| 碎胀煤层复用留巷支护技术 |
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| 引用本文： | 秦海忠.碎胀煤层复用留巷支护技术[J].山西煤炭,2011,31(6):27-30. |
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| 作者姓名： | 秦海忠 |
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| 作者单位： | 晋城蓝焰煤业股份有限公司成庄矿,山西晋城,048000 |
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| 摘 要： | 通过现场调研和钻孔窥视等方法,分析受掘进扰动和采动影响时煤柱体的变化及裂隙张开、扩容变形情况;研究围岩结构对巷道围岩变形和稳定性的影响;同时借助数值计算软件,分析围岩强度和结构与围岩变形的关系,提出成庄矿5306工作面受多次采动影响下的碎胀煤层留巷巷道支护设计方案,并成功应用现场生产实践,取得了显著的支护效果。
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| 关 键 词： | 碎胀煤层 采动影响 钻孔窥视 数值模拟 |
Supporting Technology of Retained Roadway in Broken-expansion Coal Seams |
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| QIN Hai-zhong.Supporting Technology of Retained Roadway in Broken-expansion Coal Seams[J].Shanxi Coal,2011,31(6):27-30. |
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| Authors: | QIN Hai-zhong |
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| Affiliation: | QIN Hai-zhong(Chengzhuang Mine,Lanyan Coal Co.,Jincheng Shanxi 048000) |
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| Abstract: | Through field investigation and borehole peering,the coal pillar,fracture opening,and expanding deformation are studied under the influence of driving disturbance and mining.The surrounding rock structure's effect on the deformation and stability is also studied.Meanwhile,with some numerical calculation softwares,the relationship between the strength and structure of surrounding rock and its deformation is analyzed.The paper presents the supporting design of retained roadway in broken-expansion coal seams i... |
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| Keywords: | broken-expansion coal seam mining effect borehole peering instrument numerical simulation |
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