PHC空心管桩在水库段地基处理中的应用  

Application of PHC Hollow Pipe Pile in Foundation Treatment of Reservoir Section

作　　者：苏鹏 Su Peng(Shanxi Traffic Planning Survey and Design Institute Co.,Ltd.,Taiyuan 030032,China)

机构地区：[1]山西省交通规划勘察设计院有限公司,太原市030032

出　　处：《北方交通》2023年第1期38-41,共4页Northern Communications

摘　　要：以国道208线晋中长治界至屯留小河北段改扩建工程为依托工程,采用PHC空心管桩对其K952+300~K952+600水库段地基进行处治,并对处治后的复合地基进行了承载能力验算和工后沉降变形验算。由验算结果可知,采用PHC预制空心管桩进行地基处理,不仅能大幅提高水库段地基的承载能力,还能通过增加桩长有效降低工后沉降变形,满足工程要求。Based on the reconstruction and expansion project of Jinzhong Changzhi to Tunliu Xiaohebei section of national highway 208,PHC hollow pipe piles are used to treat the foundation of K952+300~K952+600 reservoir section,and the checking calculation of bearing capacity and post construction settlement deformation of the treated composite foundation is carried out.It can be seen from the checking calculation results that,the foundation treatment is carried out with PHC prefabricated hollow pipe pile,which can not only greatly improve the bearing capacity of the foundation of the reservoir section,but also effectively reduce the post construction settlement deformation by increasing the pile length,meeting the project requirements.

关 键 词：PHC空心管桩 水库段地基 地基处理 承载能力验算 工后沉降变形验算 

分 类 号：U416.1[交通运输工程—道路与铁道工程]