摘要
采用三维数值模拟软件FLAC^(3D)对缓倾斜煤层沿空掘巷进行数值计算分析,探讨采用不同宽度窄煤柱护巷时在掘巷期间及回采期间巷道围岩应力与变形破坏特征,得出合理的窄煤柱宽度为5 m。
By using FLAC^3D numerical simulation software to analyze gently inclined coal seam gobside entry driving, and to explore the characteristics of surrounding rock stress and deformation in different width narrow coal pillar at driving stage and mining stage. The results showed that the reasonable width of the narrow pillar is 5 m.
出处
《煤炭技术》
CAS
北大核心
2016年第7期43-45,共3页
Coal Technology
基金
国家自然科学基金委员会与神华集团有限公司联合资助项目(51174255)
关键词
缓倾斜煤层
沿空掘巷
煤柱宽度
gently inclined coal seam
gob-side entry driving
pillar width
