摘要
基于矿区煤层赋存的地层条件,建立地质模型,进行有差分数值模拟,分析不同间距多煤层开采的沉陷特征,同时对比分析多煤层开采覆岩的位移量随间距变化的关系,揭示了不同间距多煤层开采覆岩破坏规律差异,为工程实践提供理论基础。
Based on the layer conditions of the researched mining coal,the engineering geological model is generated for finite element numerical simulation to find out the subsidence feature of different spacing multi-seam mining,as well as comparative analysis the relationship of multi-seam mining displacement of overlying rock with distance change.The differences in overburden failure law of different spacing-coal mining is revealed,providing a theoretical basis for engineering Practice.
出处
《中国矿业》
北大核心
2012年第7期73-75,共3页
China Mining Magazine
基金
江苏高校优势学科建设工程项目资助(编号:苏财教(2011)209号)
关键词
不同间距
多煤层开采
覆岩破坏
数值模拟
different spacing
multi-seam mining
overburden failure
numerical simulation
