摘要
Abstract
To address the issue of pile foundation bearing capacity for a high pile wharf on deep and weak soil foundations,a high pile wharf in Yantai City,Shandong Province,was selected as the research object.The load-displacement curves of the pile foundation were obtained through on-site load testing,and the changes in pile foundation bearing capacity and axial force were analyzed.Theoretical calculation methods were also employed for verification.The results indicate that the load-displacement curves of the two test piles exhibit a slow-changing pattern with distinct inflection points.The allowable bearing capacity of the pile foundation was determined to be 5 600 kN,and the ultimate bearing capacity was 8 000 kN.This demonstrates that the test method and results are repeatable and reliable.The axial force distribution of the two test piles is consistent,showing an"upper large,lower small"pattern under different load levels.At the same position along the pile body,the greater the external load,the higher the axial force.The measured load-displacement curve fits well with the calculated curve,but the calculated displacement values are larger than the measured values under the same load conditions,indicating a conservative estimate of settlement.关键词
软弱土地区/高桩码头/桩基础/承载力/现场测试Key words
soft soil areas/high pile wharf/pile foundation/carrying capacity/on site testing分类
交通工程
