摘要
东曲矿28802工作面为研究背景,通过对结构充填理论的分析和相似模拟实验,证明了结构充填开采的可行性,为此进行了现场应用。通过对柱式结构充填开采时亚关键层垂直应力变化观察,得到柱式开采不仅提高了直接顶的承载能力,间接提高了亚关键层的承载能力,为绿色高效开采提供了重要保障。
Taking 28802 working face of Dongqu Coal Mine as the research background,through the analysis of structural filling theory and similar simulation experiment,the feasibility of structural filling mining was proved,and the field application was carried out.Through the observation of vertical stress change of sub key layer during pillar structure filling mining,it is concluded that pillar mining not only improves the bearing capacity of direct roof,but also indirectly improves the bearing capacity of sub key stratum,which provides an important guarantee for green and efficient mining.
作者
成昕隆
Cheng Xinlong(Dongqu Coal Mine of Xishan Coal Electricity Group Co.,Ltd.,Taiyuan Shanxi 030053)
出处
《山西冶金》
CAS
2020年第6期62-64,共3页
Shanxi Metallurgy
关键词
结构充填
相似模拟
亚关键层
直接顶
structural filling
similar simulation
sub key layer
direct roof
