软弱土地区高桩码头桩基承载力分析  

Analysis of the bearing capacity of pile foundation for high pile wharf in weak soil areas

作　　者：杨文昱 YANG Wen-yu

机构地区：[1]山东港通工程管理咨询有限公司,山东烟台264000

出　　处：《智能城市》2025年第2期158-160,共3页Intelligent City

摘　　要：为解决深厚软弱土地基高桩码头的桩基承载力问题,以山东省烟台市某高桩码头为研究对象,运用现场载荷试验的方法获得桩基荷载-位移曲线,分析桩基承载力及桩基轴力的变化情况,并采用理论计算方法进行验证。结果表明,2根试桩的荷载-位移曲线均呈现缓慢变化型,曲线拐点明显,可判断桩基的容许承载力为5600 kN,极限承载力为8000 kN,表明所采取的试验方法和试验结果具有可重复性,测试结果准确可靠;2根试桩的桩身轴力符合性基本一致,不同的荷载等级下的桩身轴力分布均呈现“上大下小”的变化规律;在相同的桩身位置处,外荷载值越大,桩身轴力也越大;实测荷载-位移曲线与计算荷载-位移曲线拟合较好,但在相同的荷载条件下,计算得到的位移值比实测偏大,沉降结果偏于保守定。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 5600 kN,and the ultimate bearing capacity was 8000 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 

分 类 号：U656.1[交通运输工程—港口、海岸及近海工程]