预应力管桩在某扩宽公路盐渍湿软土地基处治设计中的应用  

Application of Prestressed Tube Pile in Treatment Design for Saline Wet Soft Soil Foundation in a Widened Highway

作　　者：李艳明 李凤岭 卫亚辉 LI Yanming;LI Fengling;WEI Yahui(Shanxi Jiaoke Highway Survey&Design Institute Co.,Ltd.,Taiyuan,Shanxi 030032,China)

机构地区：[1]山西交科公路勘察设计院有限公司,山西太原030032

出　　处：《山西交通科技》2023年第5期45-48,共4页Shanxi Science & Technology of Transportation

摘　　要：以某扩宽公路盐渍湿软土地基处治为依托,结合其工程地质、水文条件及现场实际情况,分析了扩宽盐渍湿软土路基地基处治和计算方法,并对其进行稳定性、工后沉降及路拱横坡增大值的计算分析,根据计算分析结果进行处治方案比选设计,最终采用预应力混凝土管桩(PTC)对盐渍湿软土地基进行处治,在此为同类工程设计提供参考。Based on the treatment for the saline wet soft soil foundation in a widened highway,combined with the engineering geology,hydrological condition,and field situation,this paper analyzed the treatment and calculation methods for the foundation,and calculated and analyzed the stability,post⁃construction settlement,and increase of the transverse slope of the road arch.According to the calculation result,the treatment schemes were compared and designed.Finally,the prestressed concrete tube pile(PTC)was adopted to treat the saline wet soft soil foundation,providing a reference for similar engineering designs.

关 键 词：盐渍湿软土地基 CFG桩 PTC桩 稳定性 沉降 

分 类 号：U412.222[交通运输工程—道路与铁道工程]