孔压静力触探测试数据在桩基承载力评估中的应用  

Application of CPTU data on pile bearing capacity assessment

作　　者：何智敏[1] 孔明[1] 马秋柱[1] 

机构地区：[1]中交第四航务工程勘察设计院有限公司,广东广州510230

出　　处：《水运工程》2013年第7期35-38,共4页Port & Waterway Engineering

摘　　要：阐述了主要的桩基承载力CPTU评估方法,并分别对其适用性进行探讨。结合港珠澳大桥区域的地层特性,采用修正后的CPTU锥尖阻力与侧摩阻力数据与试桩资料中的单位桩端阻力与单位桩侧摩阻力进行对比分析,提出该区域的桩基承载力CPTU初步评估方法。该法以修正后的参数为基础,能更真实地预测单桩承载力,且具有较好的工程实用性与可操作性。This paper elaborates main methods for pile capacity assessment based on CPTU, and analyzes the applicability of them. Combining with the regional soil layer＇s engineering property, this paper analyzes the corrected CPTU data and two pile load testing results, and proposes a new regional pile capacity prediction method, based on CPTU, which may serve as reference for the engineering design. Due to the use of the corrected CPTU data, this method can predict more accurately the pile capacity. Moreover, it also has good engineering practicality and operability.

关 键 词：孔压静力触探 桩端承载力 桩侧摩阻力 锥尖阻力 

分 类 号：TU413[建筑科学—岩土工程]