摘要
针对埋深785 m的冀南李庄矿一采区轨道巷两帮变形大、底鼓严重的问题,分析了原支护方案存在的问题,并应用数值模拟优化支护设计方案。现场工业性试验及矿压规律分析表明,新方案巷道两帮变形明显减小,底鼓得到有效的控制,底鼓量比优化前平均减少273 mm,满足矿井生产要求,为类似条件提供经验借鉴。
Based on large deformation and serious bottom heave problems in Lizhuang Mine with depth of 785 m, located in south Hebei Province, the existing problems of original supporting scheme was analyzed, using numerical simulation optimized the supporting scheme. Industrial field testing and strata behavior regularity analysis showed that the deformation in working slope reduced obviously and bottom heave was controlled effectively. The amount of bottom heave was decreased by 273mm average, which met the mining requirements, the technology provided experience and reference for similar mines.
出处
《煤炭与化工》
CAS
2014年第7期120-122,共3页
Coal and Chemical Industry
关键词
软岩巷道
底鼓
数值模拟
支护优化
soft rock roadway
numerical simulation
floor heave
support optimization
