Analysis of Mine Pressure Manifestation and Roof Creep Characteristics in Fully Mechanized Coal Mines
In order to in-depth analysis of the mine pressure manifestation and roof creep characteristics of the fully mechanized coal mining face,a coal mine in Shanxi Province was selected as the research background.Based on geological data,coal rock samples were taken from the mine and indoor mechanical experiments were conducted.Then,based on experimental measurements,the basic mechanical parameters of the sample are determined,and the creep curve of the sample is plotted.The results show that the compressive strength of the coal mine sample increases with the increase of confining pressure,and the creep phenomenon changes significantly with stress and time.
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