摘要
通过对大量土工试验数据整理分析,运用统计回归分析法研究连云港徐圩地区黏性土的物理指标之间的相关性,总结得出该地区黏性土的孔隙比与含水量、密度、液限、塑限之间的一元线性关系式。通过线性回归得出压缩系数与孔隙比、含水量、密度、液限之间的一元线性关系式,根据相关系数分析影响压缩指标与基本物理量之间关系的紧密程度,发现含水量、密度、液限对压缩性的影响因素逐步降低。依据这些规律及公式可用于实际土工试验中检查试验结果的准确性,快速筛查出异常数据,提高土工试验数据的质量。
Based on the collation and analysis of a large number of geotechnical test data,the correlation between physical indexes of cohesive soil in Xuwei New District of Lianyungang City is studied by statistical regression analysis.The unitary linear relationship between void ratio and water content,density,liquid limit and plastic limit of cohesive soil in this area is summarized.The unitary linear relationship between compression coefficient and void ratio,water content,density and liquid limit is obtained by linear regression,and the tight degree of the relationship between compression index and basic physical quantity is analyzed according to the correlation coefficient.It is found that the influence factors of water content,density and liquid limit on compressibility decrease gradually.According to these laws and formulas,it can be used to check the accuracy of the test results in the actual geotechnical test,quickly screen the abnormal data and improve the quality of the geotechnical test data.
出处
《科技创新与应用》
2023年第12期71-74,共4页
Technology Innovation and Application
关键词
黏性土
土工试验数据
物理指标
压缩指标
一元线性关系式
影响因素
cohesive soil
geotechnical test data
physical index
compression index
unitary linear relationship
influencing factors
