沉降控制条件下的基桩设计实例
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。
Abstract: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.
中文标题:
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1,,姚晓旭2,张波1,郭哲1
Zhang Wu1,,Yao Xiaoxu2,Zhang Bo1,Guo Zhe1
作者简介:张 武,男,1963年生,博士,研究员,主要从事地基处理、桩基础技术的工程实践与理论研究。E-mail:zhangwu422@163.com
通讯地址:
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
1.ChinaAcademyofBuildingResearch,Beijing100013,China 2.HenanGeologicalInvestigation&DesignInstituteCo.,Ltd.,Zhengzhou450014,Henan,China
中图分类号:TU 473.1+2
doi:10.3969/j.issn.1007-2993.2023.05.007
出版物:岩土工程技术
收稿日期:2022-05-31
修回日期:2022-08-25
录用日期:2022-12-09
网络出版日期:2023-10-16
刊出日期:2023-10-16
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
Key words:vertical compressive stiffness of single pile,design maximum load,working load,foundation pile settlement,residual settlement,rebound degree
文档包含图片数量:图片(4)张
文档包含表格数量:表格(6)个
参考文献:
[1]JGJ 94—2008 建筑桩基技术规范[S].
[2]张 武,高炳琪,姚晓旭,等. 均匀地基中的单桩竖向抗压刚度[J]. 建筑科学,2019,35(3):29-37. doi: 10.13614/j.cnki.11-1962/tu.2019.03.005
[3]张 武,姚晓旭,高炳琪,等. 层状地基中的单桩竖向抗压刚度[J]. 建筑科学,2019,35(9):39-45. doi: 10.13614/j.cnki.11-1962/tu.2019.09.007
[4]张 武,姚晓旭,高炳琪,等. 单桩竖向抗压刚度的集成刚度法[J]. 建筑科学,2021,37(5):37-43. doi: 10.13614/j.cnki.11-1962/tu.2021.05.005
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[12]BOWLES J E. Foundation Analysis and Design[M]. New York, US: The McGraw-Hill Companies, Inc., 1996.
[13]张 武,张 波,姚晓旭,等. 刚果共和国布拉柴维尔商务中心桩基设计[J]. 建筑科学,2017,33(11):1-6. doi: 10.13614/j.cnki.11-1962/tu.2017.11.001
[14]张 武. 竖向抗压单桩承载力实例分析[J]. 建筑科学,2008,24(1):75-79. doi: 10.3969/j.issn.1002-8528.2008.01.020
[15]张 武,高炳琪,姚晓旭,等. 后注浆方式对灌注桩承载力影响的试验研究[J]. 建筑科学,2018,34(11):83-87. doi: 10.13614/j.cnki.11-1962/tu.2018.11.012
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