摘要
通过数值计算,分析了双巷掘进时尾巷不同宽度及煤柱不同宽度时的双巷围岩变形、应力分布,得出尾巷的合理宽度及双巷掘进时煤柱尺寸的合理留设,为具有类似条件的巷道掘进提高参考。
Through numerical simulation, this paper analyzed the distortion of surrounding rock and the stress distribution of two - roadway in the grubbing of two - roadway on the basis of tail - roadway and coal pillar dif- ferent size, obtained the rational size of tail - roadway and coal pillar, and offered the reference to the similar condition of two - roadway grubbing.
出处
《煤炭技术》
CAS
2007年第11期123-125,共3页
Coal Technology
关键词
双巷
煤柱尺寸
围岩变形
数值计算
two - roadway
coal pillar size
distortion of surrounding rock
numerical simulation
