| 基于湿度应力场理论的膨胀土边坡稳定分析 |
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| 引用本文： | 谭波. 基于湿度应力场理论的膨胀土边坡稳定分析[J]. 西部交通科技, 2009, 0(8): 11-14 |
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| 作者姓名： | 谭波 |
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| 作者单位： | 长沙理工大学,湖南,长沙,410076;桂林理工大学,广西,桂林,541004 |
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| 基金项目： | 交通部交通建设科技项目"膨胀土地区公路修筑成套技术研究"，广西建筑工程检测与试验重点实验室项目"广西地区膨胀土在公路建设中的灾害分析及处治技术" |
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| 摘 要： | 边坡土体中的膨胀力是导致膨胀土边坡失稳的主要原因之一。文章基于湿度应力场理论,采用ANSYS软件的热传导分析功能模拟分析边坡的降雨入渗以及膨胀变形,并采用有限元强度折减法对不同条件下边坡安全系数进行计算,分析了膨胀土边坡稳定规律,为膨胀土边坡处治提供理论依据。
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| 关 键 词： | 膨胀土 膨胀力 湿度应力场 有限元强度折减法 |
Stability Analysis for Expansive Soil Slope Based on Humidity Stress Field Theory |
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| TAN Bo. Stability Analysis for Expansive Soil Slope Based on Humidity Stress Field Theory[J]. Western China Communication Science & Technology, 2009, 0(8): 11-14 |
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| Authors: | TAN Bo |
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| Affiliation: | TAN Bo (1. Changsha University of Science and Technology, Hunan, Changsha, 410076; 2. GuiLin University of Technology, Guangxi ,Guilin,541004) |
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| Abstract: | It is one of the main reasons that the Slope of soil expansive force lead to expansive soil slope instability.Based on Humidity Stress Field Theory, the paper uses of the coupled thermal-stress function of ANSYS finite element to imitate the rainfall seepage and expansive force of slope, calculate numerously the Slope safety factors by shear strength reduction method with FEM under Different conditions, have got the rule of instability about the type of the slope,and have provided a the - oretical basis for Treatment for the expansive soil slope. |
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| Keywords: | Expansive soil Expansive force Humidity Stress Field Shear strength reduction method with FEM |
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