Fracture Failure of Consequent Bedding Rock Slopes After Underground Mining in Mountainous Area

摘要: Underground coal mining in the southwestern mountainous area of China causes potential large-scale landslides. To prevent geohazards consequent bedding rock slopes after underground mining, deformation and failure configuration were determined by two landslides caused mining. Then, a prediction model for fracture was established validated physical modeling. The can analyze stress bending moment slope predict location slope. results Masangwan landslide showed that at 103.5 m as compared to actual slip length 114 m, with an error 10.5 m, relative 9.21%. has good effect. Physical modeling crack locations from similar appeared specific intervals further advancement mass distance boundary separation zone surface reached tensile limit when maximum threshold value, producing cracks. In addition, between result found be only 0.0352 m, 5.79%. A comparison proposed models predicted is consistent laboratory results. neglect impact environmental factors on development, such complex geological structure chemical transport water mass, resulting small Therefore, effectively reflect serve theoretical basis disasters