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中文摘要：
在采用构建采动应力作用下的煤体变形场方程来研究煤与瓦斯突出预测敏感指标的过程中,需要对煤体的变形量及其演化方程进行研究.依据CT技术的层析分析法,通过扫描不同的层位,利用CT数字图像所表现出来的煤体密度变化量对煤体变形量进行量化分析,结果表明,在应力作用方向上,煤体的变形具有显著的差异性,煤体的变形量沿应力作用方向呈现近似指数关系衰减的特征,基于CT技术,利用煤体密度的变化来量化描述煤体空间动力变形演化过程的研究途径及方法是可行的,从而为研究煤体的动力变形演化过程提供了一条新的思路.
英文摘要：
In the process of founding the coal deformation field equation under the influence of mining stress to forecast the sensitivity index on coal and gas ouburst,the coal deformation quantity and the evolvement equation must be studied.Based on CT experiments,through scanning the different tiers,the quantity analysis of the coal deformation is performed with the coal density changing quantity indicated in the digital images by CT experiment.The result shows that the stress function direction has remarkable differences in the process of coal deformation,and the coal deformation quantity along the stress direction displays a decrease characteristic of the approximate index relation.It points out that using the coal density changing quantity to explain the evolvement process of the coal spatial dynamic deformation is a practical way and a new ideas for the researches.
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