中国科技核心期刊
美国化学文摘社(CAS)数据库
美国EBSCO学术数据库
日本科学技术振兴机构数据库(JST)
A mine in the transition from open-pit to underground mining is designed to use pillarless sublevel caving mining method.In order to ensure the safe production of mine and reduce the impact on the geography and environment around the surface,an ore extraction model was established with Flac3D mining software,and boundary conditions were introduced.The elastic-plastic changes in the mined-out area and the rock displacement were analyzed.The movement range of the rock was delineated,and the rock displacement angle was determined to be 65°.The simulation results can provide technical support for deep mining and safe production for mines.