摘要
基于内蒙古昊源煤矿煤层赋存特征,以1601工作面为研究对象,分析了采用连采连充式胶结充填采煤技术的可行性和适应性;设计了充填开采方案;构建了完整井上、井下充填系统,实现了充填材料混合和输送自动控制;数值模拟表明,充填开采覆岩控制效果良好,采场顶板垂直应力呈现W形分布,最大顶板下沉量为113 mm。现场实践表明,连采连充巷式胶结充填在昊源煤矿应用良好。
Aiming at the geological characteristics of coal seams in Haoyuan coal mine, taking 1601working face as the research object, the feasibility and adaptability of using continuous mining and continuous backfilling(CMCB) cemented-fill mining technology are analyzed. Design the technology plan, and build a complete filling system, which realize the automatic control of the mixing and conveying of filling materials. Numerical simulations show that the CMCB mining method can effectively limit the roof subsidence. The vertical stress of the branchs and coal pillars present a W-shaped distribution, the maximum roof subsidence is 113 mm. Field practice shows that the CMCB mining method is well applied in Haoyuan mine.
作者
史新浩
路彬
林海
SHI Xinhao;LU Bin;LIN Hai(Inner Mongolia Otog Banner Haoyuan Coal Coking Co.,Ltd.,Ordos 017000,China;School of Mechanics and Civil Engineering,China University of Mining&Technology(Beijing),Beijing 100083,China;School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083,China)
出处
《煤炭技术》
CAS
北大核心
2022年第6期42-46,共5页
Coal Technology
关键词
胶结充填
采煤方法
充填系统
覆岩移动
地表沉降
cemented filling
mining method
filling system
roof movement
surface settlement
