大采高综采端面煤岩块体冒落机理及控制研究

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英文篇名：Study on caving mechanism and control of coal and rock block in fully mechanized face with large mining height 作者：李铁良 英文作者：LI Tieliang;Lu'an Group Safety Instrument Testing Center; 关键词：大采高综采 ; 端面冒顶 ; 关键块体 ; 支架-围岩控制 英文关键词：fully mechanized mining with large mining height;;face roof fall;;key blocks;;support-surroundingrockcontrol 中文刊名：SDHW 英文刊名：Shanxi Chemical Industry 机构：潞安集团安全仪器测试中心; 出版日期：2019-02-15 出版单位：山西化工 年：2019 期：v.39;No.179 语种：中文; 页：SDHW201901022 页数：3 CN：01 ISSN：14-1109/TQ 分类号：70-72

摘要

针对典型大采高综采工作面的端面煤岩块体控制难题,首先从覆岩活动特点、原生裂隙及次生裂隙发展规律、端面关键块体的受力分析入手,研究了端面煤岩块体冒落的机理,进而制定了端面关键块体的平衡控制措施,并对现场管理提出合理化建议,保障了2502大采高综采工作面的高产高效生产。
        Aiming at the difficult problem of controlling end face coal and rock block in typical fully mechanized mining face with large mining height,the mechanism of end face coal and rock block caving is studied from the characteristics of overburden activity,the development law of primary and secondary cracks,and the stress analysis of key end face block,and then the balanced control measures of key block at end face are formulated,and reasonable suggestions are put forward for site management,which ensures the high-yield and high-efficiency production of 2502 large mining areas in fully mechanized mining face.

引文

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