摘要
济阳煤矿为了使2709N工作面回采时的材料巷得以保留下来作为2710N工作面开采时的材料巷,采用粉碎的煤矸石、粉煤灰和胶结料按一定比例配制的膏体材料对2709N工作面材料巷一侧的采空区进行充填形成巷旁支护体,巷旁支护体宽度为9 m。留巷后巷道稳定,满足使用要求,不仅减少了巷道掘进量,而且消耗了大量煤矸石并多回收资源6 226.5 t,取得了重大的经济价值。
In order to retain the material roadway of 2709N working face to be the material roadway of 2710N working face in Jiyang coal mine,the goaf along the material roadway is filled with paste material made of compounding crushed gangue,fly ash and binder material by a certain percentage to construct the roadway-side support,and its width is 9 m.The retained roadway is stability and can meet the using requirements.It not only reduces the amount of roadway excavation,but also consumes large amount of gangue,and recycling resources 6 226.5 t.It achieves significant economic value.
出处
《煤矿安全》
CAS
北大核心
2012年第12期94-96,共3页
Safety in Coal Mines
关键词
膏体材料
沿空留巷
巷旁支护体
paste material
gob-side entry retaining
roadway-side support
