道路拼接段沉降变形特性及地基处理研究

Research on Settlement and Deformation Characteristics of Road Splicing Sections and Foundation Treatment

为了提高拼接道路的建设水平,以某城市主干路改扩建项目为研究对象,利用有限元软件建立计算模型,分析了拼接道路的沉降变形特性,并提出了新旧路基差异沉降的计算方法。同时,分析了拼接道路的地基处理原则,提出了“泡沫轻质土+水泥搅拌桩复合地基”施工方案处理地基,并对拼接道路在地基处理前后的差异沉降进行对比。

In order to improve the construction level of spliced roads,takes the renovation and expansion project of a certain city's main road as the research object,uses finite element software to establish a calculation model,analyzes the settlement deformation characteristics of spliced roads,and proposes a calculation method for the differential settlement of new and old roadbeds.At the same time,the paper analyzes the foundation treatment principle of the spliced road,puts forward the scheme of"foam light soil+cement mixing pile composite foundation"to treat the foundation,and compares the differential settlement of the spliced road before and after the foundation treatment.