关键词: 矿岩稳定性, 节理裂隙, 稳定性分级, 巷道支护

Abstract: In view of the safety hazards such as the deformation of roof and two sides caused by min⁃ ing and ground pressure in some roadways and mining areas in Houguanyinshan section of Hemushan Iron Mine，the stability of ore and rock in this mining area was investigated and analyzed. Combined with the ac⁃ tual situation of the mining area，Q system classification，RMR classification and national standard BQ classification were used to classify the survey results. The results show that the overall stability of the rock in the Houguanyinshan mine section is deviated，and the failure modes of some rocks are different. It is necessary to propose corresponding roadway support countermeasures. The research results are of great sig⁃ nificance to ensure the safe and efficient mining of the mining area.

Key words: ore-rock stability, joint fissure, stability classification, roadway support