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。
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.
出处
《公路》
北大核心
2012年第7期49-53,共5页
Highway
关键词
拓宽工程
有限元
台阶开挖
路基拼接
widening project
finite element method
step excavation
embankment splicing
