盾構(gòu)隧道下穿施工對(duì)嚴(yán)重傾斜擋墻影響及加固措施分析

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Analysis of the Influence of Shield Tunnel Construction on the Existing Eerious Inclined Retaining Wall and the Reinforcement Measures in Advance

1．，；2．，）

中圖分類(lèi)號(hào)：TU375 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：1005-8249（2025）01-0145-05

DOI：10.19860/j.cnki.issn1005- 8249.2025.01.027

LIU Xiaorui1，ZHANG Han2

(1. Beijing Construction Quality 3rd Text Limited Liability Company， Beijing 1OOO37，China； 2. Beijing Municipal Engineering Research Institute， Beijing 1OoO37， China ）

Abstract：Theconstructionof subway tunnel willhaveanadverseefectonthedeformationof thesuperstructure.And the structuralsafetystateof thesurfacestructure beforeconstructionhasasafetyconsiderationfortheconstructionof the tunel project，andeven determinesthe feasibilityoftheprojectimplementation.Beforesubwayconstruction，itisnecesaryto evaluatethe status of existingroad facilities.At present，ifthereare structural safetyhazards inthestructures before subway construction，sructuralreinforcementanddisposalareoftencarredoutwithoutanalysis，resultinginincreasedcostsanddelays inconstructionperiod，andevenadversesocialimpacts.Taking thesectionofHepingxiqiao Station\~Guangximen Stationof Beijing MetroLine12asan example，thispaper analyzedthecausesof theserious inclinationof theexisting prefabricated retaining wallbasedontheradarandtotal station detectiondata，andanalyzedtheinfluenceof theconstructionof thesubway sectiononthedeformationoftheretaining wallbasedonthecontinuous mediumdynamicsanalysissoftwareFLAC.Itwilavoid the existing measuesofreinforcement whentheinclination exceeds thestandard，andsave investmentandconstructionperiod.

Keywords：tunnelunderpassconstruction；seriouslyinclinedretaining wall；deformationimpactanalysis；reinforcementmeasures

0 引言

隨著我國(guó)的經(jīng)濟(jì)發(fā)展和城市化建設(shè)，地鐵規(guī)模逐漸增大，目前在建或已規(guī)劃的地鐵建設(shè)路線(xiàn)均需穿越城市繁華地區(qū)，這些地區(qū)建（構(gòu)）筑物、城市道路交通設(shè)施等均已建成并穩(wěn)定運(yùn)行、使用。（剩余7543字）