乌鲁普斯克矿的围岩,特别是矿体下盘的硅质片岩和石英钠长斑岩,片理很发育。在这些岩石中掘进的巷道都是用钢筋混凝土锚杆(63.5％)、喷射混凝土(31.8％)或两者结合的方式进行支护。巷道通过的岩石属于中等稳固,但是很容易风化。由于巷道周围的岩石受破坏,出现大量裂隙,因此岩 Surrounding rocks of the Ulupsk mine, especially the siliceous schist and quartzite porphyry under the orebodies, are well-developed. The tunnels drilled in these rocks are all bolted with reinforced concrete bolting (63.5%), shotcrete (31.8%) or a combination of the two. Rocks that pass through the tunnel are moderately stable but easily weathered. Due to the destruction of the rock around the roadway, a large number of cracks appear, so rock