摘要
为研究老石旦煤矿031604综放工作面回采矿压显现规律,采用理论分析、数值模拟、现场实测研究手段,分析了综放工作面顶板扰动后破断特征及初采、正常回采、末采期间工作面矿压规律。结果表明:031604综放工作面顶板符合"O-X"型破断规律;初采期间煤壁片帮明显,中部最为严重、正常回采期间工作面直接顶随采随冒,支架安全阀开启次数较多、末采期间不放煤,按一次采全高组织生产。
In order to study the mining pressure law of the031604fully mechanized caving face in the Laohidan coal mine,the theoretical analysis,numerical simulation and on-site measurement research methods were used to analyze the breaking characteristics of the fully mechanized caving face after top plate disturbance and the working face mining pressure law in initial mining,normal mining and final mining.The results show that the top plate of the031604fully mechanized caving face meets the"O-X"type breaking rule;during the initial mining period,the coal wall slab is obvious,the middle part is the most serious,and the working face direct top inrushes with the mining during the normal mining period,the bracket safety valve is opened many times.During the final mining period,no coal is released,and the production is carried out at full height.
作者
司建军
SI Jian-jun(Shenhua Wuhai Energy Co.,Ltd.,Wuhai 016033,China)
出处
《价值工程》
2019年第1期102-104,共3页
Value Engineering
关键词
综放
FLAC3D数值模拟
矿压显现规律
fully mechanized caving
FLAC3D numerical simulation
mining pressure law
