煤与瓦斯突出物理模拟实验研究进展及展望

Advances and prospects in physical simulation of coal and gas outburst

煤与瓦斯突出严重威胁着煤矿的安全生产,由于现场煤与瓦斯突出具有突发性和危险性,因此物理模拟实验手段引起世界各主要产煤国的关注。查阅相关文献,对我国近三十年来煤与瓦斯突出物理模拟实验研究进展进行梳理,发现突出实验研究由一维受力、单一场、小尺度向多维多场多尺度过渡,实验装置整体性能得到极大提高。然而目前对于突出机理的认识仍然停留在定性解释的假说阶段,针对目前突出实验特点及其不足提出若干建议,以期通过突出实验探究其物理本质,从而形成突出危险性定量评价体系和突出理论判据,为现场煤与瓦斯突出的预测与防治奠定坚实的理论基础。

Coal and gas outburst has a serious threat to the safe production of coal mine.Physical simulation of coal and gas outburst receives more and more attention during the major coal production countries around the world.A lot of literatures were consulted in this paper,and advances in physical simulation of coal and gas outburst in nearly thirty years were summarized.It shows that the physical simulation of coal and gas outburst has the characteristics of multi-dimensions,multi-field,multi-scale,and the overall performance of the test device has been greatly improved.However,the understanding of the mechanism still stays in the hypothesis stage of qualitative interpretation.Some prospects were put up considering its shortcomings in order to explore its physical essence.Thus,the quantitative evaluation system of outburst danger and theoretical criterion can be formed,which provides a theoretical foundation for the prediction and prevention of coal and gas outburst in the field.