摘要
基桩的承载能力是进行桩基础设计的依据,而当前对承载力试验中加载反力装置所带来的桩身沉降精度误差尚未引起重视。本文依托工程实例,选取压重平台反力装置进行现场静载试验,针对试验中基桩沉降的精度问题,采用高精度观测仪器同步数据监测。本文利用ABAQUS有限元软件建模,从数值计算的角度对桩身沉降位移及桩顶平面土层变化情况进行探讨。
The bearing capacity of a foundation pile is the basis for the design of the pile foundation,but the accuracy error of the pile settlement caused by the loading reaction device in the bearing capacity test has not been paid attention to.Based on the engineering example,this paper selected the reaction device of the ballast platform to conduct the field static load test.Aiming at the accuracy of the settlement of the foundation pile in the test,the high-precision observation instrument was used to monitor the data synchronously.At the same time,this paper combined theory with practice,used ABAQUS finite element software to model,and discussed the settlement displacement of pile body and the change of plane soil layer at the top of pile from the perspective of numerical calculation.
作者
薛原
XUE Yuan(Institute of Geophysical and Geochemical Survey Technology of Anhui Province,Hefei 230022,Anhui,China)
出处
《资源信息与工程》
2020年第3期77-81,共5页
Resource Information and Engineering
关键词
桩基础
静载荷试验
精度
数值模拟
pile foundation
static load test
precision
numerical simulation
