某矿山新掘绕道上覆岩层稳定性分析.

In order to better integrate mineral resources in the mining area and improve mine production capacity and economic benefits, a mine plans to implement phase Ⅱ project construction（mining area Ⅱ） when the mineral resources of phase Ⅰ underground project（mining area Ⅰ） are to be nearly depleted. The paper carried out an engineering geological survey on the typical ore rock in the study area in order to demonstrate the impact of the construction of connecting roadway from mining area Ⅰ to mining area Ⅱ on the overlying rock layers of surface villages. Based on the results of on-site engineering geological survey, indoor rock mechanics test, and rock mass quality evaluation, the numerical simulation analysis research on the impact of newly excavated roadway on surface deformation is carried out. The results show that the excavation of the roadway connecting mining area Ⅰ and mining area Ⅱ only results in minus 10 mm surface displacement and will not damage the overlying rock layers of the surface villages. [ABSTRACT FROM AUTHOR]