摘要
针对平煤十一矿己二采区煤岩动力倾向性进行了实验研究,测定出煤层的动态破坏时间TD、弹性能指数WET和冲击能指数KS,确定了该采区煤岩的冲击矿压等级,同时得到了煤岩孕冲-冲击破坏的电磁辐射(EME)现象的规律,确定了煤岩动力破坏的EME临界幅值和脉冲数,为实际生产中采取解危措施及效果检验提供了实验依据。
The paper had study on the dynamic tendency of the seam and rock in No. Ji - 2 mining section in No. 11 Mine of Pingdingshan Coal Mining Group. The dynamic failure time To, the elastic energy index WET and bump energy index Ks were measured. The paper determined the classification of the pressure bump for the coal and rock in the mining section. Meanwhile, the paper had obtained the law of the initial bump and bump failure. The paper determined the EME critical value and pulse numbers of the dynamic failure for the coal and rocks.
出处
《煤炭科学技术》
CAS
北大核心
2005年第11期49-51,共3页
Coal Science and Technology
基金
国家自然科学基金重大资助项目(50490270)
教育部博士点专项基金资助项目(20030290017)
