International Science and Technology Journal

Analysis of the stability of the rock slopes is important before and After cutting slopes (road cut), There are many factors that contribute to the collapse of the slopes and their Materials such as rain. The collapse of an industrial slope could be as a result of an invalid choice of the cutting angle by the executing company. This may lead to the collapse of the slope and its contents(Rocks, debris and soil). Considering the alhamra road leading to the QAWASEM city, where the collapse of the industrial slope and the rocks above it is noticeable. The case might be attributed to changing the cutting angle from (75° to 40° ) as a result of the rain fall. The aim of the this study is to evaluate the stability of slopes of the angles(40 ° and 75 °), and to calculated the Friction Angle value (Ø) and the Cohesion at varies water contents namely (5,15,30,50mm). also to evaluate the stability of the slope using a software program (rock plane 0.2). it was found that the stability of the (40°) angle is better than the (75°) angle, and its recommended to remove the blocks of Abogelan that is prone to collapse which is above Abosheba slope