| Rock Stability occupy a very important position for Gob, with the increase of coal mining depth, should the poor stability of surrounding rock, it will affect the speed of coal mining and personal safety. In this paper Pingdingshan No.12 Mine typical dynamic pressure roadway concrete results based on the formation surrounding rock support technology for system Pingdingshan No.12 Mine of.Through the analysis of Gob-Status and surrounding rock support technology developments, the initial research to understand the characteristics of the paper and research.By Gob-basic characteristics and evolution of rock stress analysis, for Gob three typical roof collapse feature test study by Pingdingshan No.12 Mine 14-31010 surrounding rock face in the implementation of control scheme and effect analysis of surrounding rock stability analysis and control of key technology research has been deep. the project is not only to ensure the normal exploitation of the coal seam, and roadway maintenance effect effective analysis.Finally, the reason for the separation characteristics of the roof made valid explanation.Through physical simulation, numerical analysis software and the actual observation study proved effective for surrounding rock support can meet the normal exploitation of the coal seam, to ensure stability and normal roadway applications, to meet the control requirements of the deformation of roadway excavation and recovery time. |
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