92傅英坤钢渣协同橡胶固化滨海港口淤泥的动力学特性研究钢渣协同橡胶固化滨海港口淤泥的动力学特性研究傅英坤（山东港口烟台港集团有限公司，山东烟台264000）摘要：为研究钢渣协同橡胶固化滨海港口淤泥的动力学特性，对土样展开了动三轴强度试验，深入分析了钢渣掺量、橡胶颗粒掺量对滨海港口淤泥动力学特性的影响。研究表明：（1）各试样的滞回曲线形状相似，动应力-应变曲线变化趋势相同，动应力由近似线性迅速增长逐渐转变为近似水平缓慢增长并趋于稳定，说明试样由弹性变形逐渐转变为塑性变形；（2）钢渣掺入后，试样的动弹性模量获得显著提升，从抵抗变形角度来看，钢渣最佳掺量为65%；随着钢渣掺量的增加，试样的阻尼比逐渐降低，抗震性能逐渐减弱；（3）在65%钢渣改良淤泥土中继续掺加橡胶颗粒，会使试样的阻尼比增大，且阻尼比与橡胶颗粒掺量呈现正相关关系，橡胶颗粒掺量15%时阻尼比增加最为明显；但橡胶颗粒的加入会降低试样的动弹性模量，橡胶颗粒掺量10%时动弹性模量最大。关键词：淤泥固化；钢渣；橡胶；动力学中图分类号：TU471.8StudyontheDynamicCharacteristicsofSteelSlagCombinedwithRubbertoSolidifyCoastalPortSiltFUYing-kun(ShandongPortGroupYantaiPortGroupCo.,Ltd.,Yantai264000,Shandong,China)Abstract:Inordertostudythedynamiccharacteristicsofsteelslagcombinedwithrubbertosolidifycoastalportsilt,adynamictriaxialstrengthtestwascarriedout,andtheeffectofthecontentofsteelslagandrubberparticlesonthedynamiccharacteristicswasdeeplyanalyzed.Theresultsshowthat:(1)Theshapeofthehysteresiscurvesofthesampleswithdifferentdosagesaresimilar,andthedynamicstress-straincurveshavethesametrend;Itshowsthatthesampleisgraduallytransformedfromelasticdeformationtoplasticdeformation;(2)Steelslagcansignificantlyimprovethedynamicelasticmodulusofsludge.Fromtheperspectiveofresistancetodeformation,theoptimumcontentofsteelslagis65%;withtheincreaseofsteelslagcontent,thedampingratioofthesamplegraduallydecreases,andtheseismicperformancegraduallyweakens;(3)Thedampingratioofthesamplewillbeincreasedbyaddingrubberparticlesin65%steelslagimprovedsiltsoil,andthedampingratiohasapositivecorrelationwiththeamountofrubberparticles.Thedampingratiowillincreasemostobviouslywhent...
