b000n kLJangzhu保安矿柱(safety pillar)为保护地表地貌、地面建筑、构筑物和主要井巷，分隔矿田、井田、含水层、火区及破碎带等而留下不采或暂时不采的部分矿体。
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... 4 用支架控制煤矿顶板事故（To cantrol roof of coalliery with support） 5 安全矿柱（Safety pillar） 6 金属矿冒顶（Roof fall in metal mine ） ...
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shaft safety pillar 井筒保安矿柱
coal safety pillar 保护煤柱
safety pillar against sand 防砂煤柱
safety pillar against water 防水煤柱
safety pillar under water-bodies 防水煤岩柱
safety pillar against water-inrush 防水煤柱
safety ore pillar 安全矿柱
safety rock pillar 安全岩柱
safety coal pillar 安全煤柱
It is the most common way to remain coal safety pillar for protecting surface buildings from mining damage.
留设保护煤柱是防止建筑物受采动损坏的最常用方法。
It is first raised that safety coefficient can be calculated by using the widths of yield zone and pillar, and the steps of designing the strip mining size are pro-posed.
首次提出了根据屈服带宽度和条带煤柱宽度来确定条带开采安全系数的方法，同时给出了设计条带开采尺寸的步聚。
This paper calculates reliability index, lose efficacy probability and safety coefficient corresponding to the width of different barrier pillar.
并计算了与防水煤柱有关的可靠度指标、失效概率和安全系数。
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