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长安综合试车场高填方路堤施工沉降控制数值模拟

DOI: 10.3969/j.issn.1674-0696.2012.02.20, PP. 257-260

Keywords: 公路工程,高填方路堤,数值模拟,highwayengineering,highfillembankment,numericalsimulation

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Abstract:

:?相对于高速公路而言,汽车试车场的建设具有技术标准高、施工难度大、项目管理及施工工艺复杂等特点,而且在我国它的设计和施工没有现成的标准和规范。通过对长安综合试车场(垫江)高填方路堤试验路段的高速环道断面和标准坡道断面进行数值模拟分析,得到了试车场典型断面高填方的沉降变形规律,分析了黏土路基经过石灰土换填后典型断面路堤的沉降变形情况。研究表明:石灰土对高填方路堤的沉降变形和稳定性有着很好的改良作用,有效的提高了路堤的强度和稳定性,减小了路堤的沉降变形以及表面沉降差。

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