| 桃形柱预加固技术在马庄矿区的应用 |
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| 引用本文： | 周安澜 蔺玉琪. 桃形柱预加固技术在马庄矿区的应用[J]. 山东冶金, 1997, 19(4): 1-3 |
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| 作者姓名： | 周安澜 蔺玉琪 |
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| 作者单位： | 莱芜钢铁总厂莱芜铁矿 |
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| 摘 要： | 莱鞠铁矿马矿区选择矿岩松软破碎的＋５０ｍ水平６Ａ线矿房下分段作为试验矿房，采用桃形柱预加固技术和喷锚网联合支护后，耙巷更加稳固，实现了顺利出矿，提高了出矿强度，矿石平均回收率由原钢木联合支护时的７０％提高到８０．４％，共创经济效益２８．７３万元。
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| 关 键 词： | 桃形柱 预加固 支护结构 锚喷支护 耙巷 支护 |
The Application of Peach shaped Pillar Pre reinforcement Technique in Mazhuang Mining Area |
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| Zhou Anlan Lin Yuqi. The Application of Peach shaped Pillar Pre reinforcement Technique in Mazhuang Mining Area[J]. Shandong Metallurgy, 1997, 19(4): 1-3 |
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| Authors: | Zhou Anlan Lin Yuqi |
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| Affiliation: | Laiwu Iron Mine of Laiwu Iron and Steel General Works |
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| Abstract: | Mazhuang mining area of Laiwu iron mine selects soft ore chamber and staged under this ore chamber at +50m level 6A line as experimental ore chamber,and after used of combined support by peach shaped pillar pre reinforcement technique and bolt spray support,the raking tunnel is further stabilized and the ore productivity is increased.The average ore recovery ratio is rised to 80 4% from 70% which is supported by combined by steel and wood and the economic result produced by this technique is 0 2873 million yuan/a. |
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| Keywords: | peach shaped pillar pre reinforcement support structure bolt spray support |
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