顶煤损伤统计力学模型

Statistic mechanical model of top coal damage

假设煤岩微元强度服从 Weibull分布 ,分析了支承压力、煤层倾角、煤体力学性质对急斜放顶煤开采水平分段高度的影响 ,结果表明 ,损伤分析对确定水平分段这一关键技术参数有重要作用。

Supposed the micro unit strength of coal obeying weibull distributing,the influence on the height of horizontal subsection for the top coal caving to steep seam by the abutment pressure, coal seam pitch,mechanical property of coal was analyzed.The results show that the damage analysis plays an important role to the determination of horizontal subsection.It is a key technical parameter.