岩土工程学报2024，Vol.46Issue(z1)：264-267,4.DOI:10.11779/CJGE2024S10049
桩网复合地基离心模型试验中桩顶轴力测试方法研究
Test method for axial force at pile top in centrifugal model tests on pile-net composite foundation
摘要
Abstract
The pile-net composite foundation is a common soft soil reinforcement measurement.In order to analyze the pile-soil stress ratio,it is necessary to measure the axial force at the pile top and the soil pressure between piles in the centrifugal model tests.The mini-earth pressure cells have been widely used in the centrifugal model test,but there is no commonly accepted mini-axial force sensor.In this study,a special method is developed for testing the axial force at the top of piles in the centrifugal model tests by using pile caps.Great linearity is shown through the calibration data.The effects of the proposed method are verified by the pile-soil stress ratio results from the centrifugal model test and numerical analysis of a pile-net composite foundation.关键词
桩网复合地基/离心模型试验/桩顶轴力/测试/桩土应力比Key words
pile-net composite foundation/centrifugal model test/axial force at pile top/measurement/pile-soil stress ratio分类
土木建筑引用本文复制引用
张军杰,顾行文,任国峰,周春儿,王年香..桩网复合地基离心模型试验中桩顶轴力测试方法研究[J].岩土工程学报,2024,46(z1):264-267,4.基金项目
国家重点研发计划"交通基础设施"重点专项2023年度项目(2023YFB2604200) （2023YFB2604200）
