| 泉州-三明高速公路K208＋850～K209＋190段滑坡稳定性评价 |
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| 引用本文： | 林琛.泉州-三明高速公路K208＋850～K209＋190段滑坡稳定性评价[J].工程地球物理学报,2008,5(2):247-252. |
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| 作者姓名： | 林琛 |
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| 作者单位： | 福建省交通规划设计院,福州,350004 |
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| 摘 要： | 泉州-三明高速公路K208＋850～K209＋190段滑坡地质环境条件复杂，岩土层强度低，软化夹层发育，边坡开挖后产生滑坡活动。本文详细分析了滑坡的成因机理，采用不平衡推力法和有限元数值模拟法，评价了滑坡的稳定性特征。结果表明，滑坡处于蠕滑状态，稳定性差，边坡继续开挖将产生新的滑坡活动。
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| 关 键 词： | 滑坡 稳定性 成因机理 不平衡推力 数值模拟 蠕滑 |
| 文章编号： | 1672-7940(2008)02-0247-06 |
| 修稿时间： | 2008年2月15日 |
Study on the Stability of Landslide Between K 208-1-850 and K209+190 Kilometers of Quanzhou-Sanming Expressway |
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| Lin Chen.Study on the Stability of Landslide Between K 208-1-850 and K209+190 Kilometers of Quanzhou-Sanming Expressway[J].Chinese Journal of Engineering Geophysics,2008,5(2):247-252. |
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| Authors: | Lin Chen |
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| Affiliation: | Lin Chen (Fjian Highway Design Institute ,Fuzhou 350004,China) |
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| Abstract: | The environmental-geological condition of landslide between K 208 850 and K209 190 kilometers of Quanzhou-Sanming Expressway is very complex,the shearing strength of rock-soil layer is not strong and the landslide activity has resulted from the improper excavation.In this paper,the cause of landslide formation is analysed in detail,and stability of landslide is calculated by imbalance thrust force method and numerical analysis of FEM.According to the result of the landslide stability calculation,the landslide is in the status of creeping or failure,the improper excavation will produce new landslide activity from K 208 850 to K209 190 kilometers of Quanzhou-Sanming Expressway. |
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| Keywords: | landslide stability cause of landslide formation imbalance thrust force numerical analysis creep |
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