深部矿井沿空掘巷煤柱留设宽度确定

Determination of coal pillar reserve-width for goaf-side entry driving in deep coal mine

在深部矿井沿空掘巷的煤柱留设宽度设计中,要求其既可保证巷道的稳定性,同时又可提升开采效率。通过理论分析与数值模拟的方式,探究某深部矿井沿空掘巷的煤柱留设宽度设计。分析发现,其留设宽度设计在5 m最为合理。

In the design of the coal pillar width for goaf-side entry driving in deep mine,the roadway stability and improvement of mining efficiency was required. Based on the theoretical analysis and numerical simulation,the design of coal pillar width for goaf-side entry driving in deep mine was researched. The analysis result shows that the most reasonable coal pillar width is 5m.