| 高跨比对层状顶板稳定性的影响 |
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| 引用本文： | 黄旭,贾安立,马念杰,张凤岩.高跨比对层状顶板稳定性的影响[J].矿业研究与开发,2006,26(1):17-19. |
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| 作者姓名： | 黄旭 贾安立 马念杰 张凤岩 |
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| 作者单位： | 中国矿业大学(北京校区)资源与安全工程学院,北京,100083 |
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| 摘 要： | 根据梁的受力理论,对层状顶板的破坏进行了力学分析。通过层状顶板破断的演化过程来研究其破断机理,探讨了层状顶板的应力分布状态。运用东北大学岩石破裂与失稳研究中心的岩石破裂过程分析系统(RFPA2D)对高跨比对复合层状顶板稳定性的影响进行了数值模拟计算,得出了不同高垮比对巷道稳定性的影响情况。
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| 关 键 词： | 高跨比 层状顶板 稳定性 煤巷 数值模拟 |
| 文章编号： | 1005-2763（2006）01-0017-03 |
| 收稿时间： | 2005-05-27 |
| 修稿时间： | 2005年5月27日 |
Influence of High-Span Ratio on Stability of Layered Strata Roof |
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| Huang Xu,Jia Anli,Ma nianfie,Zhang Fengyan.Influence of High-Span Ratio on Stability of Layered Strata Roof[J].Mining Research and Development,2006,26(1):17-19. |
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| Authors: | Huang Xu Jia Anli Ma nianfie Zhang Fengyan |
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| Abstract: | In this paper,the mechanical analysis of layered rock roof breakage is carried out based on forcing beam theory,the breaking mechanism of layered rock roof is researched according to the evolution of its breakage,and the distribution pattern of stress in layered rock roof is discussed,the numerical simulation and calculation of the influence of high-span ratio on the stability of composite and layered rock roof is carried out by use of Rock Failure Process Analysis(RFPA~(2D)) of CRISR,resulting in the influencing level of various high-span ratio on the stability of roadway roof. |
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| Keywords: | High-span ratio Layered roof Stability Coal roadway Numerical simulation |
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