| 厚层炭质泥岩顶板煤巷复合主动支护系统研究 |
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| 引用本文： | 杜波,谢生荣,何富连,张守宝,李开晴,朱雪松.厚层炭质泥岩顶板煤巷复合主动支护系统研究[J].煤炭科学技术,2009,37(2). |
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| 作者姓名： | 杜波 谢生荣 何富连 张守宝 李开晴 朱雪松 |
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| 作者单位： | 杜波,谢生荣,张守宝,李开晴,朱雪松,DU Bo,XIE Sheng-rong,ZHANG Shou-bao,LI Kai-qing,ZHU Xue-song(北京科技大学土木与环境工程学院,北京,100083);何富连,HE Fu-lian(中国矿业大学(北京)资源与安全工程学院,北京,100083)
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| 基金项目： | 教育部留学回国人员科研启动基金 |
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| 摘 要： | 厚层炭质泥岩顶板大跨度煤巷采用传统的锚杆(索)支护方式,无法解决无稳定上位岩层可供悬吊的关键难题,易发生垮冒事故.为了能有效控制巷道变形,促进矿井安全生产,提出了复合主动支护系统控制厚层炭质泥岩顶板大跨度煤巷,阐述了其支护原理,建立了复合主动支护系统的力学模型,得出了复合主动系统中桁架锚索结构达到系统平衡时预紧力Qy值的临界条件.采用FLAC5.0数值模拟软件计算设计和优化平煤八矿厚层炭质泥岩顶板大跨度煤巷复合主动支护系统方案,现场实测巷道顶板最大下沉量为158 mm,巷道断面收敛率小,有效地控制了巷道变形,同时为各类复杂地质条件的应用提供了有力依据,具有良好的推广应用前景.
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| 关 键 词： | 厚层炭质泥岩顶板 大跨度 复合主动支护 煤巷 桁架锚索 |
Study on Complex Active Support System of Seam Gateway with Thick Carbonaceous Mudstone Roof |
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| DU Bo,XIE Sheng-rong,HE Fu-lian,ZHANG Shou-bao,LI Kai-qing,ZHU Xue-song.Study on Complex Active Support System of Seam Gateway with Thick Carbonaceous Mudstone Roof[J].Coal Science and Technology,2009,37(2). |
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| Authors: | DU Bo XIE Sheng-rong HE Fu-lian ZHANG Shou-bao LI Kai-qing ZHU Xue-song |
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| Affiliation: | DU Bo1,XIE Sheng-rong1,HE Fu-lian2,ZHANG Shou-bao1,LI Kai-qing1,ZHU Xue-song1 (1.School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China,2.School of Resources and Safety Engineering,China University of Mining and Technology(Beijing),China) |
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| Abstract: | The conventional bolt(or anchor) support method for a large span seam gateway with thick carbonaceous mudstone roof could not solve the key problems of the suspending on the roof with no stable strata above and would be easy to have a roof failing accident occurred.In order to efficiently control the deformation of the gateway and promote the mine safety production,the project group provided a compound active support system to control the large span gateway with the thick carbonaceous mudstone roof.The pape... |
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| Keywords: | thick carbonaceous mudstone roof large span complex active support seam gateway truss anchor |
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