针对深井综采工作面断层区域冲击灾害频发的现状,研究了断层区域力学作用机制,提出动静载叠加诱发冲击的原理.数值分析了综采工作面断层区域动静载叠加对巷道的冲击破坏效应,结果表明:工作面断层区域的高静载与矿震产生的高动载叠加,促使煤岩体所受应力超过其强度极限而发生失稳破坏;断层区域顶板断裂幅频中的主频成分主要分布在0~40 Hz.分析制订了冲击危险的控制对策,保证综采工作面断层区域安全回采.%To counter the situation of frequent occurrence of rock burst disasters in the fault zone, the mechanical action mechanism in the fault zone was studied and the theory of bursts induced by the superposition of the dynamic and static load was put forward. Numerical analysis was carried out on the effect of the superposition of dynamic and static load on the impact destruction of the roadway in the fault zone of the fully mechanized coal face. The results demonstrated that the superposition of the high static load in the fault zone and the high dynamic load induced by the mine shock bump promoted the destabilization and destruction of the coal-rock mass due to the stress surpassing its ultimate strength;the dominant frequency in the amplitude frequency of roof rupture in the fault zone was mainly distributed between 0 and 40 Hz. Finally, the control measures for the burst hazard were analyzed and formulated so as to ensure the safe coal mining in the fault zone of the working face.
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