FAILURE OF SHAFT CAUSED BY SPECIAL GEOLOGIC HAZARDS AND CORRESPONDING PREVENTION MEASURES

From the engineering-geological aspect, this article analyzes the deformation of surface soil under special geological conditions caused by mining activities, and both vertical frictional force and toppling force, which are caused by this deformation, may lead to shaft failure are also studied. At the end of this article it is concluded that the engineering-geological problems and corresponding prevention measures from the shaft failure should deserve special attention.