采用自主研发的采动应力监测系统对梁北煤矿11141工作面进行采动应力实时监测,通过数值模拟及工程实践相结合的方法分析了工作面前方煤体采动应力的变化特征及规律。结果表明,梁北煤矿11141工作面前方煤体内部采动应力变化经过原始稳定期、缓慢增长期、快速增长期以及卸压期4个阶段;采动影响距离为100 m左右,应力峰值为35 MPa左右,应力集中区范围为10~30 m。 The self-developed mining stress monitoring system was used to monitor the mining stress of 11141 working face in Liangbei Coal Mine in real time. The variation characteristics and regularities of mining induced stress in front of working face were analyzed by numerical simulation and engineering practice. The results show that the change of mining stress in front of 11141 working face of Liangbei Mine passes through four stages of original stability period, slow growth period, rapid growth period and pressure relief period; the mining influence distance is about 100 m and the stress peak value is 35 MPa, stress concentration range of 10 ~ 30 m.