关键词: 上行开采, 孤岛工作面, 数值模拟, 可行性研究

Abstract: The work of mining at the isolated island face has always been a difficult field in the coal mine management. According to the general situation of 31706 isolated island mining face which caused by 3上 mining in Henan, the deformation situation of the mining strata of the isolated island and the stress distribution situation are analyzed by the UDED software ,combing with the actual condition on site.The research results show that, the whole structure is not sustain the destruction when mining at island face, and the stress of the coal wall for both sides decreased significantly, in the meantime, the island face is in the internal of depressurization area, which making the elastic potential energy to release in island face. Finally, it is verification that it is very feasible to mine at the isolated island face under the special geological conditions.

Key words: Ascending mining, Isolated island mining face, Numerical simulation, Feasibility research