摘要
本文对矿井中几种变形失稳现象:煤体冲击地压、矿震、顶底板冲击地压及煤与瓦斯突出,分别建立了煤岩体压缩、剪切、拉伸、固液耦合失稳模型及失稳判别准则,初步构画了矿井煤岩体失稳问题的框架.
In this paper, the authors have studied the mechanics of dynamatic failure problems, that is, instability problems, such as coal burst, roof-floor rock burst, mine earthquake, and coal-gas outburst, which occur in coal mine. The paper has established compressive, tensile, shear and fluid-solid instability models and criteria for coal burst, roof-floor rookburst mine earthquake, coal -gas outburst respectively.
关键词
矿井
动力破坏
煤岩体
失稳
变形
dynamic failure in coal mine
instability problems
the criterion of iustability
