复合岩层锚杆支护应力变化研究分析

Research Analysis on Stress Variation of Anchor Support in Composite Rock Formation

采用实验分析的方式,对锚杆进行复合岩层支护时应力的变化作用进行分析,选取单根锚杆由硬岩向软岩方向锚固作为实验的对象,采用相似材料模拟的方式进行分析。结果表明,锚杆复合岩层支护的应力分布与单一岩层的应力分布类似,在结构面形成广泛的压应力区域,提高支护的有效性。

Experimental analysis was carried out to analyze the role of stress changes when anchor rods were used for composite rock support,and a single anchor rod anchored from hard rock to soft rock was selected as the object of the experiment,and similar material simulation was used for the analysis.The results show that the stress distribution of anchor rod composite rock support is similar to that of a single rock formation,forming an extensive compressive stress area at the structural face and improving the effectiveness of the support.