| 双曲型曲线模型在路基沉降预测中的应用 |
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| 引用本文： | 何良德,姜 晔.双曲型曲线模型在路基沉降预测中的应用[J].河海大学学报(自然科学版),2009,37(2):200-205. |
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| 作者姓名： | 何良德 姜 晔 |
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| 作者单位： | 1. 河海大学交通学院、海洋学院,江苏,南京,210098
2. 江苏省交通规划设计院,江苏,南京,210005 |
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| 摘 要： | 对沉降速率与剩余沉降关系进行了研究,结果显示,双曲线模型反映了两者的二次非线性关系,指数曲线模型反映了两者的线性关系,2种模型剩余沉降的预测比值在1～2之间.提出了一种反映沉降速率与剩余沉降半立方(1.5次)非线性关系的双曲型曲线预测模型,给出了新模型参数的估算公式,证明了新模型预测的剩余沉降是指数曲线模型的1～1.5倍、双曲线模型的0.75～1倍.实例推算结果表明,双曲型曲线预测模型的推算值处于2种常用模型的推算值之间,且接近它们的平均值,预测结果的可靠度更高.
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| 关 键 词： | 路基 最终沉降量 双曲型曲线模型 增量衰减率 半立方关系 |
| 修稿时间： | 2009/4/21 0:00:00 |
Application of hyperbolic curves to prediction of embankment settlements |
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| HE Liang-de,JIANG Ye.Application of hyperbolic curves to prediction of embankment settlements[J].Journal of Hohai University (Natural Sciences ),2009,37(2):200-205. |
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| Authors: | HE Liang-de JIANG Ye |
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| Institution: | 1.College of Traffic;College of Ocean;Hohai University;Nanjing 210098;China;2.Jiangsu Provincial Planning & Design Institute for Communications;Nanjing 210005;China |
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| Abstract: | The relationship between settlement rate and residual settlement was studied.The results indicate that the relationship is quadratic non-linear for the hyperbolic curve method and linear for the exponential curve method,and the ratio of predicted residual settlements between the two kinds of models is 1-2.A hyperbolic curve model with a half-cube non-linear relationship between the settlement rate and the residual settlement is proposed.The corresponding formula for parametric estimation is also put forward... |
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| Keywords: | embankment final settlement hyperbolic type curve model attenuation ratio of increment half-cube relationship |
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