Print Email Facebook Twitter Uncertainty in spatial average undrained shear strength with a site-specific transformation model Title Uncertainty in spatial average undrained shear strength with a site-specific transformation model Author van der Krogt, M.G. (TU Delft Hydraulic Structures and Flood Risk; Deltares) Schweckendiek, T. (TU Delft Hydraulic Structures and Flood Risk; Deltares) Kok, M. (TU Delft Hydraulic Structures and Flood Risk) Date 2018 Abstract Transformation models are used to infer geotechnical properties from indirect measurements. A site-specific transformation model can be calibrated with direct and indirect measurements from a site. When such a model is used, then spatial variability, measurement errors and statistical uncertainty propagate into the uncertainty of the spatial average, which is the variable of interest in most geotechnical analyses. This research shows how all components enter the total uncertainty of a transformation model for undrained shear strength from cone resistance. A method is proposed to estimate the uncertainty in the spatial average undrained shear strength, particularly focusing on the role of averaging of all spatially variable error components. The main finding is that if a considerable share of the measurement and transformation errors is random or spatially variable, the uncertainty estimates can be considerably lower compared to methods proposed earlier, and hence, characteristic values can be considerably higher. Subject geotechnical variabilitymeasurement errorSite investigationspatial averagestatistical uncertaintytransformation modelundrained shear strength To reference this document use: http://resolver.tudelft.nl/uuid:a91911f2-a350-4113-bee1-a67401beac50 DOI https://doi.org/10.1080/17499518.2018.1554820 ISSN 1749-9518 Source Georisk: assessment and management of risk for engineered systems and geohazards, 13 (2019) (3), 226-236 Part of collection Institutional Repository Document type journal article Rights © 2018 M.G. van der Krogt, T. Schweckendiek, M. Kok Files PDF 17499518.2018.1554820.pdf 2.67 MB Close viewer /islandora/object/uuid:a91911f2-a350-4113-bee1-a67401beac50/datastream/OBJ/view