第37卷第1期粉煤灰综合利用Vol．37No．12023年2月FLYASHCOMPＲEHENSIVEUTILIZATIONFeb.2023道桥技术基于改进遗传算法的公路沥青混凝土路面黏弹性损伤演化模拟ViscoelasticDamageEvolutionSimulationofHighwayAsphaltConcretePavementbasedonImprovedGeneticAlgorithm陈晋华(福建船政交通职业学院，福建福州350007)摘要:沥青混凝土路面在低温状态下会有明显的开裂现象，一旦公路路面上出现裂缝，路面就会逐渐损坏，影响道路的平稳性与舒适性。为降低公路维护成本，基于改进遗传算法对公路沥青混凝土路面黏弹性损伤进行演化模拟。建立沥青混凝土路面结构模型，依据弹性柔量与摩擦系数的关系得到路面各层级之间的空间特征;基于改进遗传算法计算路面黏弹性损伤荷载，划定初始损伤与断裂区域的应力总值，计算路面黏弹性损伤荷载;设定路面损伤在环境温度以及各层级间相对位移量的边界条件，得到路面损伤模拟分析的方法。由试验数据可知:温度越低，路面的应力作用越大，且裂缝的长度与路面正应力成正比。关键词:改进遗传算法;公路路面;沥青混凝土路面;路面黏弹性;路面损伤;演化模拟中图分类号:U416.217文献标志码:A文章编号:1005－8249(2023)01－0126－06DOI:10．19860/j．cnki．issn1005－8249．2023．01．022CHENJinhua(FujianChuanzhengCommunicationsCollege，Fuzhou350007，China)Abstract:Asphaltconcretepavementwillhaveobviouscrackingunderlowtemperature.Oncecracksappearonthehighwaypavement，thepavementwillbegraduallydamaged，affectingthestabilityandcomfortoftheroad.Inordertoreducethecostofhighwaymaintenance，theviscoelasticdamageofhighwayasphaltconcretepavementissimulatedbasedonimprovedgeneticalgorithm.Thestructuralmodelofasphaltconcretepavementisestablished，andthespatialcharacteristicsofeachlevelofpavementareobtainedaccordingtotherelationshipbetweenelasticcomplianceandfrictioncoefficient;basedontheimprovedgeneticalgorithm，theviscoelasticdamageloadofpavementiscalculated，thetotalstressofinitialdamageandfractureareaisdelimited，andtheviscoelasticdamageloadofpavementiscalculated;Theboundaryconditionsofpavementdamageatambienttemperatureandrelativedisplacementbetweenlevelsareset，andthemethodofpavementdamagesimulationanalysisisobtained.Accordingtotheexperimentaldata...
