含瓦斯煤的突出模拟试验

根据煤与瓦斯突出综合作用假说和相似理论,提出了模型煤样突出和现场煤层突出的相似条件,研究了地应力、瓦斯压力和煤体物理力学性质对煤层突出破坏的发生、发展过程及其强度的影响,分析了模型煤样突出和现场煤层突出破坏的相似性,建立了煤层发生突出破坏的无量纲参数准则,为现场煤层突出危险性预测提供了新的方法和指标。

Simulated Outburst Test of Gas-bearing Coal

This paper,according to the synthetic action hypothesis and similarity theory of coal and gas outburst,puts forward the similar outburst conditions of model coal samples and actual coal seams,makes a study of the effect of gas pressure and the physic-mechanical properties of coal on the occurrence and progress of coal seam's destruction under outburst and its strength,analyses the similarity of destruction of model coal sample and actual coal seam under outburst,and sets up the non-dimensional criteria of outburst occurrence and destruction of coal seams. All of these provides new methods and indexes for outburst hazard prediction of actual coal seams.