| 全锚索支护软弱煤层碎胀顶板巷道的探析 |
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| 引用本文： | 宋斌.全锚索支护软弱煤层碎胀顶板巷道的探析[J].煤矿开采,2011,16(1):71-73,70. |
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| 作者姓名： | 宋斌 |
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| 作者单位： | 赵庄煤业有限责任公司,山西,长子,046605 |
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| 摘 要： | 赵庄煤矿3号煤层井田由于受到多期地质构造的影响,煤层松软破碎,顶板碎胀易剥落,巷道破坏严重:顶板下沉易冒落,巷道移近量大,底鼓严重,有的地段达到1m,支护难度较大.根据赵庄煤矿巷道围岩变形特征,设计采用高预应力短锚索支护巷道顶板,通过大幅度提高巷道支护体系的强度和刚度,有效地抑制围岩变形.在井下的试验中,采用了高预应力...
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| 关 键 词： | 高预应力 短锚索 软弱煤层 碎胀顶板 |
Discussion on Supporting Roadway with Broken Soft Roof by Fully Anchored Rope in Soft Coal Seam |
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| SONG Bin.Discussion on Supporting Roadway with Broken Soft Roof by Fully Anchored Rope in Soft Coal Seam[J].Coal Mining Technology,2011,16(1):71-73,70. |
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| Authors: | SONG Bin |
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| Affiliation: | SONG Bin(Zhaozhuang Coal Mining Co.,Ltd,Zhangzi 046605,China) |
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| Abstract: | Influenced by multi-stage geological tectonic,3rd coal-seam of Zhaozhuang Colliery was soft and broken,its roof was easy to fall,and roadway damage was serious.Roadway supporting was very difficult because surrounding rock deformation was very large and floor heave might amount to 1m.Based on roadway deformation characteristic of Zhaozhuang Colliery,short anchored rope with high pre-stress was applied to controlling deformation by improving supporting strength and stiffness.Underground practice showed that ... |
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| Keywords: | high pre-stress short anchored rope soft coal-seam broken soft roof |
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