文章详细信息 关键词: 沿空掘巷;;理论计算;;数值模拟;;煤柱宽度 [gap=702]Keywords: gob-side entry driving;theoretical calculation;numerical simulation;coal pillar width
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The study indicates that with the increase of the coal pillar width the peak mining stress delays its appearance and the increase of the displacement and stress are not synchronous.
研究表明,综放沿空留巷受采场矿压影响时间和程度随留巷煤柱宽度的增加表现出明显滞后现象以及位移和压力增长的不同步现象。
Lengthening the width of isolated fully mechanized top coal caving face would reduce the abutment pressures for both wide and small coal pillars, and the coal pillar width could be reduced.
加长孤岛综放工作面长度,护巷大煤柱和小煤柱的支承压力均减小,可以减小护巷煤柱宽度。
This paper analyzed and calculated width of coal pillar for driving roadway along gob.
对沿空掘巷时煤柱的留设问题进行了分析和计算。
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