【摘要】 根据煤与瓦斯突出的地质力学模型,设计了煤与瓦斯突出过程摩擦滑动模拟实验系统,对地应力、瓦斯、煤体结构等因素的作用机理进行模拟研究,发现在煤与瓦斯突出过程中存在粘滑失稳现象,其特征受多种因素影响;提出了煤与瓦斯突出的粘滑失稳机理;对煤与瓦斯突出中的振动波动、延期突出及突出间歇等现象进行了新的理论解释,指出煤与瓦斯突出粘滑失稳伴生的AE等物理现象对瓦斯突出非接触式连续预报有重要理论意义.更多还原

【Abstract】 Based on the geomechanics model of coal and gas outburst, a frictional sliding experimental system for coal and gas outburst is designed in order to simulate the influences mechanism from factors such as the stress, gas, and coal structures It is found that a stickslip and stabilitylosing phenomenon exists in the process of coal and gas outburst and this phenomenon is influenced by many factors The stickslip mechanism of coal and gas outburst has been proposed and a new theoretical explanation for vibrationfluctuation of outburst, delayed outburst, and intermittent in outburst is further put forward Physical phenomena such as AE, associated with the stickslip and stabilitylosing phenomenon during coal and gas outburst, are of important implications for noncontact, continuous predicting of the outburst更多还原