| 多年冻土区热融滑塌型滑坡稳定性评价方法 |
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| 引用本文： | 牛富俊,靳德武,马巍,温智.多年冻土区热融滑塌型滑坡稳定性评价方法[J].冰川冻土,2004,26(Z1):171-174. |
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| 作者姓名： | 牛富俊 靳德武 马巍 温智 |
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| 作者单位： | State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China,State Key Laboratory of Frozen Soil Engineering, CAREERI, CAS, Lanzhou Gansu 730000, China;Department of Geology Engineering and Surveying Engineering, Chang'an University, Xi'an Shaanxi 710054, China |
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| 基金项目： | 国家自然科学基金
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中国科学院知识创新工程项目
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中国科学院知识创新工程项目 |
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| 摘 要： | Landslide of thaw-slumping in permafrost regions of the Qinghai-Tibet Plateau is studied in this paper. Thaw-slumping belongs to shallow landslide with small depth-length ratio. Therefore the infinite slope analysis method is available to be applied in the stability analysis. Considering identical seepage directions to slope surface, we deduced analytical expressions of safety factor according to the effective stress principle and plotted stability analysis chart of slopes with dry or fully saturated soils.Taking an example of landslide of thaw-slumping at the mileage of K3035 of the Qinghai-Tibet Highway, we evaluated the analytical expressions.
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| 关 键 词： | Qinghai-Tibet Plateau permafrost thaw-slumping infinite slope stability evaluation |
Stability Analysis Methods for Evaluating Landslide of Thaw-slumping in Permafrost Regions |
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| NIU Fu-jun,JIN De-wu,MA Wei,WEN Zhi.Stability Analysis Methods for Evaluating Landslide of Thaw-slumping in Permafrost Regions[J].Journal of Glaciology and Geocryology,2004,26(Z1):171-174. |
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| Authors: | NIU Fu-jun JIN De-wu MA Wei WEN Zhi |
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| Abstract: | Landslide of thaw-slumping in permafrost regions of the Qinghai-Tibet Plateau is studied in this paper. Thaw-slumping belongs to shallow landslide with small depth-length ratio. Therefore the infinite slope analysis method is available to be applied in the stability analysis. Considering identical seepage directions to slope surface, we deduced analytical expressions of safety factor according to the effective stress principle and plotted stability analysis chart of slopes with dry or fully saturated soils.Taking an example of landslide of thaw-slumping at the mileage of K3035 of the Qinghai-Tibet Highway, we evaluated the analytical expressions. |
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| Keywords: | Qinghai-Tibet Plateau permafrost thaw-slumping infinite slope stability evaluation |
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