東北五常地區(qū)淤泥質(zhì)軟土指標(biāo)相關(guān)性分析

關(guān)指標(biāo)的統(tǒng)計(jì)分析和多元回歸分析，找出了其中的相互關(guān)系和影響因素，為該地區(qū)軟土工程設(shè)計(jì)提供了科學(xué)依據(jù)。F檢驗(yàn)和R方檢驗(yàn)驗(yàn)證了模型的可靠性。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個(gè)樣本數(shù)據(jù)，并對(duì)其進(jìn)行了描述性統(tǒng)計(jì)分析。結(jié)果表明，樣本數(shù)據(jù)呈正態(tài)分布，且各個(gè)指標(biāo)的平均值、標(biāo)準(zhǔn)差、最大值、最小值等基本指標(biāo)如表1所示。1|指標(biāo)|平均值|標(biāo)準(zhǔn)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軟土指標(biāo)=1.1340.625×密度0.344×含水率0.109率FR0.000，可靠性