基于损伤分析的煤巷顶板变形及其影响因素

oof deformation of coal roadway and its influencing factors based on damage analysis

基于连续介质损伤理论,采用Weibull统计函数,进行合理的假设,给出顶板损伤本构方程,将煤巷顶板看作无限长板,依据相关薄板理论,给出基于损伤分析的顶板下沉量表达式,研究了影响顶板下沉的影响因素及其效应。

Based on the Continuum damage theory, the Weibull statistical function was used to make reasonable assumptions, and the constitutive equation of the roof damage was given.The roof of the coal roadway was regarded as an infinite plate. Based on the theory of the relevant thin plate, the expression of roof failing quantity was proposed based on damage analysis, the influence factors and effects of roof sinking were studied.