随着煤矿向深部开采,一些矿井动力灾害既表现出煤与瓦斯突出的部分特征,又有冲击地压的部分特征,2种动力灾害互为共存、互相影响、相互复合,难以界定为单一灾害类型,为此提出煤与瓦斯突出、冲击地压复合动力灾害的概念。通过复合动力灾害一体化理论研究,揭示了复合动力灾害发生的统一机理,据此建立了统一失稳判别准则;基于现有动力灾害分类所存在问题,将动力灾害划分为4种类型,在此基础上,针对矿井复合动力灾害类型创新研发了钻屑法多指标一体化检测及煤体温度、煤体电荷实时连续监测设备,形成了复合动力灾害一体化分类分级预测技术;同时,提出了瓦斯抽采、深孔爆破断顶-破煤-断底卸压、煤层注水等消减瓦斯内能、释放煤岩弹性能的复合动力灾害一体化防治技术。

With the mining depth increase,some mine dynamic disaster shows the characteristics of both coal and gas outburst and rockburst. The two dynamic disasters are mutual coexistence,mutual influence and mutual composite. They are difficult to be defined as a single type of disaster. Thus,in this study,the concept of compound dynamic dis- aster of coal and gas outburst and rockburst was put forward. The unified mechanism of compound dynamic disaster was revealed,through the integrated theoretical research of compound dynamic disaster. Therefore,the unified criterion of instability was established. The dynamic disasters were divided into four types based on the exiting problems of cur- rent dynamic disaster classification. On this basis,for the type of mine compound dynamic disaster,the multi-target in- tegration testing equipment of drilling bits method and the real-time continuous monitoring equipment of coal tempera- ture and coal charge were innovated and developed. Also,the integrated classification and grading prediction technolo- gy of compound dynamic disaster were developed. For the mine compound dynamic disaster,the integrated prevention technology of compound dynamic disaster was proposed on the basis of intrinsic gas energy reduction and coal rock elastic energy release,which includes gas extraction,the deep hole blasting pressure relief of roof-coal-bottom break- ing,coal seam water injection,et al.