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国外文献 > 1.轴承 > 1. 基础理论与机制 > 承载与性能

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标 题： A case study on the application of pile driving analyzer (PDA) and CAPWAP analysis to bearing capacity of piles
关于桩锤分析仪（PDA）和 CAPWAP 分析在桩承载力评估中的应用的案例研究
作 者： Kazem Fakharian
关键词： Pile  [桩]
Wave equation analysis  [ 波动方程分析]
Bearing capacity  [ 承载力]
Hammer  [ 锤子]
Dynamic pile testing  [ 动态桩测试]
出版年： 2000
会议名： The 10th International Offshore and Polar Engineering Conference (ISOPE'2000), vol.II: Risers, Mooring and Cable Mechanics, Offshore and Arctic Pipelines, Underwater Vehicles and Control, Geotechnical Engineering
第十届国际海洋及极地工程大会（ISOPE'2000），卷二：立管、系泊与电缆力学、海洋及北极管道、水下交通工具与控制、土木工程
届 次： 10th
摘 要： Driven piles are vastly used in offshore structures for which adequate prediction of bearing capacity is of great importance. A case study is presented here on the application of dynamic pile testing to bearing capacity determination of a pile embedded in loose to compact sand and silt layers. The possibility of liquefaction of the loose layers as a result of cyclic loads such as earthquake, and therefore, reduction in shaft resistance of the pile are investigated. The Pile Driving Analyzer (PDA) was used for dynamic testing of the pile during driving by the hammer. The data was then further evaluated by the rigorous numerical analysis program CAPWAP to determine the static bearing capacity, and to distinguish between the tip resistance and the distribution of the shaft resistance along the pile. The results at the end of driving and also after a 30-minute wait indicated that the shaft resistance had gained an additional strength of 42% as a result of soil set up.

贯入式桩在海上结构中被广泛应用，因为对其承载力的准确预测至关重要。本文就动态桩测试在松散至密实砂层和粉砂层中嵌入桩的承载力测定中的应用进行了案例研究。研究了由于诸如地震等循环荷载导致松散层液化的可能性，以及由此引起的桩轴阻力的减小。在锤击过程中使用了贯入式分析仪（PDA）对桩进行动态测试。然后，通过严格的数值分析程序 CAPWAP 对数据进行了进一步评估，以确定静态承载力，并区分桩尖阻力和沿桩的轴阻力分布。贯入结束时以及等待 30 分钟后的结果表明，由于土壤固结，桩的轴阻力增加了 42%的额外强度。
中文内容为网络AI翻译，专业术语未必准确，仅供参考。

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