EAGE GeoTech 2024
Join us for a poster presentation in partnership with EDF. We'll discuss using geostatistical simulations of SPT data to assess the risk of soil liquefaction on a nuclear construction site based on dense Tertiary sands but locally showing looser lenses. Have your questions ready for our team!
3D modeling of Standard Penetration Test in the framework of assessing liquefaction risk
Poster session – April 10, 2024 – 3:20 pm – 4:20 pm
Authors: Pedram Masoudi (1), Hélène Binet (1), Cyril Simon (2), Baptiste Pelletier (2), Claire Faucheux (1), Frédéric Rambert (1), Yvan Assy (1)
(1) Geovariances
(2) EDF-DI-TEGG
Abstract:
This article presents an application of geostatistics at the geotechnical study phases before construction on a nuclear site. The site under investigation is on dense tertiary sands where the shallow depth layers may include some loose lenses from the point of view of geotechnics. Therefore, estimating the potentially liquefiable soil volumes to remove and substitute before constructing the nuclear power plant is decided. The liquefaction is studied by combining several geotechnical parameters. One of such parameters is the Standard Penetration Test (SPT). In this study, a 3D block model of SPT is constructed using the ordinary kriging method of interpolation, and the probability of SPT exceeding a threshold of 15 counts (simplified no-liquefaction criterion) is evaluated using Turning Bands Simulation (TBS). Accepting the risk of 30%, the results are mapped and visualized for the elevation of -10 m AOD, which is the base of the general excavation.
EAGE GeoTech 2024 – The Third EAGE Geoscience Technologies and Applications Conference
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