气泡混合轻质土在道路路基减荷中的应用  

Application of Bubble Mixed Light Soil in Road Subgrade Load Reduction

作　　者：温召旺 WEN Zhao-wang(Shenzhen Municipal Design&Research Institute Co.,Ltd.,Shenzhen 518029,China)

机构地区：[1]深圳市市政设计研究院有限公司,深圳518029

出　　处：《中国市政工程》2024年第6期27-30,156,共5页China Municipal Engineering

摘　　要：在新建道路工程中,为减少对现状建构筑物的影响,通常在路基填筑中采用轻质材料,常用的轻质材料有二灰、气泡混合轻质土及聚苯乙烯泡沫(EPS)等。文中结合工程实例并通过方案比选,介绍了在现状河堤顶进行城市道路建设设计中,利用气泡混合轻质土材料容重轻和自稳性的特点,同时解决了道路路基减荷和现状河堤支挡结构的受力及变形的要求,实现了工程安全可靠、技术可行及节省造价的目的。In the new road project,to reduce the impact on the existing buildings and structures,light materials are usually used in the subgrade filling.The commonly used light materials are limeash soil,bubble mixed light soil and polystyrene foam(EPS).Combining with engineering examples and through scheme comparison,this paper introduces the characteristics of light bulk weight and self-stability of bubble mixed light soil material in the design of urban road construction on the top of the existing river embankment,and solves the requirements of road subgrade load reduction and the stress and deformation of the existing river embankment retaining structure,so as to achieve the purposes of engineering safety,reliability,technical feasibility and cost saving.

关 键 词：路基 二灰 气泡混合轻质土 EPS 减荷 变形 

分 类 号：U416.1[交通运输工程—道路与铁道工程]