大埋深隧道仰拱隆起控制措施效果分析

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中图分类号：U457 文献标志码：A 文章编号：2095-2945（2025）26-0147-04

Abstract：Theoccurrenceofinvertedarchupliftdisasternotonlyafectstheconstructionsafetyoftunnelsunder construction，butalsocausessafetyhazardstotunnelsduringtheoperationperiod.Theocurrenceoflargeinvertedarch defomationwillhaveaseriousimpactontheentiretunnelstructure.Therefore，theefectivenessevaluationandcauseanalysisof invertedarchuplitcontrolmeasuresareofgreatsignificancetoensuringthesafetyoftunnelconstructionandoperation.Taking ahighwaytunnelinYunnanasanexample，thispaperanalyzesthecontrolefectof diferentdisastertreatmentmeasureson invertedarchdeformationbasedongeologicalconditionsandmonitoringdata.Theresearchresultsshowthatthemainfactorsfor theupliftoftheinvertedarcharewater-swellblesuroundingrocks，fracturedstructuresandabundantgroundwater;the deformationoftheinvertedarchisstableduringthemicro-pilepipejackingtreatment，butthedeformationgrowthofthe invertedarchisnotcontrolled.Groutingtreatmentmeasureswillcausethedeformationoftheinvertedarchtosuddenlyincrease duringgrouting，butthedeformationoftheinvertedarchisefectivelycontroledaftergrouting，whichshowsthatcomparedwith themicro-pilepipejacking treatmentmethod，groutingreinforcementhasabeterefectincontrolingthedeformationofthe inverted arch.

Keywords： inverted arch bulge;control effect;water swellability；micro-pile jacking; tunnel

随着隧道施工地质条件越来越复杂，施工中时常会出现仰拱隆起、结构大变形及突泥涌水等不良地质灾害，其中突泥涌水主要发生在掌子面，结构大变形通常发生在隧道拱顶及边墙位置，而仰拱隆起是发生在隧道底部的不良地质灾害。（剩余3320字）