Stabilizing and Destabilizing Breaching Flow Slides

As a result of the dilation soil matrix, dense submarine sand slopes can temporarily be steeper than natural angle repose. These gradually fail by detachment individual grains and intermittent collapses small coherent wedges. The key question is whether steep disturbances in slope grow size (destabilizing breaching) or diminish (stabilizing thereby limit overall failure resulting damage. ability to predict breaching stabilizing destabilizing also crucial for assessment safety infrastructure hydraulic structures located along rivers, lakes, coasts. Through set large-scale laboratory experiments, we investigate validity an existing criterion determine mode (i.e., destabilizing). Both modes were observed these providing unique data analysis. It concluded that method has limited forecasting power. This was quantified using mean absolute percentage error, which found 92%. reasons behind this large discrepancy are discussed. Given complexity underlying geotechnical processes, more advanced methodologies required.