耿村煤矿特厚煤层综放开采顶煤放出率研究
|
摘要
针对义马矿区耿村煤矿三软、特厚煤层地质采矿条件,利用颗粒流PFC~(3D)数值计算软件,数值计算研究分层放顶煤和整层放顶煤开采条件下顶煤运动规律和顶煤放出率,优化放煤工艺参数。研究结论对于提高耿村煤矿综放面采出率具有一定的理论价值和现场指导意义。
Based on the geological and mining conditions of soft roof-seam-floor strata, and extremelythick coal seam in Gengcun coal mine of Yima mine area of China, by PFC~(3D) numerical calculation software of granular media,studied the law of top-coal movement and the recovery ratio of top-coal drawing under the conditions of the slice and full-seam top-coal caving mining, optimized the parameters of top-coal drawing technology. The conclusions have the certain theoretical value and field guidance in further improving the recovery ratio of top-coal on FTCM face in Gengcun coal mine.
Based on the geological and mining conditions of soft roof-seam-floor strata, and extremelythick coal seam in Gengcun coal mine of Yima mine area of China, by PFC~(3D) numerical calculation software of granular media,studied the law of top-coal movement and the recovery ratio of top-coal drawing under the conditions of the slice and full-seam top-coal caving mining, optimized the parameters of top-coal drawing technology. The conclusions have the certain theoretical value and field guidance in further improving the recovery ratio of top-coal on FTCM face in Gengcun coal mine.
引文
[1]孟宪锐,吴昊天,王国斌.我国厚煤层采煤技术的发展及采煤方法的选择[J].煤炭工程,2014,46(10):43-47.
[2]王金华.特厚煤层大采高综放开采关键技术.煤炭学报[J].2013,38(12):2 089-2 098.
[3]袁瑞甫,刘银先,李春杰.“三软”煤层综放开采避开动压沿空留巷方法及应用[J].河南理工大学学报:自然科学版,2016,35(5):612-619.
[4]郭文兵,王金帅,李圣军.浅埋厚煤层高强度开采地表移动规律实测研究[J].河南理工大学学报:自然科学版,2016,35(4):470-475.
[5]王家臣,张锦旺.综放开采顶煤放出规律的BBR研究[J].煤炭学报,2015,40(3):487-493.
[6]王家臣,陈祎,张锦旺.基于BBR的特厚煤层综放开采放煤方式优化研究[J].煤炭工程,2016,48(2):1-4.
[7]王家臣,宋正阳.综放开采散体顶煤初始煤岩分界面特征及控制方法[J].煤炭工程,2015,47(7):1-4.
[8]张勇,司艳龙,石亮.块度对顶煤放出率影响的数值模拟分析[J].采矿与安全工程学报,2011,28(2):247-251.
[9]张宁波,刘长友,陈玉明.不稳定厚煤层放顶煤开采煤矸流场规律的数值模拟研究[J].煤炭技术,2014,33(12):1-4.
[10]田瑞霞,焦红光.离散元软件PFC在矿业工程中的应用现状及分析[J].矿冶,2011,20(1):79-82,89.
[2]王金华.特厚煤层大采高综放开采关键技术.煤炭学报[J].2013,38(12):2 089-2 098.
[3]袁瑞甫,刘银先,李春杰.“三软”煤层综放开采避开动压沿空留巷方法及应用[J].河南理工大学学报:自然科学版,2016,35(5):612-619.
[4]郭文兵,王金帅,李圣军.浅埋厚煤层高强度开采地表移动规律实测研究[J].河南理工大学学报:自然科学版,2016,35(4):470-475.
[5]王家臣,张锦旺.综放开采顶煤放出规律的BBR研究[J].煤炭学报,2015,40(3):487-493.
[6]王家臣,陈祎,张锦旺.基于BBR的特厚煤层综放开采放煤方式优化研究[J].煤炭工程,2016,48(2):1-4.
[7]王家臣,宋正阳.综放开采散体顶煤初始煤岩分界面特征及控制方法[J].煤炭工程,2015,47(7):1-4.
[8]张勇,司艳龙,石亮.块度对顶煤放出率影响的数值模拟分析[J].采矿与安全工程学报,2011,28(2):247-251.
[9]张宁波,刘长友,陈玉明.不稳定厚煤层放顶煤开采煤矸流场规律的数值模拟研究[J].煤炭技术,2014,33(12):1-4.
[10]田瑞霞,焦红光.离散元软件PFC在矿业工程中的应用现状及分析[J].矿冶,2011,20(1):79-82,89.