冻融循环作用下路基边坡稳定性变化研究 |
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引用本文: | 李航,于玲.冻融循环作用下路基边坡稳定性变化研究[J].路基工程,2011,0(5):26-28,32. |
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作者姓名: | 李航 于玲 |
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作者单位: | 沈阳建筑大学土木工程学院,沈阳 110168 |
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摘 要: | 为研究冻融循环作用对路基边坡稳定性的影响,建立了路基变形场及应力场的三维数值计算模型,并应用强度折减法求解路基边坡在冻融循环作用后的安全系数,分析了冻融作用范围内路基应力场和变形场的分布规律,得出冻融循环作用次数与路基边坡安全系数的关系。结果表明:冻融循环会改变路基边坡土体的力学性质,从而影响路基边坡的稳定性。路基边坡受到的冻融循环作用是引起路基病害的直接原因,反复的冻融循环作用将引起路基边坡稳定性的降低。
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关 键 词: | 冻融循环 路基边坡 边坡稳定性 强度折减法 |
收稿时间: | 2019-11-10 |
Study on Subgrade Slope Stability under the Effect of Freeze-Thaw Cycle |
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Authors: | Li Hang YU Ling |
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Institution: | Li Hang,YU Ling(School of Civil Engineering,Shenyang Architectural University,Shenyang 110168,China) |
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Abstract: | In order to study the effect of freeze-thaw cycle on subgrade slope stability,three-dimensional numerical model for subgrade deformation field and stress field is established and the safety factor of subgrade slope under the effect of freeze-thaw cycle is determined using strength reduction method in this paper.Then the distribution law of subgrade deformation field and stress field within the range of freeze-thaw action has been analyzed and the relationship between the number of freeze-thaw cycles and sub... |
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Keywords: | freeze-thaw cycle subgrade slope slope stability strength reduction method |
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