Study into Damage Mechanics of Anchoring Reinforced Roadway in Jointed Coal-Rock Mass

Stability of rock structural engineering is the premise and important project for safety production in mine.Rock damage mechanics and computing software adapting different engineering conditions provide scientific theories and technological ways for studying rock engineering.Applying rock damage mechanics theory in this paper,we theoretically analyzed rock damage of supported jointed rock mass with bolt and anchor cable,built theoretical models of contributing stiffness matrix for anchoring reinforced jointed roadway with both bolt and anchor cable,and designed the optimal support scheme of jointed coal-rock roadway by applying ABAQUS mathematical software.In addition,we analyzed the damage features and summarized the damage evolutionary rules of supported rock construction.The results show that the optimized support scheme of rock construction engineering can be designed by applying rock damage theory and numerical methods to effectively control the damage scope and degree of surrounding rock.