摘要
为了确定某矿13074工作面的合理封孔深度,针对其处煤岩地质条件,利用数值模拟软件,分析13074巷道掘进以后周围煤岩体的应力和塑性区的变化规律,初步确定13074巷道两帮塑性区的范围,提出合理封孔深度建议,作为后期本煤层瓦斯抽采钻孔封孔深度的确定提供真实有力数据,为封孔奠定良好基础。
To determine the reasonable depth of hole sealing for No. 13074 working face, based on the specific geological condition, the numerical simulation software was used to analyze the stress of coal-rock mass and change of plastic zone after the driving. The plastic zone of the No.13074 working face was preliminarily determined and the reasonable depth of hole sealing was proposed, which could provide real data for hole sealing depth determination of gas drainage in later stage.
出处
《山西煤炭》
2013年第10期52-54,共3页
Shanxi Coal
关键词
封孔
合理封孔深度
数值模拟
瓦斯抽采
hole sealing
reasonable depth of hole sealing
numerical simulation
gas drainage
