耿村煤矿特厚煤层综放开采顶煤放出率研究  

Study on Top-coal Recovery Ratio of Fully-mechanized Top-coal Caving Mining in Extremely-thick Coal Seam in Gengcun Coal Mine

作　　者：翟新献[1] 卢德芳 朱祥意 黄广帅[1] ZHAI Xin-xian1, LU De-fang2, ZHU Xiang-yi1, HUANG Guang-shuai1(1. School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China; 2. Gengeun Coal Mine, Henan Dayou Energy Company Limited, Yima 472300, Chin)

机构地区：[1]河南理工大学能源科学与工程学院,河南焦作454000 [2]河南大有能源股份有限公司耿村煤矿,河南义马472300

出　　处：《煤炭技术》2018年第6期14-17,共4页Coal Technology

基　　金：国家自然科学基金资助项目(51574110)

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 extremely- thick coal seam in Gengcun coal mine of Yima mine area of China, by PFC3D 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.

关 键 词：特厚煤层 综放开采 放煤步距 

分 类 号：TD822[矿业工程—煤矿开采]