深部不规则大孤岛工作面冲击地压预测与防治技术

Prediction of rock burst in deep,irregular and big island working face and control technology

以开滦唐山矿深部、形状不规则、大孤岛冲击煤层工作面为试验研究对象,研究了该地质开采条件下的冲击地压现象的发生机理、冲击地压预测与防治方法、工作面安全开采条件等;建立了深部不规则大孤岛工作面条件下冲击地压现象预测与防治理论体系。利用现场试验、计算机数值模拟和理论分析等手段,初步掌握了深部不规则大孤岛工作面复杂条件下冲击地压发生的机理、冲击地压预测方法,通过试验得到解决深部不规则大孤岛工作面冲击地压的新方法。

Taking the deep, irregular and big island working face with rock burst in Tangs- han Mining Branch Company of Kailuan Group as the research object, the paper studies the mechanism of rock burst phenomena under the geological mining conditions, rock burst predic- tion and control methods, and the safe conditions for mining＇s establishes the rock burst predic- tion and control theory system under condition of deep, irregular and big island working face. Based on field test, numerical simulation and theoretical analysis, the mechanism of rock burst and prediction methods under above complex conditions are preliminarily grasped, and a new method to control the rock burst in deep, irregular and big island working face is obtained.