| 江宇, 刘润, 梁超, 王小合, 张清涛.海洋钢管桩基础轴向承载力计算新方法的适用性研究[J].海洋工程,2025,(4):146~158 |
| 海洋钢管桩基础轴向承载力计算新方法的适用性研究 |
| Research on the applicability of new methods for calculating the axial bearing capacity of marine steel pipe pile foundations |
| 投稿时间：2024-07-15 |
| DOI：10.16483/j.issn.1005-9865.2025.04.013 |
| 中文关键词: 钢管桩 轴向承载力 海上风电 桩基础 土体强度 |
| 英文关键词:steel pipe pile axial bearing capacity offshore wind power pile foundation soil strength |
| 基金项目:国家重点研发计划项目（2022YFB2603000）；国家自然科学基金杰出青年科学基金项目（51825904） |
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| 摘要点击次数: 21 |
| 全文下载次数: 6 |
| 中文摘要: |
| 钢管桩是海洋工程中最为常见的基础形式，桩基轴向承载力的准确计算是海洋工程设计的重要环节。随着海洋钢管桩直径和桩长的不断增大以及海洋工程原位测试技术的进步，近年来提出了众多海洋桩基轴向承载力计算的新方法，但这些方法的适用性有待深入研究。对比分析了国内外计算海洋桩基础轴向承载力的土体强度参数法和基于静力触探（CPT）或孔压静力触探（CPTU）的经验方法，总结了各种方法计算时所需的土体参数、经验公式及适用范围，并结合江苏海上风电场钢管桩高应变动测结果和孔压静力触探原位测试数据，对比分析了国内外各种桩基轴向承载力方法计算结果的差异，推荐采用新西兰规范、《码头结构设计规范》、Price法或Tumany法对中国海域钢管桩基础进行承载力评估。 |
| 英文摘要: |
| Steel pipe piles are the most common foundation type in offshore engineering, and the accurate calculation of their axial bearing capacity is a crucial aspect of offshore engineering design. With the increasing diameter and length of marine steel pipe piles, along with advancements in in-situ testing technology, numerous new methods for calculating the axial bearing capacity of marine piles have been proposed in recent years. However, the applicability of these methods requires further investigation. This paper conducts a comparative analysis of the soil strength parameter method and the empirical methods based on the cone penetration test (CPT) or the piezocone penetration test (CPTU) for calculating the axial bearing capacity of marine pile foundations both domestically and internationally. It summarizes the required soil parameters, empirical formulas, and applicable ranges of various methods. By integrating high-strain dynamic test results of steel pipe piles from the Jiangsu offshore wind farm with in-situ CPTU test data, the paper analyzes the differences in calculation results among various domestic and international methods for evaluating the axial bearing capacity of pile foundations. It is recommended to use the New Zealand standards, Design specification for wharf structures, the Price method, or the Tumany method to assess the bearing capacity of steel pipe pile foundations in China’s offshore regions. |
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