| 膨胀土地基下伏小采空区地表变形数值分析 |
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| 引用本文： | 顾生,唐咸远.膨胀土地基下伏小采空区地表变形数值分析[J].西部交通科技,2013(5):1-5. |
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| 作者姓名： | 顾生 唐咸远 |
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| 作者单位： | 1. 广西吉泰投资有限公司,广西南宁,530200
2. 长沙理工大学道路结构与材料交通行业重点实验室,湖南长沙,410004 |
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| 基金项目： | 广西交通科技项目"膨胀土处治新技术在南宁外环路基应用研究" |
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| 摘 要： | 为对高速公路膨胀土地基下伏小采空区的地表变形进行定量计算,文章以在建的南宁外环公路钻探资料为依据,通过FLAC3D建立有限差分网格模型,定量计算分析该公路采空区的地表变形情况,揭示膨胀土地基下伏采空区的变形机理,为处理膨胀土地基下伏煤层开采沉陷变形提供科学依据。
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| 关 键 词： | 膨胀土路基 采空区 地表变形 数值分析 |
Numerical Analysis on Surface Deformation of Small Goaf beneath Expansive Soil Roadbed |
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| GU Sheng
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TANG Xian-yuan.Numerical Analysis on Surface Deformation of Small Goaf beneath Expansive Soil Roadbed[J].Western China Communication Science & Technology,2013(5):1-5. |
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| Authors: | GU Sheng TANG Xian-yuan |
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| Institution: | 1.Guangxi Jitai Investment Co.,Ltd.,Nanning,Guangxi,530200;2.Key Laboratory of Road Structure and Material Ministry of Communication,Changsha University of Science ＆ Technology,Changsha,Hunan,410004) |
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| Abstract: | In order to conduct the quantitative calculation on the surface deformation of small goaf beneath expressway expansive soil roadbed,and relying on the drilling data of Nanning Outer Ring Road under construction,the article established the finite difference grid model through FLAC3D,conducted the quantitative calculation and analysis on the surface deform-ation of goaf beneath this road,and revealed the deformation mechanism of goaf beneath expansive soil roadbed,thereby providing the scientific basis for processing the subsidence deformation of underlying coal layer of expansive soil roadbed. |
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| Keywords: | Expansive soil roadbed Goaf Surface deformation Numerical analysis |
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