174内蒙古工业大学学报(自然科学版)2023年第42卷第2期2023年4月内蒙古工业大学学报(自然科学版)JournalofInnerMongoliaUniversityofTechnology(NaturalScienceEdition)Vol.42No.2Apr.2023文章编号:1001-5167(2023)02-0174-04交通荷载作用下高温冻土动弹性模量影响因素研究王瑛1,刘俊芳1,2,3(1.内蒙古工业大学土木工程学院,呼和浩特010051;2.内蒙古工业大学地质技术与岩土工程内蒙古自治区工程研究中心,呼和浩特010051;3.内蒙古工业大学沙旱区地质灾害与岩土工程防御自治区高等学校重点实验室,呼和浩特010051)StudyoninfluencefactorsofdynamicelasticmodulusofhightemperaturefrozensoilundertrafficloadWANGYing1,LIUJunfang1,2,3收稿日期:2022-08-24第一作者:王瑛(1998—),男,2021级硕士研究生,主要从事冻土动力学特性研究。E-mail:1991264572@qq.com通信作者:刘俊芳(1975—),女,硕士,副教授,主要从事岩土工程方面的教学与研究。E-mail:5743566727@qq.com(1.SchoolofCivilEngineering,InnerMongoliaUniversityofTechnology,Hohhot010051,China;2.InnerMongoliaEngineeringResearchCenterofGeologicalTechnologyandGeotechnicalEngineering,InnerMongoliaUniversityofTechnology,Hohhot010051,China;3.KeyLaboratoryofGeologicalHazardsandGeotechnicalEngineeringDefenseinSandyandDroughtRegionsatUniversitiesofInnerMongoliaAutonomousRegion,InnerMongoliaUniversityofTechnology,Hohhot010051,China)Abstract:Thedynamicelasticmodulusofhigh-temperaturefrozensoilisoneoftherelevantparametersfordynamicresponseanalysisofsoillayer.Thestudyontheinfluencefactorsofdynamicelasticmodulusofhigh-temperaturefrozensoilcanprovideatheoreticalreferenceforfurtherstudyonthedynamiccharacteristicsofhigh-temperaturepermafrostsite.Theeffectsoffrequency(4,5,6Hz)andamplitudeofdynamticstress(30,40,50kPa)onthedynamicelasticmodulusofhightemperaturefrozensiltyclaywerestudiedbyindoordynamictriaxialtest.Underthesamecumulativedynamicstrain,thegreaterthefrequency,thegreaterthedynamicelasticmodulus,andthedynamicelasticmodulusincreaseswiththeincreaseofcumulativedynamicstrain.Underthesamecumulativedynamicstrain,thelowertheamplitude,thegreaterthedynamicelasticmodulus;whenthedy...