煤矿安全2018，Vol.49Issue(4)：225-228,4.DOI:10.13347/j.cnki.mkaq.2018.04.058
大采高工作面过断层采动应力演化与顶板稳定性研究
Mining-induced Stress Evolution and Roof Stability of Large Mining Height Working Face Passing Through Fault
摘要
Abstract
Numerical simulation was used to study the stress evolution of surrounding rock when large mining height working face passed through a fault, and the stress around the fault and the abutment pressure with the advancing of working face were analyzed; structural characteristics of roof of large mining height working face during passing through a fault were compared to that of normal mining height working face and non-fault large mining height working face. The stability of roof was analyzed when working face passed though a fault, and the possible failure types were pointed out. Grouting measures to improve the stability of the roof were proposed, and the field application shows that the coal pillar has good stability during passing through the fault, and the roof is stability. There is no abnormal load and damage on supports, and the roof can be controlled well.关键词
大采高工作面/过断层/采动应力演化/顶板稳定性/数值模拟Key words
large mining height working face/passing through fault/mining-induced stress evolution/roof stability/numerical simulation分类
矿业与冶金引用本文复制引用
尚奇,伊康,李飞扬..大采高工作面过断层采动应力演化与顶板稳定性研究[J].煤矿安全,2018,49(4):225-228,4.基金项目
"十二五"国家科技支撑资助项目(2012BAB13B04) （2012BAB13B04）
