Inversion of Electrical Resistivity Tomography and Cone Penetrometer Resistivity Data to Map Quick Clay in Norway

摘要

Quick clay is highly sensitive marine clay deposited during the last glaciation found in North America and Scandinavia. Seeping rain and groundwater may turn marine clay into quick clay by reducing pore water salinity Quick clay can lead to serious landslides as it becomes nearly liquid at failure. Geophysical combined with geotechnical methods are promising to indicate quick clay, and hence potential landslide areas. Joint inversion of electrical resistivity and cone penetrometer resistivity data from a site in Norway with a history of quick clay sliding have been carried out. Surface-, borehole- and further laboratory measurements have further been found consistent within technical uncertainties.