Study and application of demonstration method for safe mining of island coal panel based on prevention of rock burst

In order to implement the regulations of Coal Mine Safety Regulations and Detailed Rules for Prevention and Control of Coal Mine Rock Burst on the safety demonstration of island coal panel mining in coal seam with rock burst,a demonstration method of island coal panel mining safety is proposed and applied in engineering. The results show that:the demonstration of safety mining for prevent rock burst of island coal panel includes the demonstration of the attribute of rock burst mine,the demonstration of rock burst type of island coal panel,the evaluation of rock burst risk level of island coal panel and the demonstration of ability to prevent rock burst of mine. According to the identification results of coal seam rock burst tendency and the evaluation results of coal seam rock burst risk,the rock burst attribute of coal seam is demonstrated,and then the rock burst attribute of mine is obtained. The types of rock burst are demonstrated according to the abutment pressure distribution of island coal panel. The engineering quantity of preventing rock burst is calculated based on the investigation of rock burst risk factors and evaluation of rock burst risk. The ability to prevent rock burst is demonstrated according to the allocation of institutions and personnel for rock burst prevention,the coverage capacity of monitoring system and the allocation of pressure relief equipment. Finally,the conclusion of whether the safe mining can be ensured is obtained according to the types of rock burst,rock burst risk level and the relationship between the ability to prevent rock burst and the engineering quantity of preventing rock burst.