羊东矿8266工作面矿压显现规律及支架适应性研究
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摘要
针对煤炭深部开采工作面矿压显现剧烈的问题,冀中能源峰峰集团羊东矿在开采8266工作面时,研究深部开采矿压显现规律,通过理论分析,论证深部开采条件下新型支架适应性,结合支架检测工作面阻力,总结出工作面周期来压步距为14～19 m,平均周期来压步距约为17.14 m,依据现场实测数据,工作面正常推采期间,直接顶基本随推采直接冒落,无悬顶现象,实现了安全高效回采。
Baed on the serious problem of mining pressure in the deep mining face, the law of deep mining pressure when mining 8266 working face in Yangdong Mine of Jizhong Energy Fengfeng Group was studied, and theoretically the new type of support under deep mining conditions was analyzed. Combined with the support to detect the resistance of the working face, the pressure step was 14 ～ 19 m in the working surface cycle, the average cycle to the pressure step was about 17.14 m, according to the field measured data, the normal mining period of the working face, it directly falled with the mining, and there was no overhanging phenomenon, with safe and efficient recovery mining.
Baed on the serious problem of mining pressure in the deep mining face, the law of deep mining pressure when mining 8266 working face in Yangdong Mine of Jizhong Energy Fengfeng Group was studied, and theoretically the new type of support under deep mining conditions was analyzed. Combined with the support to detect the resistance of the working face, the pressure step was 14 ～ 19 m in the working surface cycle, the average cycle to the pressure step was about 17.14 m, according to the field measured data, the normal mining period of the working face, it directly falled with the mining, and there was no overhanging phenomenon, with safe and efficient recovery mining.
引文
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[3]朱阳照.极碎围岩整修巷道锚注支护机理研究[D].邯郸:河北工程大学,2007.
[4]张志明.浅煤层保水开采技术研究[J].煤炭与化工,2015(10):73-74.
[5]任小明.范各庄矿首采工作面矿压规律及巷道变形控制[D].燕郊:华北理工大学,2007.