| 高速公路新老路基拼接的台阶开挖效果分析 |
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| 引用本文： | 沈国印.高速公路新老路基拼接的台阶开挖效果分析[J].公路,2012(7):49-53. |
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| 作者姓名： | 沈国印 |
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| 作者单位： | 河南交通投资集团有限公司 郑州市450016 |
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| 摘 要： | 对于高速公路拓宽工程必须采取有效的措施,减小新老路基的差异沉降,其中开挖台阶是新老路基结合部常用的技术措施之一。对5种不同的台阶开挖方式,采用有限元方法分析了老路边坡开挖和加宽路堤填筑对老路及地基变形特性的影响,对高速公路拓宽工程台阶开挖的设计与施工具有借鉴意义。
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| 关 键 词： | 拓宽工程 有限元 台阶开挖 路基拼接 |
Analysis of Effect of Step Excavation in Splicing Between New and Existing Embankment of Expressway |
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| SHEN Guo-yin.Analysis of Effect of Step Excavation in Splicing Between New and Existing Embankment of Expressway[J].Highway,2012(7):49-53. |
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| Authors: | SHEN Guo-yin |
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| Institution: | SHEN Guo-yin(Henan Traffic Investment Group Limited,Zhengzhou 450016,China) |
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| Abstract: | Effective measures must be taken to reduce the differential settlement between new and existing embankment for expressway widening projects.Step excavation is one of the usual technical measures for the combination of new and existing embankment.Finite element method is employed to analyze the influence of old road slope excavation and widening embankment filling on the deformation characteristics of old road and foundation through five different step excavation modes.The research has referential significance for the design and construction of step excavation in widening expressway. |
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| Keywords: | widening project finite element method step excavation embankment splicing |
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