摘要
在分析某地饱和黏性土基本工程性质的基础上,对黏性土静力触探测试参数和物理力学性质参数进行相关性研究,并建立推算饱和黏性土物理力学性质参数的经验回归公式。结果表明:黏性土双桥静力触探与其他原位试验结果具有较显著的关联性;锥尖阻力和十字板剪切强度、标准贯入击数之间具有较显著的正相关关系,与土体孔隙比、含水量和压缩系数等物理量之间则具有一定的负相关关系。本文结果可为类似软土地区岩土工程勘察设计中饱和黏性土的参数取值和可靠性分析提供有益参考。
On the basis of analyzing the characteristic of saturated cohesive soil,the relationship of cone penetration test(CPT)parameters and physical and mechanical properties were studied.The empirical regression formula to calculate the physical and mechanical properties of saturated clay was established.The results show that there is a significant linear positive correlation between the cone tip resistance and the vane shear strength,standard penetration number and compression modulus of clay,and a negative correlation between the cone tip resistance and the void ratio,water content and compression factor.This will provide references for the reliability analysis of saturated clay parameters in geotechnical investigation,design and construction in this area.
作者
李水江
齐添
刘洪波
杨军
LI Shui-jiang;QI Tian;LIU Hong-bo;YANG Jun(Guangzhou Environmental Protection Investment Group Co.,Ltd.,Guangzhou 510000;Guangzhou Municipal Engineering Testing Co.,Ltd.,Guangzhou 510520)
出处
《广州建筑》
2020年第3期1-5,共5页
GUANGZHOU ARCHITECTURE
关键词
饱和黏性土
静力触探
相关性分析
经验回归公式
saturated cohesive soil
cone penetration test
correlation analysis
empirical regression formula
