基于动力灾害属性鉴定的防治技术研究

Research on Control Techniques Based on Dynamic Disasters of Property Identification

针对深部开采矿井冲击地压和煤与瓦斯突出复合型动力灾害愈发严峻的问题,分析了动力灾害发生条件及其属性分类。以千米深井口孜东矿为例,对其首采区13-1煤层同时开展突出和冲击两种动力灾害属性鉴定及111303工作面重点防冲区采前预测,按区域措施先行、局部措施补充原则试验了"瓦斯预抽达标、注水降冲有效"及支架工作阻力在线监测、钻屑指标法预测危险、强化支护、控制回采速度等综合防治措施,生产实践表明,这些措施有效防治了应力主导型动力灾害,研究成果对类似生产矿井具有指导与借鉴意义。

The complex dynamic disasters of rock burst and gas outburst with coal in deep mine became more and more serious. Aimed at the situation, the occurrence conditions and properties classification of dynamic disasters were analyzed. Taking Kouzidong Mine with thousands meters deep as an example, the identification of two dynamic disasters with burst and outburst was conducted, as well as the pre- diction before mining the key prevention area in 111303 working face. According to the principles of regional policies beforehand and topical measures supplementing, the com- prehensive measures were tested~ such as ＂ gas extraction should reach standard, and water infusion should Be effec- tive＂~ online monitoring for support resistance, cuttings in-