深厚新近填土地基超长灌注桩设计与施工数字化监控  

Design and Digital Construction Control of Super-Long Cast-in-Place Pile in Thick Recent Fill Foundation

作　　者：韦刚 韩伟[2] 张懿丹 杨荣强 周海滨 WEI Cang;HAN Wei;ZHANG Yidan;YANG Rongqiang;ZHOU Haibin(Guangxi Construction Engineering Group Holdings Co.,Ltd.,Nanning 530201,China;Guangxi University Design Institute Co.,Ltd.,Nanning 530007,China;China Construction Fifth Engineering Bureau Co.,Ltd.,Changsha 410004,China)

机构地区：[1]广西建工集团控股有限公司,广西南宁530201 [2]广西大学设计院有限公司,广西南宁530007 [3]中国建筑第五工程局有限公司,湖南长沙410004

出　　处：《红水河》2024年第5期135-140,共6页

摘　　要：笔者根据深厚新近填土地基特性和地形地貌特征,结合桩承载类型、负摩阻力系数、中性点取值和承载力验算,按摩擦型桩和摩擦-端承型桩两类进行桩基设计,并详述采用先进数字化检测技术控制超长灌注桩施工过程,避免传统方法带来的不确定性。通过单桩抗压静载试验与桩身完整性检测,8根不同桩长的单桩抗压极限承载力均达到9 000 kN且成桩质量良好,说明设计方法与施工数字化检测控制技术是成功的,可为类似桩基设计与施工提供借鉴。According to the characteristics of thick recent fill foundation and topography,combined with pile bearing type,negative friction coefficient,neutral point value and bearing capacity checking,the pile foundation design is carried out according to two types of friction pile and friction-end bearing pile,and the advanced digital detection technology is used to control the construction process of super long bored pile,so as to avoid the uncertainty caused by traditional methods.Through the static load test of single pile and the integrity test of pile body,the ultimate compressive bearing capacity of eight single piles with different pile lengths reached 9000 kN and the pile quality was good.It shows that the design method and construction digital detection and control technology are successful,which can provide reference for similar pile foundation design and construction,

关 键 词：深厚新近填土 超长灌注桩 桩基设计 数字化监控 

分 类 号：TU473.1[建筑科学—结构工程]