沉降控制条件下的基桩设计实例  

An Example of Foundation Pile Design under Settlement Control

作　　者：张武 姚晓旭 张波 郭哲 Zhang Wu;Yao Xiaoxu;Zhang Bo;Guo Zhe(China Academy of Building Research,Beijing 100013,China;Henan Geological Investigation&Design Institute Co.,Ltd.,Zhengzhou 450014,Henan,China)

机构地区：[1]中国建筑科学研究院有限公司,北京100013 [2]河南省建院勘测设计有限公司,河南郑州450014

出　　处：《岩土工程技术》2023年第5期553-558,共6页Geotechnical Engineering Technique

摘　　要：以西非某集装箱码头轨道桩基优化设计为工程实例,分别采用现行中国规范方法和单桩竖向抗压刚度方法估算荷载作用下的桩顶位移,对比分析和试桩检测结果表明,采用单桩竖向抗压刚度方法可以简捷地评估在工作荷载下的桩顶沉降、规定试验荷载下的最大沉降、经历最大加载后卸载的桩顶残余沉降等,满足国际专业标准中桩基沉降控制的技术要求。Through an engineering example of optimal design of track pile foundation of a container terminal in West Africa,the displacement of pile top under load was estimated by comparing the current Chinese code method with the vertical compressive stiffness method of single pile.The engineering example shows that the vertical compressive stiffness method of single pile can simply evaluate the settlement of pile top under working load,the maximum settlement under specified test load,and the residual settlement of pile top after unloading after the maximum load,which meets the technical requirements of pile foundation settlement control in international professional standards.

关 键 词：单桩竖向抗压刚度 设计最大荷载 工作荷载 基桩沉降 残余沉降 回弹率 

分 类 号：TU473.12[建筑科学—结构工程]