摘要
巷道维护和冲击矿压问题是矿井进入深部开采后所面临的重要问题。以实际的工作面生产地质条件为基础,模拟分析了区段平巷不同尺寸煤柱对护巷煤柱、实体煤垂直应力及巷道变形的影响,探讨了深部开采护巷煤柱选择问题,研究结果对深部综放工作面巷道布置及支护参数的确定具有很好的参考价值。
Roadway supporting and rock bursting are important problems in deep mining. Based on practical geological conditions of a mining face, the influence of different dimension pillars in sectional horizontal roadway on the protection pillars, vertical stress of coal and roadway distortion is simulated with numerical method and the protection pillar selection in deep mining is analyzed. Research results provide excellent reference for the confirmation of roadway layouts and supporting parameters in deep full-mechanized caving mining face.
出处
《煤矿开采》
2007年第1期1-3,7,共4页
Coal Mining Technology
基金
国家自然科学基金(50490273
50474068
50074030)
国家重点基础研究专项经费(973)(2005CB221504)
教育部博士点基金(20030290017)资助项目
关键词
深部开采
综放工作面
护巷煤柱
数值分析
deep mining
fuU-meehanized caving mining
protection pillar
numerical analysis
