| 加筋路堤稳定性综合分析方法 |
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| 引用本文： | 陈建峰,石振明,孙红.加筋路堤稳定性综合分析方法[J].岩土力学,2004,25(Z2):433-436. |
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| 作者姓名： | 陈建峰 石振明 孙红 |
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| 作者单位： | 1. 同济大学,地下建筑与工程系,上海,200092
2. 上海交通大学,船舶海洋与建筑工程学院,上海,200030 |
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| 基金项目： | 上海市重点学科建设项目资助(No.2004-07-01沪教委[2001]44). |
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| 摘 要： | 软土路基上加筋路堤的稳定性可以采用圆弧滑动极限平衡法进行分析,加筋路堤的破坏可以归纳为圆弧内加筋的破坏、圆弧外加筋的破坏以及加筋路堤的整体破坏.提出了计算加筋路堤稳定系数K的3个不同的稳定系数表达式,分别称之为圆弧内部稳定系数Kn、圆弧外部稳定系数Kw和整体稳定系数Kz,加筋路堤稳定系数K取其中的最小值.采用该方法对一加筋路堤破坏实例进行稳定性综合分析,得到的对应于最小稳定系数的滑移面与实际滑移面比较吻合.
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| 关 键 词： | 道路工程 加筋路堤 极限平衡法 稳定系数 |
| 文章编号： | 1000-7598-(2004)增-0433-04 |
| 修稿时间： | 2004年2月25日 |
Overall analysis of stability of geosynthetic-reinforced embankments |
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| CHEN Jian-feng,SHI Zhen-ming,SUN Hong.Overall analysis of stability of geosynthetic-reinforced embankments[J].Rock and Soil Mechanics,2004,25(Z2):433-436. |
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| Authors: | CHEN Jian-feng SHI Zhen-ming SUN Hong |
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| Institution: | CHEN Jian-feng1,SHI Zhen-ming1,SUN Hong2 |
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| Abstract: | The stability of geosynthetic-reinforced embankments on soft soils can be analyzed by the method of circle slip. The failure manners of geosynthetic-reinforced embankments are as follows: failure of geosynthetic fiber inner circle slip, failure of geosynthetic fiber outer circle slip, and overall failure of embankments. Three different expressions of stability factor are proposed, which are respectively called inner stability factor Kn, outer stability factor Kw, and overall stability factor Kz. The stability factor of geosynthetic-reinforced embankments K equals to the minimum value of Kn, Kw, and Kz. A case of embankment loading to failure is analyzed by this method; and the result shows that the circle slip corresponding to the minimum stability factor is very close to the in-situ failure slip. |
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| Keywords: | road engineering geosynthetic-reinforced embankment limit equilibrium method stability factor |
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