Application Of Relieving Method In Safety And Stability Controlling On Deep Rock-burst Mining Roadway

The dissertation combines the characteristics of the surrounding rock deformation of the mining roadway in a 35003 working face of an impact-type deep well in Shandong Province with extremely serious deformation and deep high-stress soft rock which is easy to break and difficult to support.Based on the geological survey data of the mine construction,the physical and mechanical parameters of the relevant rock masses in the study area were determined.The deficiencies of the traditional high-stress soft rock roadway deformation control technology were compared and analyzed.And pressure relief mechanism;researched and designed the design scheme of impact-type deep mine mining roadway support and the layout of pressure relief holes;by using computer simulation technology,a geological model of computer simulation calculation in the study area was established,and the individual tunneling tunnel was simulated and analyzed.After the pressure was released by the drilling pressure relief technology,the stress and strain state of the surrounding rock of the mining roadway and the opening effect of the pressure relief hole were optimized;the optimal plan for the pressure relief support of the mining roadway in the 35003 working face of a certain mine in Shandong was optimized.The computer simulation technology was used to carry out numerical analysis and verification;in order to control the deformation of the surrounding rock within a reasonable range,to ensure that the coal mining work of the mine can be carried out safely and smoothly,and provided guidance for the safe and normal production of the mine.