特大采高综采工作面机尾冒顶治理技术

发布时间：2018-03-16 02:07

  本文选题：浅埋深煤层　切入点：特大采高综采工作面　出处：《煤炭科学技术》2016年04期 　论文类型：期刊论文

【摘要】：为了防治大柳塔煤矿52303大采高综采工作面机尾冒顶事故,采用理论分析、现场实测等方法分析了矿压显现异常、二次采动影响、推进速度慢、现场管理人员经验不足、过渡支架梁端距过大是52303工作面冒顶的主要原因,在此基础上提出采用马丽散材料加固煤壁及顶板、工作面冒顶较高区域充填罗克休材料、加强联络巷附近巷道支护等技术措施。现场应用结果表明:该措施及时改变围岩的松散结构,有效地防止了煤壁片帮和顶板冒落,提高煤岩体的整体强度,工作面推进过程中均未出现显著的冒顶、片帮事故,工作面顶板漏矸问题也得到了有效控制。
[Abstract]:In order to prevent and cure the caving accident of 52303 large mining height fully mechanized mining face in Daliuta Coal Mine, this paper analyzes the abnormal rock pressure appearance, the secondary mining effect, the slow speed of propulsion and the lack of experience of the field management personnel by using the methods of theoretical analysis and field measurement, etc. The main reason of roof fall in 52303 working face is that the end distance of transition support beam is too large. On this basis, it is proposed that the coal wall and roof should be strengthened with Marisan material, and Roxiu material should be filled in the higher area of roof falling in the working face. The field application results show that the measures can change the loose structure of surrounding rock in time, effectively prevent coal wall and roof from falling, and improve the overall strength of coal and rock mass. In the process of working face advance, there is no obvious roof fall, and the roof leakage and gangue problem have been effectively controlled.
【作者单位】： 神华神东煤炭集团有限责任公司大柳塔煤矿;
【分类号】：TD327.2
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本文编号：1617842