煤矸石代替粉煤灰充填的研究与应用
Research and Application of Using Coal Gangue Instead of Fly Ash in Filling
孔宏伟1
作者信息
- 1. 晋能控股装备制造集团晟泰公司,山西晋城 048000
- 折叠
摘要
"三下"压煤开采时,采用覆岩离层注浆充填工艺,通过注浆材料优化,对煤矸石和粉煤灰两种材料进行采样分析、地面沉降效果分析及经济效益对比,得出了采用煤矸石代替粉煤灰作为原材料进行覆岩离层注浆能够实现经济效益最大化的结论.
Abstract
During the"three down"coal mining,the process of grouting and filling of overlying rock separation layer was adopted.Through optimization of grouting materials,the sampling analysis,ground settlement effect analysis and economic benefit comparison were conducted on coal gangue and fly ash,and the conclusion was drawn that using coal gangue instead of fly ash as raw material for overlying rock separation layer grouting can achieve maximum economic benefits.
关键词
覆岩离层注浆/煤矸石/粉煤灰/创造利润Key words
grouting of overlying rock separation layer/coal gangue/fly ash/creating profits引用本文复制引用
出版年
2024
NETL
NSTL
万方数据