公路路基加固加寬施工技術(shù)研究

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中圖分類號(hào)：U416.1 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：2095-2945(2025)14-0178-04

Abstract:Softsoilfoundation treatmenttechnologyplaysacrucialroleinensuringthestabilityoftheroadbedinhighway reconstructionandexpansionprojects.Thisarticle takesthewideningprojectofsoftsoilsubgradeasthebackground，and conductsasystematicstudyontwo foundation treatmentschemes: CFGpileandhigh-pressrerotary jet groutingpile.Combined withengineringpractice,itcomparesandanalyzestheirtechnicalcharacteristicsandapplicationefects.Throughengiering caseverfication,itwasfoundthatthedesignofCFGpilesneedstofocusoncordinatingtheselectionandthicknesscontrolof bufferlayermaterials,matchingofpilestrengthoptimizationofpilespacing,selectionofpilediameter,anddetermnationofpile length，amongotherkeyparameters，toensurethatthecombinationofvariousparametersmetsthegeologicalconditionsand constructionqualityrequirementsonsite.Duringtheconstructionprocess,itisimportanttofocusoncontrolingthequalityofthe lowerpartofthepilebody，scientificalldevelopingaconstructionscheduletoavoiddamagetothecontinuityofthepilebody， andestablishingapreventionmechanismandemergencyresponse planforpilebreakage isses.Theresearchresultsindicatethat thereasonableaplicationofflexiblereinforcementcushiontechnologyinCFGpilecompositefoundationcansignificantlymprove theoverallbearingperformanceofthefoundation，efectivelyregulatetheloaddistribution，andsupressdferentialsetlement. Comparedwithhigh-presurerotaryjetgroutingtechology，CFGpileshaveobviousadvantagesinsoftsoilreinforcementffect andeconomy.Thequalityofpileformationandconstructioneficiencyhaveahigherdependenceonmechanicalselection, processparameters，andprocesscontrol.Thisresearchachievementprovidesimportanttechnicalreference forthecomparisoand construction quality control of soft foundation treatment schemes in similar projects.

Keywords: highwaysubgrade;reinforcement treatment; widening treatment; constructionscheme；soft soil subgrade

隨著中國(guó)經(jīng)濟(jì)的快速增長(zhǎng)，基礎(chǔ)設(shè)施建設(shè)迎來(lái)重大發(fā)展契機(jī)，其中高速公路改擴(kuò)建工程已成為提升交通網(wǎng)絡(luò)效能的重要舉措。（剩余6341字）