黄土地区高速公路路基沉陷问题及治理施工技术

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中图分类号：U418.5 文献标志码：A 文章编号：2095-2945(2025)18-0185-04

Abstract:Themainpurposeof thisresearchistodeeplyanalyzethesetlementproblemsof expressaysubgradeinloes areasandtheircontrol strategies，especiallytheaplicationofdynamiccompactioninsuchproblems.Theresearchcontentcovers adetailedanalysisofthegeologicalstructure,hydrogeologicalconditions，anddesignandonstructionfactorsinthelosaea aimingtorevealthecausal mechanismof subgradesetlement.Atthesametime,thestudyelaboratedontheconstruction technologyandkeyoperatingpointsofthedynamiccompactionmethod,includingthepreparationworkbeforeconstruction, requiredequipment，materialselectionandconstructionprocessThroughsetlementobservation，foundationbearingcapacity testing,andstabiltyevaluation,thisstudycomprehensivelyevaluatedandcomparedthetreatmentefectsofdynamiccompaction. Researchresultsshowthatdynamic compaction cansignificantlyimprove subgrade setlement，enhancefoundationbearing capacityandoptimizeoverallstabiltyThisstudyprovidesvaluablepracticalguidanceforthetreatmentofhighwaysubgrade settlement under other similar geological conditions.

Keywords: sugrade subsidence; dynamic compaction method; foundation bearing capacity; loess area; expressway

黄土地区高速公路建设遭遇了特有的地质难题，其中路基沉降问题尤为显著。（剩余6621字）