黃土地區(qū)高速公路路基沉陷問(wèn)題及治理施工技術(shù)

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中圖分類(lèi)號(hào)：U418.5 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：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

黃土地區(qū)高速公路建設(shè)遭遇了特有的地質(zhì)難題，其中路基沉降問(wèn)題尤為顯著。（剩余6621字）