Аннотация:Slip-surface roughness can control the velocity of landslides in soils.Field observations indicate that many landslides in soils move by gliding on slip surfaces.Slip surfaces have asperities, including broad steps, depressions, and bumps that can obstruct landslide movement.Landslides typically deform at the asperities in order to stay in contact with the slip surface.Slip-surface asperities can retard the movement of landslides in soils, as asperities retard the movement of temperate glaciers sliding on bedrock surfaces.
