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作 者:胡光华[1]
机构地区:[1]霍州煤电集团有限责任公司辛置煤矿,山西霍州031400
出 处:《煤》2011年第10期3-4,15,共3页Coal
摘 要:大采高工作面顶板压力大,煤壁前方支承压力集中程度高,容易导致工作面出现煤壁片帮和冒顶现象,工作面矿压显现明显。同时由于加大采高、机械设备重型化,出现了支架—围岩系统控制和支架选型等问题。因此加强顶板矿压观测,分析大采高工作面矿压规律具有十分重要的意义。现以辛置煤矿2-102大采高工作面为研究对象,分析工作面回采期间矿山压力显现特征,研究了大采高工作面矿压基本规律。High roof with large mining face pressure,the coal bearing wall in front of a high degree of stress concentration,appear likely to lead to the coal face and the cave wall pieces to help phenomenon,pressure mine face appeared obvious.At the same time as increasing mining height,heavy-duty machinery and equipment,there has been support-rock system control and stent selection and other issues.Therefore,strengthening the mine roof pressure observation,analysis of large mining laws of rock pressure of high face of great significance.Sim is now home to a large coal mining height 2-102 face for the study,analysis,pressure mine face appeared during recovery characteristics of a large mining the basic law of the high pressure face mine.
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