and limited measurements propagate through failure analysis, leading to highly uncertainty probabilities of failure. This paper uses qualitative and quantitative observations collected from the Colijnsplaat levee stretch, in the Netherlands, to reduce soil characteristic uncertainty and overall uncertainty of failure. Bayesian updating was performed using observations of sandboils and spatial and temporal observations of hydraulic heads along a cross section. Both sets of observations increased the probability of clay uplift, sand heave, piping progression, and probability of total failure (if all three mechanisms occur).
Multiple Pore Pressure Measurements to Reduce Uncertainties in Piping Risk Assessment of Levees
This paper addresses the use of spatially distributed hydraulic head measurements to reduce uncertainty in backward piping erosion (piping) failure assessment. Uncertainty and variability in soil characteristics and limited measurements propagate through failure analysis, leading to highly uncertainty probabilities of failure. This paper uses qualitative and quantitative observations collected from the Colijnsplaat levee stretch, in the Netherlands, to reduce soil characteristic uncertainty and overall uncertainty of failure. Bayesian updating was performed using observations of sandboils and spatial and temporal observations of hydraulic heads along a cross section. Both sets of observations increased the probability of clay uplift, sand heave, piping progression, and probability of total failure (if all three mechanisms occur).
Multiple Pore Pressure Measurements to Reduce Uncertainties in Piping Risk Assessment of Levees
Bocovich, Carolyne (author) / Kanning, Willem (author) / Mooney, Michael A. (author)
Geo-Risk 2017 ; 2017 ; Denver, Colorado
Geo-Risk 2017 ; 66-75
2017-06-01
Conference paper
Electronic Resource
English
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