摘要
对厦门市地铁某站点基坑的未扰动原状土土工试验数据的统计规律进行分析,并结合传统的回归分析方法研究了该地区花岗岩风化土层物性指标（含水率、孔隙比与天然密度）与变形指标之间的相关关系,给出了指标之间的关系式及相关系数,并从花岗岩残积土的属性对结果进行了评价与解析;研究表明,采用常规物性指标预估压缩系数具有一定的可靠性,但仍需考虑花岗岩残积土的结构强度对压缩系数的影响。研究成果可为花岗岩残积土地区资料欠缺的工程提供参考,为基础设计、土性判断等方面提供依据。
The geotechnical properties of the undisturbed completely weathered granitic residual soils at a metro station in Xiamen were statistically analyzed.The conventional regression methods were applied in establishing relationships among the index properties（moisture content,void ratio and unit weight）and compressibility of residual soils.The correlations formulations and their correlation coefficients are also presented in the paper.The results indicate that,using the index properties for the estimation of compressibility have some reliability,but the influence of the structural strength of the completely weathered granitic residual soils should also be considered.
作者
许黎明
XU Liming(Xiamen Rail Transit Group Co. , Ltd. , Xiamen 361000)
出处
《土工基础》
2018年第3期335-337,354,共4页
Soil Engineering and Foundation
关键词
厦门
花岗岩
残积土
工程特性
Xiamen
Granite
Residual Soil
Engineering Properties
