摘要
Combined with highway construction, the analysis on the relationship between tunnel construction and coal resource exploitation was processed, which was based on the research of rational exploitation depth of coal. 3D FEM numerical analysis for tunnel excavation was carried out according to engineering geological features of coal measure strata in the project area. Based on the analysis of displacement and stress of the surrounding rock in the tunnel after excavation, the characteristics for displacement and stress of the tunnel support structure were analyzed when the underlying coal bed was exploited with sublevel and full caving method. In addition, combined with the related code and standard, the economic and safe prohibiting exploited depth of the underlying coal bed was proposed, so that a scientific basis for tunnel construction of coal measure strata and reasonable exploitation of the mineral resources in complex geological conditions can be offered.