首页|自平衡法静载试验在北部湾海域超长大直径桩基中的应用

自平衡法静载试验在北部湾海域超长大直径桩基中的应用

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本文以北海市西村港跨海大桥项目为依托,针对超长大直径桩基竖向抗压极限承载力检测,选取自平衡法静载试验方法作为研究对象,探讨该方法在北部湾海域桩基工程应用的可行性.通过对测试系统、荷载箱埋设位置等关键参数选取,以及加载过程中荷载与向上、向下位移对应关系,绘制荷载-位移(Q-s)曲线、位移-时间对数(s-lgt)曲线,并进行曲线特征分析.结果表明,本工程3 根试桩单桩竖向抗压承载力特征值均满足设计要求.研究成果可为北部湾海域同类工程施工提供一定借鉴.
Application of Self-Balanced Method Static Load Test of Super Long and Large Diameter Pile Foundation in Beibu Gulf Area
This article focuses on the detection method of the ultimate vertical compressive bearing capacity of super long and large-diameter pile foundations,using the Xicun Port Cross-Sea Bridge project in Beihai City as a reference.The study selects the equilibrium method static load test as the research object and explores the feasibility of applying this method in pile foundation engineering in the Beibu Gulf area.By selecting key parameters such as the testing system and the position of the load box installation,as well as analyzing the corresponding relationship between the load and the upward and downward displacement during the loading process,the load-displacement(Q-s)curve and displacement-time logarithmic(s-lgt)curve are plotted,and the curve characteristics are analyzed.The results show that the characteristic values of the vertical compressive bearing capacity of the three test piles in this project all meet the design requirements.These research findings provide valuable experience for the construction of similar projects in the Beibu Gulf area.

marine areapile foundation detectionstatic load testself-balanced methodbearing capacity of pile foundation

陈强

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中铁二十局集团第三工程有限公司 重庆 400065

海洋区域 桩基检测 静载试验 自平衡法 桩基承载力

广西科技计划项目

桂科AB23026124

2024

铁道建筑技术
中国铁道建筑总公司

铁道建筑技术

影响因子:0.539
ISSN:1009-4539
年,卷(期):2024.(2)
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