关键词: 应力集中区, 强矿压, 电磁辐射, 卸压爆破

Abstract: According to the production and geological conditions of No.3 seam West 5 working face in Muchengjian coal mine，the vertical stress distribution in the process of mining was analyzed using FLAC^3D. Especially the advanced abutment pressure distribution law was analysis in detail，and the abnormal stress concentration region located a sharp corner of irregular coal pillar in front of working face tailgate，which vertical stress concentration factor is 2.75. Rockburst danger in abnormal stress concentration was monitored by electromagnetic emission (EME)，when the monitoring EME intensity value was bigger than the critical warning value 100mV，the coal materials relieve-shots were measured timely for weakening rockburst danger. Meanwhile，EME was used to check the effect until the monitoring index value was lower than the critical value. Finally，the safe production of working face was ensured.

Key words: Stress concentration region, Strong rook presure, EME, Relieve-shot