Research on parameter design of rock roadway support structure in deep area

The parameters of roadway support structure are of great significance to mine safety mining.In order to further understand the influence of support parameters on roadway stability under high ground stress level, this paper optimized the design of support structure parameters under three different surrounding rock conditions of Jiangjiayao Gold Mine under three different burial depths through theoretical analysis.Through theoretical analysis, different types of anchor rods, length of anchor rods, and thickness of sprayed concrete are optimized and compared for tunnel structural parameters.Finally, support methods such as anchor mesh+pipe joint anchor rods, and anchor spray+mortar anchor rods are selected for different surrounding rock conditions.The on-site results show that the support effect is good and could effectively control disasters such as rock falling.