高寒林区多年冻土路基温度场监测与分析

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关键词：多年冻土；路基施工；温度监测；高寒林区；时空演化规律中图分类号： 文献标志码：A 文章编号：2095-2945（2025）29-0093-04

Abstract：Thepermafrostinhighcoldforestareasismainlydistributedinanislandshape，withathincoverlayer，shalow naturalupperlimit，highvolumeicecontent，andisextremelysensitivetotemperaturechanges.Constructingthesubradehere caneasilycausedisturbancetotheunderlyingpermafrost，exacerbatepermafrostdegradation，leadtofreeze-thawdeformationof thesubgrade，andcauseaseriesofdiseasessuchassubgradesubsidence，unevensetlement，roadsurfaceundulations，and cracking.Basedontheengineringbackgroundof thepermafrostroadbedfromAliRivertoKubuchunForestFarmofNational Highway332intheGreaterXinganMountainForestRegion，thispaperstudiesthespatio-temporalevolutionofthetemperature feldofthepermafrostroadbedintheforestregionthroughon-sitemonitoringand’analysisofthetemperaturefieldofthe permafrostroadbedintheforestregion.Itishelpfultomaintainthesafetyandstabilityoftheconstructionandoperationofthe permafrost roadbed in alpine forest regions.

eywords： permafrost; subgrade construction;temperature monitoring;alpine forest area; spatio-temporal evolutionl

冻土通常是指处于 0% 或 0% 以下且含有冰的岩土体，它是由岩土体颗粒、冰晶体和未冻水组成的一种复杂的非均匀多相颗粒材料。（剩余4764字）