| 沿空掘巷锚网梁索联合支护技术 |
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| 引用本文： | 欧懿,朱川曲,李青锋,康付如,杨党委.沿空掘巷锚网梁索联合支护技术[J].湖南科技大学学报(自然科学版),2015,30(2). |
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| 作者姓名： | 欧懿 朱川曲 李青锋 康付如 杨党委 |
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| 作者单位： | 1.湖南科技大学 湖南省煤炭安全开采重点实验室，湖南 湘潭 411201;
2. 湘潭县国土资源局,湖南 湘潭 411228; 3. 贵州省矿山安全科学研究院，贵州 贵阳 550025 |
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| 基金项目： | 国家自然科学基金资助项目(51174086)；国家自然科学基金资助项目(51274096) |
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| 摘 要： | 本文结合沿空掘巷支护特点,通过数值模拟分析确定了山脚树矿21128回风巷合理煤柱的留设宽度为7 m.采用钻孔岩层结构探测技术手段对巷道围岩松动情况进行探测,确定了巷道松动圈影响范围一般在2.2 m左右,为支护方式的确定和支护参数优化提供了实际依据,提出了锚网梁索支护方案.通过FLAC3D有限差分软件分析和工程监测结果表明,巷道围岩变形在安全生产允许范围内,顶板离层较小,巷道围岩得到了有效控制.
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| 关 键 词： | 沿空掘巷 合理煤柱 围岩松动探测 联合支护 工程监测 |
Technical of combined supporting with bolt
mesh and cable in driving roadway along goaf |
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| Ou Yi,Zhu Chuanqu,Li Qingfeng,Kang Furu,Yang Dangwei.Technical of combined supporting with bolt
mesh and cable in driving roadway along goaf[J].Journal of Hunan University of Science & Technology(Natural Science Editon),2015,30(2). |
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| Authors: | Ou Yi Zhu Chuanqu Li Qingfeng Kang Furu Yang Dangwei |
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| Abstract: | Based on the characteristics of supporting design of road driving along next goaf, the reasonable design of coal pillar width of returning air lane 21128 in the Bottom Tree Mine was 7 m. The drilling strata structure detection technology was adopted to detect the surrounding rock loose condition, the influence circle of roadway loose was determined around 2.2 m, which it provided the practical basis of determination of supporting method and parameters optimization of support, and proposed the beam and metal net supporting scheme as well. The results show that the deformation of roadway surrounding rock in the range of allowable safety production, roof abscission layer of is small, and roadway surrounding rock is effectively controlled. |
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| Keywords: | roadway driving along goaf narrow coal pillar surrounding rock loose detection combined supporting engineering monitoring |
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