| 围岩性质对采空区稳定性的影响分析 |
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| 引用本文： | 杨燻伟. 围岩性质对采空区稳定性的影响分析[J]. 贵州大学学报(自然科学版), 2012, 29(3): 100-103 |
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| 作者姓名： | 杨燻伟 |
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| 作者单位： | 贵州高速公路开发总公司,贵州贵阳,550004 |
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| 摘 要： | 建立采空区数值模型,采用FLAC3D计算L了采空区变形、应力、塑性区分布情况,在采空区顶部产生较大位移,为采空区冒落带,而在采空区水平方向两侧则有较大应力集中区。对采空区围岩的各因素进行了敏感性分析,给各因子赋予了权重值,为采空区的治理工作提供了必要的参考。
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| 关 键 词： | 采空区 围岩 数值模拟 敏感性 FLAC3D |
The Impact of Surface Gradient on Stability of Goaf Surrounding Rock |
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| YANG Xun-wei. The Impact of Surface Gradient on Stability of Goaf Surrounding Rock[J]. Journal of Guizhou University(Natural Science), 2012, 29(3): 100-103 |
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| Authors: | YANG Xun-wei |
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| Affiliation: | YANG Xun-wei ( Guizhou Expressway Development Corporation, Guiyang 550004, China) |
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| Abstract: | Numerical model of goal was made in this paper, the distribution of goal deformation, stress, plastic zone was calculated by FLAC3D. It has a larger displacement at the top of the goaf, and is gob caving zone, while there is a large stress concentration in the goal on both sides of goal in the horizontal direction. The various factors＇sensitivity of surrounding rock was analyzed; a weight value was given to each factor. It provides necessa-ry reference for the goaf governance. |
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| Keywords: | goal surrounding rock numerical simulation sensitivity FLAC3D |
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