摘要
为提高固体充填胶结沿空留巷的效果,以唐口矿9301充填工作面为工程背景,对固体充填胶结沿空留巷巷帮支护体进行优化设计研究。通过对巷帮胶结充填材料的泌水率、强度等性能进行试验,分析了充填料浆的基本特性与胶结充填材料配比之间的内在联系与规律,最终确定了唐口矿巷帮胶结充填材料的配比。通过在唐口煤矿9301充填工作面进行工业性试验表明,优化设计的巷帮胶结充填体具有快凝早强,接顶良好的特点,沿空巷道变形量得到了有效控制。
To improve the effect of gob-side entry retaining with solid cemented backfilling, we present optimum design of the support for laneway＇s side through taking 9301 backfilling mining face of Tangkou Coal Mine as the background. We analyze the inner link and laws between the basic characteristic of the filling slurry and the ratios of the cemented filling material through studying bleeding rate, strength of the cemented filling material, and select the best ratio of cemented filling material in laneway ＇s sides of Tangkou Mine. Experimental results on 9301 backfilling mining face of Tangkou Coal Mine illustrate that optimum design of the support for laneway＇s side has the features of fast setting, early strength and better packing quality, and the deformation of gob-side entry is effectively controlled.
作者
张升
刘洋
刘恒凤
姜淑印
刘治成
徐怀胜
ZHANG Sheng1,2, LIU Yang1,2, LIU Hengfeng1,2, JIANG Shuyin1,2, LIU Zhicheng1,2, XU Huaisheng1(1 .School of Mines, China University of Mining ＆ Technology, Xuzhou 221116, China;2.State Key Laboratory of Coal Resources and Safety Mining, China University of Mining ＆ Technology, Xuzhou 221116, Chin)
出处
《煤矿安全》
CAS
北大核心
2018年第3期48-51,共4页
Safety in Coal Mines
基金
江苏特聘教授资助项目(苏教师(2015)29号)
关键词
固体充填采煤
沿空留巷
胶结材料配比
巷帮支护体
变形量
solid filling mining
gob-side entry retaining
ratio of cemented filling material
support of laneway＇ s side
deformation
