摘要
针对湛江组结构性黏土的工程地质特性,采用荷载传递法研究了湛江组结构性黏土中桩土荷载传递的性状。提出了一种新的考虑侧阻软化的传递函数,并用该函数来描述湛江土从结构性完好到结构性逐渐丧失直到残余强度这一变化过程。进一步分析了各参数对传递函数的影响。最后,用提出的传递函数对湛江组结构性黏土中试桩的实测数据进行了非线性拟合,拟合效果良好,证明了该函数能较好地反映湛江土中桩土荷载传递机理。
A new transfer function considering softening of soil is obtained for Zhanjiang group structural clay. The load transfer method is adopted to explore the load transfer properties between the pile and soil in Zhanjiang group structural clay. the curve comprehensively describes the behavior of the clay from undamaged to damaged. Mathematical method is used to analyses the parameters in the function,and the analytical solution is obtained. The nonlinear fitting results of the observation data using this function are much closed to the testing results. Thereby, it proves that the proposed transfer function perfectly reflects the load transfer mechanism of the soil.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2014年第9期109-113,共5页
Journal of Wuhan University of Technology
基金
国家自然科学基金(41372299)
关键词
湛江组结构性黏土
荷载传递函数
桩侧阻软化
Zhanjiang group structural clay
load transfer function
softening of pile side soil
