泡沫混凝土路堤底部压力变化规律及工程应用  

Bottom pressure change law and engineering application of foam concrete road embankment

作　　者：彭子茂 夏新华 叶林杰 吴迪高 匡渝阳 贺鸿飞 PENG Zimao;XIA Xinhua;YE Linjie;WU Digao;KUANG Yuyang;HE Hongfei(Hunan Transport Vocational and Technical,Changsha 410132,China;Institutes of Technology of Changsha,Changsha 410114,China;Zhejiang Communications New Materials Co.Ltd.,Hangzhou 311400,China;Zhejiang Daying Construction Co.Ltd.,Hangzhou 311203,China)

机构地区：[1]湖南交通职业技术学院,湖南长沙410132 [2]长沙理工大学,湖南长沙410114 [3]浙江交工新材料有限公司,浙江杭州311400 [4]浙江大盈建设有限公司,浙江杭州311203

出　　处：《新型建筑材料》2021年第9期54-59,共6页New Building Materials

摘　　要：为研究不同置换形式下泡沫混凝土路堤底部基底压力的变化规律,结合某工程案例,采用理论计算和数值分析方法分析了路用泡沫混凝土的6种不同置换形式对基底压力的变化规律。结果表明:6种工况下的理论计算基底压力均呈先降低后提高的规律;有限差分模拟结果显示,工况四与工况六2种工况的基底压力均呈梯形分布,另外4种工况下有限差分模拟的基底压力虽然与理论计算结果差异较大,但变化趋势规律较一致;修正后的泡沫混凝土路堤基底的压力之间差异较小;所提出的路用泡沫混凝土置换路堤的基底压力考虑路堤刚度影响计算方法可为类似工程应用提供理论参考。In order to study the change law of the base pressure at the bottom of the foam concrete embankment under different replacement forms,combined with an engineering case,the variation of base pressure caused by six different replacement forms of pavement foam concrete was analyzed through theoretical calculation and numerical analysis methods.The results show that the base pressure of the theoretical calculation under the six working conditions decreases at first and then increases,the finite difference simulation results show that the base pressure of the fourth and sixth working conditions is ladder distribution,and the basement pressure of the finite difference simulation under the other four working conditions is quite different from the theoretical calculation results,but the changing trend is consistent.The difference between the base pressure of the modified foam concrete replacement embankment is small,and the proposed calculation method considering the influence of embankment stiffness on the base pressure of the foam concrete replacement embankment can provide theoretical guidance for similar engineering applications.

关 键 词：路堤置换 泡沫混凝土 基底压力 理论计算 数值模拟 

分 类 号：TU528.2[建筑科学—建筑技术科学]