基于静载试验的大直径桩检测及其内力研究

A Research on Detection and Internal Force of Full Diameter Piles Based on Static Loading Test

张鑫 ¹赵建军 ²刘宇¹

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作者信息

1. 辽宁地矿建设集团有限公司,辽宁沈阳 110013
2. 辽宁省地质勘探矿业集团有限责任公司,辽宁沈阳 110032
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摘要

对某工程的桩基础检测试验开展研究,采用静载试验确定试验桩的极限承载力、沉降量、桩侧摩阻力.采用FLAC3D进行数值模拟,结果与现场试验数据较为接近,模拟能为试验提供一定依据;基于荷载传递理论,采用Seed和Reese双曲线模型,通过对桩侧摩阻力和沉降量进行回归分析,拟合得到桩的荷载传递函数,将数据代入MATLAB进行数值计算,得到的Q-s曲线与现场试验相吻合,说明两种方法可为本地区类似工程提供借鉴.

Abstract

The study is conducted on the pile foundation testing of a specific engineering project.Static load tests are employed to ascertain the ultimate bearing capacity,settlement,and lateral friction resistance of the test piles..FLAC3D is used for numerical simulation,and the results are similar to the field test data,so the simulation can provide some basis for the test.Based on the load transfer theory,using Seed and Reese hyperbolic model,through the regression analysis of pile side friction and displacement data,the load transfer function parameters of pile are fitted.The Q-ss curve obtained by MATLAB numerical calculation is in good agreement with the test.The two methods can provide reference for similar projects in this area.

关键词

大直径/承载力/检测/FLAC3D/荷载传递

Key words

full diameter/capacity/dection/FLAC3D/load transfer

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出版年

2024

黄河科技学院学报

ISSN：

参考文献量6

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