辛置煤矿2-104综放工作面顶煤运移规律及矿压特征研究

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英文篇名：Research on the migration law of top coal and the ore pressure characteristics of 2-104 fully-mechanized caving face in xinzhi coal mine 作者：姚建伟 英文作者：YAO Jianwei;Xizhi Coal Mine,Shanxi Jiaozhou Huozhou Coal and Electricity Group; 关键词：综放工作面 ; 顶煤运移 ; 矿压监测 英文关键词：Fully mechanized caving face;;The top-coal migration;;Mine pressure monitoring 中文刊名：MKXD 英文刊名：Coal Mine Modernization 机构：山西焦煤霍州煤电集团辛置煤矿; 出版日期：2019-04-01 出版单位：煤矿现代化 年：2019 期：No.150 语种：中文; 页：MKXD201903019 页数：3 CN：03 ISSN：37-1205/TD 分类号：59-61

摘要

为充分了解2-104工作面顶煤的运移规律及矿压特征,通过对顶煤的破坏机理进行分析,并在工作面回采期间对各类矿压数据进行监测。结果表明:工作面超前支承压力及支架初撑力对顶煤运移的影响较大,工作面合理的支架支护强度为6860～7500kN;工作面周期来压步距平均为18.4m,运输顺槽在超前工作面0～35m的范围内围岩变形较为剧烈,超前支承压力的最大值为16.3MPa,位于煤壁前方12m左右。
        In order to fully understand the migration law and mine pressure characteristics of top coal of 2-104 working face, the failure mechanism of top coal is analyzed, and various mine pressure data are monitored during stoping of working face. The results show that: the advance supporting pressure of working face and the initial supporting force of supporting stand have great influence on the movement of top coal. The reasonable supporting strength of working face is 6860～7500 kN. The average cyclic step distance of the working face is 18.4 m, the surrounding rock deformation in the transport trough within the range of 0-35 m in advance working face, and the maximum advance bearing pressure is 16.3 mpa, about 12 m in front of the coal wall.

引文

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