第45卷第1期2023年1月铁道学报JOURNALOFTHECHINARAILWAYSOCIETYVol.45No.1January2023文章编号:1001-8360(2023)01-0105-09高速铁路车站岔区高填方路基沉降组合预测研究马学宁,陈玉燕,王旭(兰州交通大学土木工程学院,甘肃兰州730070)摘要:为确定高速铁路车站岔区高填方路基工后沉降是否满足铺设无砟轨道要求,结合现场监测沉降数据,采用三种单项模型(V模型、D模型和H模型)对沉降进行预测;利用最优组合原理建立邓英尔-双曲线组合模型(D-H模型)、邓英尔-灰色费尔哈斯组合模型(D-V模型)、双曲线-灰色费尔哈斯组合模型(H-V模型)3种两模型组合模型和1种三模型组合模型(D-H-V模型)。进一步探讨各预测模型的适用性和可靠性,引入5个精度评价指标,对各模型预测效果进行评价,预测效果优劣顺序为:三模型组合模型>两模型组合模型>邓英尔模型>灰色Verhulst模型>双曲线模型。用各断面的最优模型预测工后沉降,各断面工后沉降均满足铺设无砟轨道要求。关键词:高速铁路;高填方路基;沉降预测;单项预测模型;组合预测模型中图分类号:U238文献标志码:Adoi:10.3969/j.issn.1001-8360.2023.01.013StudyonSettlementCombinationPredictionofHighFillSubgradeinTurnoutAreaofHigh-speedRailwayStationMAXuening,CHENYuyan,WANGXu(SchoolofCivilEngineering,LanzhouJiaotongUniversity,Lanzhou730070,China)Abstract:Inordertodeterminewhetherthepostconstructionsettlementofhighfillsubgradeintheturnoutareaofhigh-speedrailwaystationmeetstherequirementsoflayingballastlesstrack,combinedwiththefieldmonitoringsettlementdeformationdata,firstly,threesinglemodels(Vmodel,DmodelandHmodel)wereusedtopredictthesettlement.Then,fournewpredictionmodelswereestablishedbyusingtheoptimalcombinationprinciple,includingthreetypesoftwo-modelcombinationmodels,namely,theDengyinger-hyperboliccombinationmodel(D-Hmodel),theDengyinger-greyVerhulstcombinationmodel(D-Vmodel),andthehyperbolic-greyVerhulstcombinationmodel(H-Vmodel),andonethree-modelcombinationmodel(D-H-Vmodel).Inordertofurtherexploretheapplicabilityandreliabilityofeachpredictionmodel,fiveaccuracyevaluationindexeswereintroducedtoevaluatethepredictioneffectofeachmodel.Thepredictioneffectisintheorderofthree-modelcombinationmod...