东北五常地区淤泥质软土指标相关性分析

关指标的统计分析和多元回归分析，找出了其中的相互关系和影响因素，为该地区软土工程设计提供了科学依据。F检验和R方检验验证了模型的可靠性。TakingthecorrelationanalysisofthesiltsoftsoilinWuchangareaofNortheastChinaasthebreakthroughpoint,throughthestatisticalanalysisandmulti-variableregressionanalysisoftherelevantindicators,wehavefoundoutthecorrelationsandinfluencingfactorsamongthem,providingascientificbasisforthesoftsoilengineeringdesigninthisFirstly,weconductedadescriptivestatisticalanalysisofthesampledataandfoundthatthesamplewasnormallydistributedandexistedcorrelations.Thenwecarriedoutcorrelationanalysisandfoundthattherewasastrongcorrelationamongdifferentindicators,especiallybetweenthewatercontent,densityandsandcontent.Finally,amultipleregressionanalysiswasconducted,inwhichdensity,watercontentandsandcontentwereselectedtoestablishtheregressionmodel.ThereliabilityofthemodelwasverifiedthroughF-testandR-squaretest.ThisstudyprovidesimportantreferenceforthesoftsoilengineeringdesigninWuchangareaofNortheastChina,andalsoprovidesreferencesforsimilarstudies.Keywords:softsoil,correlationanalysis,multipleregression,engineeringdesign,Wuchangarea,NortheastChina50个样本数据，并对其进行了描述性统计分析。结果表明，样本数据呈正态分布，且各个指标的平均值、标准差、最大值、最小值等基本指标如表1所示。1|指标|平均值|标准差|最大值|最小值 |密度|1.40|0.12|1.64|1.18|含水率|42.30|5.16|50.00|32.00|含沙率|18.60|2.81|23.00|14.0022||密度|含水率|含沙率 |密度|1.00|-0.67|0.72|含水率|0.67|1.00|0.75|含沙率|0.72|-0.75|1.00软土指标=1.1340.625×密度0.344×含水率0.109率FR0.000，可靠性