泡沫轻质土在高烈度地震区高填路基拼接中的应用  

Application of Foamed Lightweight Soil in High-Fill Subgrade Splicing in High-Intensity Earthquake Area

作　　者：姚金华 YAO Jin-hua(JSTI Group,Nanjing 210000,China)

机构地区：[1]苏交科集团股份有限公司,南京210000

出　　处：《工程建设与设计》2024年第20期139-141,共3页Construction & Design for Engineering

摘　　要：基于云南某高速公路枢纽路基拼宽的实例,对直接放坡、衡重式挡墙、泡沫轻质土路段方案综合考虑,结合现场材料造价、施工条件及施工后期可能产生的质量问题进行了比选,最终推荐采用泡沫轻质土方案。在此基础上,介绍了泡沫轻质土路堤强度、重度、抗滑、抗倾覆、护壁、顶面调平、护栏设置等设计要点。Based on the example of subgrade widening of an expressway junction in Yunnan,the schemes of direct slope,counterweight retaining wall and foamed light soil section are comprehensively considered.Based on the comparison and selection of site material cost,construction conditions and possible quality problems in the later stage of construction,the foam light soil scheme is finally recommended.On this basis,the design points of foam light soil road embankment strength,bulk weight,anti-slip,anti-overturning,wall protection,top surface leveling,guardrail setting are introduced.

关 键 词：高填路基拼接 泡沫轻质土 高烈度地区 顶面调平 护栏设置 

分 类 号：U414[交通运输工程—道路与铁道工程]