| 采动影响下煤巷围岩变形破坏运移规律及其支护技术研究 |
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| 引用本文： | 张东辉.采动影响下煤巷围岩变形破坏运移规律及其支护技术研究[J].中州煤炭,2019,0(9):190-193. |
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| 作者姓名： | 张东辉 |
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| 作者单位： | （河南能源化工集团 永煤公司车集煤矿，河南 永城 476600） |
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| 摘 要： | 为了确保矿井巷道的稳定性，采用理论分析和数值模拟相结合的方法，理论分析了围岩与支护共同作用特性以及支承压力带宽度与煤层采厚和开采深度的关系，模拟了支护前后巷道沿X、Y方向上的位移变化以及塑性区分布。研究得出，随着开采深度和煤层厚度的增加，支承压力带宽度逐渐增大；当采用联合支护状况下，巷道顶底板变形量最小，塑性区最小，表明该支护方案能够到达稳定岩层的作用。
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| 关 键 词： | 采动影响 变形破坏运移规律 支承压力 位移变化 塑性区 |
Study on deformation，failure，migration law and support technology of coal roadway surrounding rock under effect of mining |
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| Zhang Donghui. Study on deformation，failure，migration law and support technology of coal roadway surrounding rock under effect of mining[J].Zhongzhou Coal,2019,0(9):190-193. |
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| Authors: | Zhang Donghui |
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| Affiliation: | （Juji Coal Mine，Yongcheng Coal Company，Henan Energy and Chemical Group，Yongcheng 476600，China） |
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| Abstract: | In order to ensure the stability of mine roadway，using the method of theory analysis and numerical simulation，this paper theoretically analyzes the characteristics of the joint action of surrounding rock and support and the relationship between the width of the bearing pressure belt and the thickness and depth of coal seams，and simulates the displacement changes along X，Y directions and the plastic zone distribution of roadway before and after support.It is concluded that with the increase of mining depth and coal seam thickness，the width of abutment pressure band increases gradually；when combined support is adopted，the deformation of roof and floor of roadway is the smallest，and the plastic zone is the smallest，which indicates that the support scheme can reach the role of stabilizing rock strata. |
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| Keywords: | ,mining effect, degeneration and failure migration law, bearing pressure, displacement change, plastic zone |
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