Landslide Study of Lands in Quarrys. Case Chouf Amar - M’sila, Algeria

Abstract

Mining operations open induce risks of instability that can cause landslides and collapse at the bleachers slope. These risks may occur both during and after the operation phase. The magnitude of these risks depends on the mechanical and physical characteristics of the rock mass, the geometrical dimensions of ore bodies, their spatial arrangement and the state of the operated area. If security and technology measures are not taken into account for this purpose, the environment will be affected. Currently, land stability can be evaluated using analytical and numerical methods. These methods determine the safety factor which represents the ratio between the forces which tend to retain a volume of rock, bounded by the free faces of the slope and a potential fracture surface, and the forces which tend to set it in motion. In this article, an application is considered. It relates to the study of land and terraces, slope in the quarry of Chouf-Amar and the objective of this work is to assess these risks by analytical methods. The results obtained have allowed us to obtain an acceptable factor of safety and stability study of the quarry.