两硬煤层综采工作面顶板管理控制实践研究  

Praltical Study on roof management and contorl of fully mechanized coal faltin two hard coal seam

作　　者：胡跃青 

机构地区：[1]山西铺龙湾煤业有限公司,山西大同037100

出　　处：《煤矿现代化》2018年第3期7-8,共2页Coal Mine Modernization

摘　　要：阐述了坚硬顶板若不及时处理对工作面的不利影响,以141工作面为例,提出采用顶板预爆破来弱化顶板,同时给出了预爆破的具体参数并对预爆破效果进行了分析。认为,采用顶板预爆破对坚硬顶板进行弱化是可行的,能够较好的控制顶板垮落。Described the the main adverse effects of hard roof if not handled, taking the 141 working face as an example, proposed to weaken the roof by roof blasting, gave the blasting parameters,and analyzed the pre and pre blasting effect. It is considered that it is feasible to weaken the hard roof by roof pre blasting, and better control of roof collapse.

关 键 词：两硬煤层 坚硬顶板 预爆破 控制 效果分析 

分 类 号：TD327.2[矿业工程—矿井建设]