基于数值模拟的综放工作面顶煤采出率研究  

Study on top coal recovery rate of fully mechanized caving face based on numerical simulation

作　　者：靳职鹏 JIN Zhipeng(Shuiyu Coal Industry of Fenxi Mining Industry Group Co.,Ltd.,Xiaoyi Shanxi 032300,China)

机构地区：[1]汾西矿业集团水峪煤业

出　　处：《山西化工》2019年第3期129-131,共3页Shanxi Chemical Industry

摘　　要：针对大采高综放工作面顶板及顶煤活动规律、顶煤冒放性影响因素及煤炭采出率问题,基于8105工作面的具体地质生产条件,运用理论分析、数值模拟、现场实测等研究手段展开研究,得出8105工作面机采高度选为4.0m较为合理,宜在机采高度4.0m条件下选用合理放煤工艺进行回采。并在现场应用中将顶煤回收率控制在80%以上,综合回收率控制在85%以上。In view of the roof and top coal activity regularity,caving influence factors and coal recovery rate of fully mechanized top coal caving face with large mining height,based on the specific geological production conditions of 8105 working face, theoretical analysis ,numerical simulation and field measurement are used to carry out research. It is concluded that it is reasonable to select the mining height of 8105 working face at 4.0 m,and the reasonable caving technology should be selected under the condition of mining height of 4.0 m. In the field application,the top coal recovery rate is controlled above 80%,and the comprehensive recovery rate is controlled above 85%.

关 键 词：大采高综放 顶煤运移规律 顶煤采出率 数值模拟 机采高度 

分 类 号：TD823.4[矿业工程—煤矿开采]