砂性土打入桩竖向承载力计算方法评价  

Database Assessment of Design Methods for Axial Bearing Capacity of Driven Piles in Sand

作　　者：杨仲轩[1] 黄中原 郭望波 董晓强[2] 詹伟 YANG Zhongxuan;HUANG Zhongyuan;GUO Wangbo;DONG Xiaoqiang;ZHAN Wei(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China;College of Civil Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Key Laboratory of Road and Bridge Detection and Maintenance Technology Research of Zhejiang Province,Zhejiang Scientific Research Institute of Transport,Hangzhou 310023,China)

机构地区：[1]浙江大学建筑工程学院,杭州310058 [2]太原理工大学土木工程学院,太原030024 [3]浙江省交通运输科学研究院浙江省道桥检测与养护技术研究重点实验室,杭州310023

出　　处：《太原理工大学学报》2022年第4期766-771,共6页Journal of Taiyuan University of Technology

基　　金：国家自然科学基金资助项目(52020105003)。

摘　　要：海洋工程中常见的砂性土打入桩设计方法包括传统美国石油协会API法与基于静力触探试验CPT的ICP-05、UWA-05、Fugro-05和NGI-05等。但这些设计方法的可靠性与准确性仍然存在争议,其主要原因在于缺乏高质量的静载试验数据来对这些计算方法进行全面评价。为了对各种设计方法进行统一评价,并为新建立的打入桩设计方法提供原始数据进行标定和校验,因此建立具有广泛代表性的桩基承载力静载试验数据库尤为重要。基于以上原因,在国际上一些常用数据库的基础上进行扩充整理,组建了更具代表性的ZJU-ICL砂土数据库,其中包含118根高质量打入桩静载试验数据,并对该数据库采用统计方法对上述5种设计方法进行评价。The common design methods for axial bearing capacity of driven piles in sand include conventional API method and four CPT-based methods,namely ICP-05,UWA-05,Fugro-05,and NGI-05.However,the reliability and accuracy of these design methods are still unclear,mainly owning to the lack of high-quality static load test data that can be used to evaluate the performance of these methods.High-quality database is also useful in the verification of any new design method.A new ZJU-ICL sand database consisting of 118 high-quality static load tests was established by expanding some commonly used databases by adding new test data.The database assessment of five design methods for axial bearing capacity of driven piles in sand was performed by using statistical method.

关 键 词：打入桩 竖向承载力 砂性土 设计方法 数据库 

分 类 号：TU473[建筑科学—结构工程]