福州地区结构性软土的压缩试验及参数研究  

Compression Test and Parameter Study of Structural Soft Soil in Fuzhou Area

作　　者：张俊腾 Zhang Junteng(Horticultural and Landscape Architecture College,Fujian College Vocational of Agriculture,Fuzhou 350119,P.R.China)

机构地区：[1]福建农业职业技术学院园艺园林学院,福州350119

出　　处：《地下空间与工程学报》2025年第1期189-197,共9页Chinese Journal of Underground Space and Engineering

基　　金：福建省教科委基金(JAT220608);福建省中青年教师教育科研项目基金(JZ201178,JZ180537)。

摘　　要：以实际在建工程项目为依托,对福州四县区的结构性软土进行压缩试验,从工程实践角度出发,修正了Burland提出的归一化压缩曲线模型,同时提出了双对数模型,作为综合评价福州地区软土结构性的实用模型。结果表明:福州地区土具有较强的结构性,工程实践上不能简单套用其他地区的经验公式;修正的归一化压缩曲线模型能够直观反映福州地区土的压缩性状,在工程实践上应用非常方便;双对数法能够方便确定结构性软土的屈服应力,结合屈服阶段和过渡区阶段直线的斜率可以为工程实践中地基承载力的验算和变形计算提供参考。Based on actual construction projects,compression tests were conducted on structural soft soil in four counties and districts of Fuzhou.From the perspective of engineering practice,the normalized compression curve model proposed by Burland was revised,and a double logarithmic model was also proposed as a practical model for comprehensive evaluation of the structural properties of soft soil in Fuzhou.The research results indicate that the soil in Fuzhou region has strong structural properties,and in engineering practice,empirical formulas from other regions cannot be simply applied.This paper proposes a modified normalized compression curve model that can intuitively reflect the compression behavior of soil in Fuzhou area,which is very convenient to apply in engineering practice.The double logarithmic method proposed in this article can conveniently determine the yield stress of structural soft soil,and combining the slope of the straight line in the yield stage and transition zone stage can provide reference for checking the bearing capacity and deformation calculation of foundation in engineering practice.

关 键 词：结构性软土 屈服应力 归一化压缩曲线 双对数模型 

分 类 号：TU430[建筑科学—岩土工程]