Print Email Facebook Twitter Detection of soil variability using CPTs Title Detection of soil variability using CPTs Author de Gast, T. (TU Delft Geo-engineering) Vardon, P.J. (TU Delft Geo-engineering) Hicks, M.A. (TU Delft Geoscience and Engineering) Contributor Hicks, Michael A. (editor) Pisano, Federico (editor) Peuchen, Joek (editor) Department Geoscience and Engineering Date 2018-06-21 Abstract The variability of soil is well known to affect the geotechnical performance of structures. As probabilistic design methods become more commonly used, the ability to measure the variability of soil becomes more important. However, by using only the point statistics of soil parameters in design (e.g. the mean and standard deviation), typically an over-estimation of failure probabilities occurs, leading to over-conservative designs. By looking at the spatial correlation (e.g. scales of fluctuation) a more accurate representation can be achieved. This paper presents a method to use vertical Cone Penetration Tests (CPTs) to detect both the vertical and horizontal scales of fluctuation. An extensive numerical and experimental investigation has been undertaken to understand how spatial variation can be estimated and to quantify the accuracy in that estimation. The impact of being able to quantify the uncertainty is illustrated via a simple slope stability example. To reference this document use: http://resolver.tudelft.nl/uuid:1ce2181e-45a4-4ce3-848b-33ccf0670b34 Publisher CRC Press, London ISBN 978-1-138-58449-5 Source Cone Penetration Testing 2018: Proceedings of the 4th International Symposium on Cone Penetration Testing (CPT'18), 21-22 June, 2018, Delft, The Netherlands Event 4th International Symposium on Cone Penetration testing, 2018-06-21 → 2018-06-22, Aula Conference Centre, Delft, Netherlands Part of collection Institutional Repository Document type conference paper Rights © 2018 T. de Gast, P.J. Vardon, M.A. Hicks Files PDF 9780429000485_3.pdf 1.07 MB Close viewer /islandora/object/uuid:1ce2181e-45a4-4ce3-848b-33ccf0670b34/datastream/OBJ/view