| 采空区下综采工作面大断面切眼支护技术 |
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| 引用本文： | 王元明,冯伟,柏建彪. 采空区下综采工作面大断面切眼支护技术[J]. 煤炭科学技术, 2011, 39(6): 6-8,11 |
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| 作者姓名： | 王元明 冯伟 柏建彪 |
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| 作者单位： | 1. 山西蒲县宏源煤业集团有限公司,山西临汾,041200
2. 中国矿业大学煤炭资源与安全开采国家重点实验室,江苏徐州,221008 |
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| 基金项目： | 国家自然科学基金资助项目(50774077); 全国博士学位论文作者专项资金资助项目(200760); 煤炭资源与安全开采国家重点实验室自主研究课题资助项目(SKLCRSM08X04) |
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| 摘 要： | 为了研究采空区下方综采工作面切眼支护技术,针对北峪煤矿3-101综采工作面切眼宽6.5 m、顶板距上层煤采空区最小只有0.8 m且被采空区积水浸泡软化等特点,依据工程类比法提出,采用W钢带与长2.5 m的水力膨胀锚杆组合支护采空区下方工作面切眼顶板,锚杆间距750mm,排距500~700 mm,两帮可不进行支护。该技术在现场实施后,切眼顶底板相对移近量最大75 mm,有效地解决了采空区下极近距离综采工作面切眼顶板支护问题。
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| 关 键 词： | 采空区 极薄层顶板 综采切眼 水力膨胀锚杆 |
Roof Support Technology of Open-Off Cut for Fully Mechanized Coal Mining Face Under Goaf Area |
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| WANG Yuan-ming,FENG Wei,BAI Jian-biao. Roof Support Technology of Open-Off Cut for Fully Mechanized Coal Mining Face Under Goaf Area[J]. Coal Science and Technology, 2011, 39(6): 6-8,11 |
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| Authors: | WANG Yuan-ming FENG Wei BAI Jian-biao |
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| Affiliation: | WANG Yuan-ming1,FENG Wei2,BAI Jian-biao2(1.Shanxi Puxian Hongyuan Coal Mining Group Company Ltd.,Linfen 041200,China,2.State Key Lab of Coal Resources and Safety Mining,China University of Mining and Technology,Xuzhou 221008,China) |
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| Abstract: | In order to study the roof support technology of the open-off cut for the fully mechanized coal mining face under the goaf,according to the 6.5 m width open-off cut of No.3-101 fully mechanized coal mining face in Beiyu Mine,a face roof distance of 0.8 m to above seam goaf and the watery softened floor features of the above goaf,based on the engineering analogy,the W-type steel bands and the 2.5 m long hydraulic swelling anchors were applied to the combined support of the open-off cut of the coal mining fac... |
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| Keywords: | goaf ultra thin roof open-off cut of fully mechanized coal mining hydraulic swelling bolt |
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