摘要
神东矿区榆家梁煤矿4-3煤层和4-2煤层为近距离煤层开采,通过建立FLAC数值模型,研究了4-3煤层工作面受4-2煤层工作面采空区的影响及4-3煤层工作面开采过程中的矿山压力显现规律,分析得出了4-3煤层工作面矿山压力受影响的范围及4-3煤层工作面垂直应力变化规律。
Yujialiang Coal Mine in Shendong coal mining area carry on coal mining in # 4-3 coal seam and # 4 2 coal seam, which are contiguous coal seams. On the basis of the establishment of a FLAC numerical model, a study is carried out on the impact of the face gob area in 4- 2 coal seam on the coal face in #4- 3 coal seam and the pattern of strata behaviours in the face in #4- 3 coal seam. Out of the analysis, the extent of influence of the rock pressure on the face in 4- 3 coal seam and the pattern of vertical stress changes in this coal seam are induced.
出处
《中国煤炭》
北大核心
2010年第2期49-51,共3页
China Coal
基金
中国矿业大学(北京)青年基金项目(2009QZ01)
关键词
近距离煤层
煤炭开采
矿山压力显现
垂直应力
开采影响
榆家梁煤矿
contiguous coal seam, coal mining, strata behaviours, vertical stress, impact of mining, Yujialiang Coal Mine
