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探讨了岩石的蠕变现象及蠕变机制,分析了煤的微观结构,运用煤体三维蠕变本构方程,分析了深部矿井煤体蠕变机制。分析认为,研究深部矿井煤体的蠕变行为,应当从煤体固有特性加以分析;深部矿井煤体的裂隙发育特性、良好的瓦斯吸附性能、结构的不均匀性及煤体微裂隙破坏的累进特性几方面的联合作用是煤体发生蠕变的主要原因。
The creep phenomenon and creep mechanism of rock are discussed. The microstructure of coal is analyzed. By using the three-dimensional creep constitutive equation of coal, the creep mechanism of coal in deep mine is analyzed. The analysis shows that the study of creep behavior of deep mine coal should be analyzed from the inherent characteristics of coal; the fracture development characteristics of deep mine coal, good gas adsorption performance, structural heterogeneity and progressive micro-fracture damage of coal The combined effect of several aspects of the characteristics of coal is the main reason creep.