Abstract:
In order to effectively control the stability of surrounding rock and the capability of top coal caving for isolated working face containing fault, taking the geological conditions of 237 working face of a mine as the engineering background, the distribution state and variation laws of pressure field during caving process are simulated and analyzed by using 3DEC software. On the basis of this, the integrated control measures for rock burst are proposed. The results show that stress behavior in coal pillar near intake and return airflow roadways and coal body in front of caving face 20 m range is obvious. When the caving face is close to the fault, the high stress concentration is rapidly formed, which can induce rock burst easily. The comprehensive control measures of rock burst achieved good application effect through the practical test, and ensured the safety production of the mine.