【摘要】 利用快速拉格朗日分析方法，单因素分析了工作面斜长和构造应力对煤层底板应力应变的影响。提出水平构造应力是煤层底板变形破坏不可忽略的重要因素之一。综合分析了煤层倾角、煤层埋藏深度、工作面斜长和构造应力影响下煤层底板的变形破坏规律，得到了煤层底板最大破坏深度计算公式。更多还原

【Abstract】 In this paper,by usage of Fast Lagrangian Analysis of Continua,analysis the coal seam floor′s stress and strain regularity influenced by the facing length and the construct stress.Point out that the horizontal structure stress is one of the important influence factors on the coal seam floor′s failure.And we comprehensively analysis the influence regularity of coal seam floor which is strained or distorted with the slop angle of coal seam,the depth of coal seam,the construct stress and the facing length,provide the equation of the coal seam floor′s failure depth.更多还原