Study On Active Regularity Of Ground Pressure And Inducing Mechanism Of Coal Burst During Deep Ming In Jixi Coal Mines

With the increase of mining depth, both of the properties of coal and rock and mining environment become complicated, which result in the change of stress distribution of stope and mechanics phenomenon, it is meaningful to know the deep mine stress and the mechanism of rock burst. This paper focus on the typical deep mine of Chengshan located in Jixi mining area, conclude the law of deep mine pressure, use the method of microearthquake, electromagnetic radiation, conventical mine pressure monitor to analyse the characteristic deep mine pressure, discuss the happen law of typical rock burst, in view of energy theory, use numerical simulation to simulate and study the different burst elastic energy accumulation, it is concluded that the goaf is the main controlling factor of coal burst; This paper also adopt compositive index to analyse the coal burst danger of Chengshan middle and deep mining. The research result is meaning to site construction, it provide technology support for roadway arrange and safety control of surrounding rock.