Abstract

Each slope, of any stiffness, represents under some conditions a risk for the security of humans, of the buildings or the roads, because it can give place to a more or less fast landslide. The phenomenon of the landslide is regarded as a permanent natural danger met in all the countries of the world because the importance of its effects can generate human and material damage being able to amount to million dollars whose governments must pay much attention. The town of Kinshasa, the capital of the Democratic Republic of Congo, comprising more than 450 heads of very major erosions deserves a detailed attention or better a real assumption of responsibility. Consequently, some hilly areas risk to disappear in the next years because of their vulnerability to the landslide and gullying.