Optimization of the layout and support measures of advanced support in roadway of Jinsheng Gulong Coal Mine

Taking the 1301 working face roadway of Jinsheng Gulong Coal Mine as the research background, the methods of theoretical derivation, numerical simulation and on-site observation are comprehensively applied to define the action interval of the advanced abutment pressure and the core zone of the support demand, and the influential zone of the advanced abutment pressure and advanced support area are determined according to the dynamic loading action.Numerical simulation results show that under the conditions of constant intensity of dynamic load source, the peak value of advanced abutment pressure shows a gradual rising trend with the shortening of the distance between the load source and the roadway.According to the analysis of the field observation data, the proposed support scheme follows the professional specification for the division of the advanced support area, and the implementation effect meets the requirements of the advanced support area for the support performance.