高速公路CFG桩复合地基压缩沉降变形分析  

Analysis of Compression Settlement Deformation of CFG Pile Composite Foundation on Highways

作　　者：贺缀 HE Zhui(China Railway 25th Bureau Group Second Engineering Co.,Ltd.,Nanjing 210046,China)

机构地区：[1]中铁二十五局集团第二工程有限公司,南京210046

出　　处：《价值工程》2024年第13期92-95,共4页Value Engineering

摘　　要：从复合地基变形控制重要性出发,结合云南丘砚高速公路CFG桩复合地基路基试验段,采用附加应力和分层总合法,详细计算了在公路路堤填料荷载下CFG桩复合地基产生的压缩沉降变形,通过实测数据和理论计算数据之间的偏差对比分析,对采用理论计算方法计算公路路堤荷载下CFG桩复合地基变形的准确性进行了对比验证。Starting from the importance of deformation control in composite foundation,combined with the experimental section of CFG pile composite foundation on Yunnan Qiuyan Expressway,the compressive settlement deformation of CFG pile composite foundation under road embankment filling load was calculated in detail using additional stress and layered total method.By comparing and analyzing the deviation between actual measurement data and theoretical calculation data,the accuracy of using theoretical calculation methods to calculate the deformation of CFG pile composite foundation under road embankment load was compared and verified.

关 键 词：复合地基 面积置换率 附加应力 变形 

分 类 号：U416.16[交通运输工程—道路与铁道工程]