| 基于速率-沉降特征分析工后沉降预测方法适用性 |
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| 引用本文： | 顾建武,何良德,李林青.基于速率-沉降特征分析工后沉降预测方法适用性[J].水运科技信息,2012(2):85-88. |
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| 作者姓名： | 顾建武 何良德 李林青 |
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| 作者单位： | [1]镇江市交通工程质量监督站,镇江212003 [2]河海大学港口海岸与近海工程学院,南京210098 |
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| 摘 要： | 以曲线拟合法为主,研究了预测模型的速率与沉降的特征,指出了Gompertz模型、Usher模型等增长曲线预测工后沉降存在的不足,改进了二次三项式预测模型,提出了计算幂函数模型参数的简便方法。结合高速公路长期的工后观测资料,分析了常用方法的适用性和预测精度,并对工后沉降预测模型的选择提出了建议。
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| 关 键 词： | 公路工程 软土地基 工后沉降 预测 速率-沉降特性 |
Applicability of Post-construction Settlement Predicting Model Based on Velocity-settlement Relationship |
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| Gu Jianwu,He Liangde,Li Linqing.Applicability of Post-construction Settlement Predicting Model Based on Velocity-settlement Relationship[J].Transportation Science & Technology,2012(2):85-88. |
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| Authors: | Gu Jianwu He Liangde Li Linqing |
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| Institution: | 1.Quality Supervision of Zhenjiang Traffic Engineering,Zhenjiang 212003,China; 2.College of Harbor,Coastal and Offshore Engineering,Hohai University,Nanjing 210098,China) |
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| Abstract: | Based on curve fitting,the velocity-settlement relationship of the prediction model is studied.The disadvantages of growth curves such as the Gompertz model and the Usher model in predicting post-construction settlement is pointed out.The Trebling Quadratic Polynomial prediction model is optimized,also a more simple and convenient method of calculating the power function model parameters is brought up.Using long term of post-construction monitored data of highway,the applicability and precision of normal predicting methods is analyzed.In the end,a proposal is made in selecting post-construction settlement predicting model. |
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| Keywords: | highway engineering soft soil foundation post-construction settlement prediction velocity-settlement relationship |
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