泡沫砼在桥头软土地基处理中的效果研究  

Research on the Effect of Foam Concrete in the Soft Soil Foundation Treatment of the Bridgehead

作　　者：王天宝 WANG Tianbao(Haiyan Communications Group Co.,Ltd.,Jiaxing,Zhejiang Province,314300 China)

机构地区：[1]海盐县交通投资集团有限公司,浙江嘉兴314300

出　　处：《科技资讯》2023年第19期104-108,共5页Science & Technology Information

摘　　要：该文以海盐县黄桥改建工程的桥头软土地基处理为研究背景,首先阐述了泡沫砼在海盐地区桥头软土地基的应用情况及其基本原理,其次结合黄桥改建工程实例总结泡沫砼的设计参数与施工工艺,最后采用理正软件建立的分析模型,模拟分析新旧路基在竣工后的不均匀沉降规律。结果表明:相较于天然地基及水泥搅拌桩复合地基的工后沉降能降低80.6%和77.1%,在基准期内沉降变化值显著变小,采用泡沫砼作为软土地基中台背填料的效果较好。Taking the soft soil foundation treatment of the bridgehead of the reconstruction project in Huangqiao,Haiyan Country as the research object,this paper first expounds the application and its basic principle of foam concrete in the soft soil foundation of the bridgehead in the Haiyan area,then summarizes the design parameters and construction technology of foam concrete in combination with the example of the reconstruction project in Huangqiao,and finally uses the analysis model established by Lizheng software to simulate and analyze the uneven settlement law of the new and old subgrade after completion.The results show that compared with the natural foundation,the post-construction settlement of the cement mixing pile composite foundation can be reduced by 80.6% and 77.1%,the settlement change value is significantly smaller during the reference period,and that the effect of using foam concrete as abutment backfill in soft soil foundation is better.

关 键 词：软土地基 台背路基 泡沫砼 新旧路基沉降 

分 类 号：TU47[建筑科学—结构工程]