sublayer

Study on the affecting factors of rational layout location of gate-road in the bottom slicing;

下分层回采巷道合理布置位置影响因素研究

The following conclusions can be drawn: stress distribution curves in the bottom slicing,and failure process and displacement characteristics of side coal-wall of gate-road in the bottom slicing.

利用非线性有限元数值计算方法,模拟了上分层回采巷道开挖、上分层回采及下分层回采巷道开挖三个过程,经过分析得出了下分层煤体内应力分布曲线、内错式下分层回采巷道两帮煤体破坏过程及两帮位移分布特征;室内相似材料模拟试验结果显示了底板岩层竖直应力分布规律及采空区上覆岩层破坏形式。