煤炭工程 ›› 2018, Vol. 50 ›› Issue (7): 42-45.doi: 10.11799/ce201807011
• 施工技术 • 上一篇 下一篇
张磊1,豆浩2
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摘要： 为解决厚煤层高煤帮回采巷道围岩控制难题，通过数值模拟研究了顶煤厚度、巷道高度对巷道围岩破坏的影响，结果表明，巷道顶煤厚度的变化对巷道顶板变形破坏影响最大|巷道高度对两帮围岩的变形破坏影响最大。基于围岩变形破坏情况和生产地质条件，提出了巷道支护的可行方案，现场实践表明锚网索联合支护方案能将巷道围岩变形量控制在较小范围内，围岩控制效果好。
关键词: 厚煤层, 高煤帮回采巷道, 围岩破坏, 围岩控制
Abstract: In order to solve the control problems of surrounding rock in roadway with thick coal and high sides, so the impacts of surrounding rock destruction were studied by numerical simulation when the roadway height and thickness of the top coal seam were different. The results show that the roadway height has a maximum impact on roadway sides, and the thickness of the top coal seam has a maximum impact on roadway roof. The feasible support scheme of bolt and anchor is proposed based on deformation characteristics of roadway and coal production and geology condition. Field test results show that the bolt-net-cable support scheme can not only effectively improve the support quality, but also control the deformation in relatively small size and ensure the stability of surrounding rock.
中图分类号:
TD353
张磊，豆浩. 厚煤层高煤帮回采巷道围岩破坏分析与控制[J]. 煤炭工程, 2018, 50(7): 42-45.
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http://www.coale.com.cn/CN/Y2018/V50/I7/42
