深部矿山巷道岩爆倾向性预测及防治技术研究

Study on rockburst tendency prediction and prevention technology of deep mine roadway

在深部矿山开采过程中,由于高地应力及复杂地质条件,岩爆时有发生。利用多种岩爆判别标准,并结合层次分析-模糊综合评判深部岩体的岩爆倾向性,结合矿山实际情况,提出岩爆防治措施,并根据岩爆支护设计原则,设计了两种可行支护方案,分析应力集中部位、大小等参数以及破坏特征,与矿山原方案作对比,进行支护优化。结果可为矿山开采岩爆防治提供参考。

During the mining of deep mines,rock bursts occur from time to time due to high ground stress and complex geological conditions.Using a variety of rockburst criteria,combined with AHP-FUZZY comprehensive evaluation of the rockburst tendency of deep rock masses,and combined with the actual situation of the mine,rock burst prevention measures were proposed,and two types of feasible support plan were designed based on the rock burst support design principles.The stress concentration position,size and other parameters and failure characteristics were analyzed,the original plan of the mine was used to compare,and the support was optimized.It provides practical reference value for the prevention and control of rock burst in mining.