Fig. 1: Satellite images taken before and after the Brumadinho tailings dam failure and geotechnical cone penetration test (CPTu) data prior to failure.
From: The slip surface mechanism of delayed failure of the Brumadinho tailings dam in 2019
a Image of the Feijão dam prior to failure, studied cross-section and location of CPTu test. (Source: Google Earth 3D, image dated June 30, 2018) b Post-collapse image of the Feijão dam. (Source: Google Earth 3D, image dated July 30, 2022) c Profiles of pore pressure and tip resistance from the CPTu test showing the distribution of interlayered fine tailings layers (after18). d Map showing the dam location and impact area of the tailings mud flow. (Source: Google Earth 3D, image dated July 30, 2022). Note: Historical images of the dam were retrieved using the Google Earth Pro with the specific coordinates of 20°07'12.05” S latitude and 44°07'14.55” W longitude.
