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基于理论和实测的路基沉降混合预测方法

, PP. 34-38

Keywords: 道路工程,路基沉降,分层总和法,预测模型,曲线拟合

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Abstract:

为了准确的预测路基沉降,基于土基的固结理论,引入平均附加应力系数的概念,对路基沉降计算传统的分层总和法进行了改进;提出了考虑路基施工过程的路基最终沉降量计算理论与计算公式;建立了基于改进的分层总和法及实测的沉降量预测新模型;编制了基于改进的分层总和法和实测数据的路基沉降预测计算程序Settlement_Calculation;采用新的计算方法和计算程序,对安徽省某二级公路试验路段进行路基沉降观测和理论计算,得到的沉降预测值和实测值相对误差小于2.0%。

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