冲击地压的区域危险性预测

The Prediction of Danger Zone of Coal Burst

对砚石台煤矿地应力进行了现场测试。采用５种指标对该矿６＃煤层冲击倾向性进行了实验研究。通过煤体强度实验建立了其强度准则，并结合工程实际建立了能量判据。在此基础上，根据“三准则”机理模型，对该矿６＃煤层冲击地压的区域危险性进行了预测。

The measurement of in-site crustal stresses are carried out in Yan Shi Tai coal mine.The outburst-proneness of 6# coal seam are studied with five indexes. Based on the strength testing of coal,the strength criterion is set up. The energy criterion is put forward in the light of engineering practice.According to the 'three criteria' mechanical model,the prediction of danger zone of coal burst of 6# coal seam in this mine is carried out.