| 路堤侧向变形性状及预测模型研究 |
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| 引用本文： | 余闯,刘松玉.路堤侧向变形性状及预测模型研究[J].岩土力学,2008,29(5):1305-1309. |
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| 作者姓名： | 余闯 刘松玉 |
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| 作者单位： | 1.温州大学 建筑与土木工程学院，温州 325035；2.东南大学 交通学院岩土工程研究所，南京 210096 |
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| 基金项目： | 东南人学优秀博士学位论文基金
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高等学校博士学科点专项科研项目 |
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| 摘 要： | 结合大量实测资料和已有的研究成果，分析了路堤荷载作用下水平向应变随深度的变化规律，得出了侧向变形沿深度呈“弓”型分布的变化规律；提出了符合该变化规律的预测模型及参数求解方法，模型中a、b和c等3个待定参数能简单地求出。工程实践表明，该预测模型不仅反映了侧向变形随深度的变化规律，且有一定的精度，能反映出最大侧向变形发生的位置，应用效果良好。
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| 关 键 词： | 路堤 侧向变形 预测模型 水平向应变 |
| 文章编号： | 1000-7598-(2008)05-1305-05 |
| 收稿时间： | 2007-12-20 |
| 修稿时间： | 2007年12月20 |
Study on the characteristic and prediction model for lateral deformations under embankments |
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| YU Chuang,LIU Song-yu.Study on the characteristic and prediction model for lateral deformations under embankments[J].Rock and Soil Mechanics,2008,29(5):1305-1309. |
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| Authors: | YU Chuang LIU Song-yu |
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| Institution: | 1. College of Architecture and Civil Engineering, Wenzhou University, Wenzhou 325035, China; 2. Institute of Geotechnical Engineering, College of Transportation, Southeast University, Nanjing 210096, China |
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| Abstract: | According to the distribution of horizontal strain in the soil under embankment loads, the characteristic of lateral deformations along the depth is analyzed based on measured data and existing research results. The results show that the typical curve is bow-shaped. On this point, the predicted model is established to forecast the lateral deformation. The three parameters in the model, a, b and c can be easily solved. This model has been applied to study 2 cases. The model can reflect both the distribution of lateral deformation along depth and the location where the maximum deformation occurs. The comparisons demonstrate that the predicted deformations are in good agreements with the measured data. |
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| Keywords: | embankment lateral deformation prediction model horizontal strain |
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