摘要
以泉店煤矿的煤岩地质条件为基础,采用PFC2D数值模拟软件,模拟在近距离煤层联合开采时,上煤层未采和开采后对下煤层顶煤体的破坏情况,并监测在下煤层放煤过程中,其顶煤体特定层位的煤岩运移情况,最终得出顶煤的运移规律。
Based on the geological conditions of Quandian Coal Mine,numerical simulation software named PFC2Dwas adopted to simulate the damage to top coal of lower coal seam when combined mining upper coal seam or not in the close-distance seam,and the movement of specific seam on top coal was monitored as well during the lower seam caving so that the movement law of top coal was put forward.
出处
《中州煤炭》
2014年第4期10-12,共3页
Zhongzhou Coal
基金
中央高校基本科研业务费专项资金(2010QNA32)
江苏高校优势学科建设工程资助项目(PAPD)
关键词
近距离煤层
综放开采
顶煤运移
联合开采
close distance coal seam
fully mechanized caving
top-coal movement
combined mining
