摘要
本文首先分析了现今桩基沉降计算中产生较大误差的原因 ,以及原位试验成果与地基土力学性质上的密切相关性 ,建议采用原位试验成果 (包括静力触探试验及标准贯入试验等 )替代桩基沉降计算中由室内土工试验确定的、离散性较大的压缩模量 ,进而提出桩基沉降计算的经验方法。通过对 12 0项工程计算与实测沉降对比表明 ,该法计算简单 ,概念明确 。
The reasons on the dissatisfied results for the settlement calculation of pile foundation by current methods are analyzed, and the features on the correlation between in situ tests and mechanical properties of subsoil are studied. It is suggested that the compression modulus values which are discrete and difficult to be gotten from laboratory tests should be substituted by the in situ testing results(including CPT and SPT). In addition, an empirical method which has been used in the settlement calculation for 120 projects is proposed to calculate the settlement of pile foundation.
出处
《工程勘察》
CSCD
北大核心
2003年第2期42-44,共3页
Geotechnical Investigation & Surveying
关键词
桩基
沉降量
原位测试
压缩模量
群桩
in situ test
settlement calculation
compression modulus
pile group
