【摘要】 采用数值分析方法 ,以锚杆及其锚固范围内顶板岩层作为支护体———锚岩支护体 ,通过分析锚岩支护体的承载特性 ,提出了以锚杆提高锚固岩层承载能力的幅度来衡量锚杆支护作用大小的方法 ,得到了反映锚杆支护作用与顶板锚固岩层变形之间的关系曲线 .更多还原

【Abstract】 The rock bolts and roof strata within the bolted height is taken as a bolt rock supporter in coal mine roadways. The behavior of the supporter and the effects of reinforcement in roof strata are analyzed by numerical simulation. It is pointed out that the support effect of roof bolts would be assessed as the increment of roof bearing strength induced by reinforcement. The study shows the relationship between the support effect of bolts and the deformation of roof strata bolted.更多还原