进路法回采顶柱其顶板安全厚度的数值分析方法

Numerical Analysis on Safety Thickness of A Roof for Top Pillar Recovery in Drift Mining

采用极限分析和顶板初次来压计算的方法 ,推导出进路法回采顶柱时 ,顶板安全厚度的计算公式 ,该式简单直观 ,使用方便 ,并在某金矿的科研与生产中应用。

Based on limit analysis and calculation methods for initial loading on a roof, a formula is deduced for calculating the safety thickness of a roof when recovering a top pillar in drift mining. This simple and convenient formula has been used in research and production in a gold mine.