STUDY ON THE FRACTURE AND WEIGHTING OF MAIN ROOF UNDER COMPLICATED CONDITIONS IN LONGWALL MINIG

STUDY ON THE FRACTURE AND WEIGHTING OF MAIN ROOF UNDER COMPLICATED CONDITIONS

IN LONGWALL MINIG

何富连;梁袁;杨玉岷;凌标灿

【期刊名称】《煤炭学报：英文版》 【年(卷),期】1998(004)001

【摘要】To clarify and control the collapse and weighting of main roof in Iongwall mining is oneof the important research problems in ground control. Based on the results of physical modelexperiment and field measurement, the behaviour of main roof above trapezoidal goaf or with faultis studied in this paper. The fracture and weighting of main roof above trapezoidal goaf aredifferent from those above rectangular goaf. It depends on the mechanical relation between mainroof blocks whether the plate blocks of main roof on both sides of fault simultaneously break andcollapse. 【总页数】5页(25-29)

【关键词】长壁工作面;矿山压力;顶板管理;围岩控制;废矿 【作者】何富连;梁袁;杨玉岷;凌标灿 【

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ChinaUniversityofMiningandTechnology,Xuzhou221008;HuananCoilandElectricityCorporation,Huanan232171 【正文语种】英文