深部开采条件下保护煤柱备用尺寸的确定方法

Determination method of additional size for protective coal pillar under deep coal mining conditions

在分析目前留设保护煤柱备用尺寸存在问题的基础上,依据保护煤柱留设过程中的误差来源,对深部开采条件下留设保护煤柱所需的备用尺寸宽度予以探讨,提出了确定保护煤柱备用尺寸的新方法,给出了深部开采条件下按开采深度确定的备用尺寸宽度,并对文中给出的备用尺寸的合理性进行了分析。

Base on the analysis of the existing issues of the additional size for the protective coal pillars left in coal mine at present and according to the error resources during the coal pillars set up, the paper discussed the additional size and width required for the coal pillars under the deep mining conditions. The paper provided the new method to determinate the additional size of the protective coal pillars and provided the additional size and width determined according to the mining depth under the deep mining conditions. The paper analyzed the rationality of the additional size.