| 基于目标的高速公路差异沉降主动控制研究 |
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| 引用本文： | 刘靖,王选仓,高志伟.基于目标的高速公路差异沉降主动控制研究[J].筑路机械与施工机械化,2010,27(8):48-50,53. |
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| 作者姓名： | 刘靖 王选仓 高志伟 |
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| 作者单位： | 1. 河北省保定市交通局,河北,保定071000
2. 长安大学公路学院,陕西,西安,710064 |
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| 摘 要： | 通过建立有限元模型．对路面结构因差异沉降引起的附加应力进行分析，并考虑路面结构的疲劳衰减性能，提出了高速公路路基差异沉降控制目标为变坡率小于0．37％。将路基差异沉降分为4个级别，并对实际工程竣工后可能出现的路基差异沉降进行预估，对于不同级别差异沉降提出相应的处治措施，达到差异沉降主动控制的目的。
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| 关 键 词： | 差异沉降 沉降预估 有限单元法 主动控制 |
Study on Initiative Control of Expressway Differential Settlement Based on Goal |
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| LIU Jing,WANG Xuan-cang,GAO Zhi-wei.Study on Initiative Control of Expressway Differential Settlement Based on Goal[J].Road Machinery & Construction Mechanization,2010,27(8):48-50,53. |
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| Authors: | LIU Jing WANG Xuan-cang GAO Zhi-wei |
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| Institution: | 1 .Baoding Bureau of Transportation of Hebei Province, Baoding 071000, Hebei, China 2.School of Highway, Chang＇an University, Xi＇an 710064, Shaanxi, China) |
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| Abstract: | Additional stress in pavement structure caused by differential settlement is analyzed by establishing finite element model. Considering the fatigue behavior of pavement, the goal of differential settlement control is proposed, which is to keep the grade changing rate lower than 0.37%. The differential settlement is graded as four levels, and the possible values of subgrade after the construction are estimated. Corresponding measures are presented to help achieve the goal of initiative control of differential settlement. |
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| Keywords: | differential settlement settlement estimation finite element method initiative control |
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