摘要
针对原岩应力场在工作面回采后出现重新分布会导致形成孤岛煤柱支承应力影响等问题,以南庄煤矿8836工作面为例,通过建模模拟大巷孤岛煤柱应力分布状态,对大巷孤岛煤柱的应力进行分析,优化了8836煤柱工作面回采巷道的布置,为后期南庄煤矿各个工作面巷道的布置、煤柱留设尺寸的选取提供理论依据。
The original rock stress field will be redistributed after the mining of the working face,which affects bearing stress of isolated coal pillar.Taking 8836 working face of Nanzhuang coal mine as an example,this paper simulated the stress distribution state of the island coal pillar in the main roadway by modeling,analyzed the stress of the island coal pillar in the main roadway,optimized the layout of the mining roadway in the 8836 coal pillar working face,and provided a theoretical basis for the layout of the roadways in each working face of Nanzhuang coal mine and the selection of the reserved size of the coal pillar.
作者
聂飞
Nie Fei(Nanzhuang Coal Group Nanzhuang Branch,Yangquan Shanxi 045000)
出处
《山西冶金》
CAS
2022年第7期44-45,49,共3页
Shanxi Metallurgy
关键词
大巷
孤岛
煤柱
应力场
建模
main roadway
isolated island
coal pillar
stress field
modeling
