湿干冻融循环下渠道边坡水热演化与变形特性

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关键词：湿干冻融；渠道；边坡；数值模拟；水-热耦合中图分类号：TU43；TU196+.1 文献标志码：A doi：10.3969/j.issn.1000-1379.2026.02.022用格式：，，，等.湿干冻融循环下渠道边坡水热演化与变形特性[J].人民黄河，2026，48（2）：142-147，154.

Hydrothermal Evolution and Deformation Characteristics of Canal Slopes Subjected to Wet-Dry and Freeze-Thaw Cycles

ZHU Rui 1，2 ， ZHANG Lingkai³，GUO Wanli1， ZHANG Xiaoying³，WANG Mengling²， DAI Zhiyu4 （1.KeyLboratoryofeservoirandDamSfetyofinistryofWaterResoucs，NanjingHyraulicResearchIstitute，Nng09， China;2.Collge of Transportation Science and Engineering，Nanjing Tech University，Nanjing 211816， China; 3.College of Hydraulic and Civil Engineering， Xinjiang Agricultural University， Urumqi 830091， China; 4.Yellow River Institute of Hydraulic Research，YRCC，Zhengzhou 45OoO3，China）

Abstract：Forteanalsinssoalfrozareas，teombinedctionofedryndfrwisanmpoantcausefortegadalista bilityofthecanalsBasedonhydro-therocouplingtheory，theumericalodelofcanalsinNrteXinjiangwasestablised.Thetemper aturefield，moisturefieldanddeforationfieldofcanalmodelunderwet-dryandfreezethacylesereanalyedandtheefetofruing years （ofwet-dryandfreee-thaccles）oncanalcatastrophicprocesswasdiscussed.Tersultndicatetatduringteuingpriod， themoisturefieldandtemperaturefieldtendtobestableaftertreetofiveyears（threetofivewetdryandfrezeawcycles）.Howeverthe displacementisstllgowingowlyftertetofeyears，spiallinelowerartofeso，icheistsisfraciluef modelanal.Inadition，tefreze-taweformationiducedbytemperaturechangesisanmporantfactorinanalopeistablity，ad theicreaseifoundationsoilsaturationisteaincuseofthisphenomenon.Inpracticalenginering，atentionshouldbepidtosolving the anti-seepage and drainage problems at the bottom and below the water surface line of canal slope.

Key words： wet-dry and freeze-thaw；canal； slope； numerical simulation; hydro-thermo coupling

0 引言

引调水工程是优化我国水资源配置的重大战略举措[1]，输水渠道作为引调水工程的主要构筑物，在季节性冻土地区（季冻区）复杂环境下往往会出现劣化致灾现象。（剩余8982字）