邻近高层建筑的地铁车站深基坑施工影响分析

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1、万方数据西南交通大学硕士研究生学位论文第1I页AbstractBecauseofthecomplicatedgeographycondition，thecitysubwaydeepfoundationpitisusuallysurroundedwithdensebuildings．Sothefoundationpitexcavationandsupportingisverydifficult，becausethattheynotonlyaffectthesecurityandstabilityoffoundationpi

2、t，willalsoaffectadjacentbuildings．ThispapertakesthedeepfoundationpitofHongfuroadstation，whichisthetransferstationoflineR1andR2ofDongguancityrailtransit，asanbackground．Combiningwiththeconstructionsite‘Sengineeringgeologicalandhydrogeologicalconditions，astudyconcer

3、ningtheimpactoffoundationpit’Sexcavationuponretainingstructureandsurroundingsoils，andbuildingsWasmade．TheresearchcontentisasfollowsI．Thispaperhassetupa3-DmodeloftheretainingstructureandfoundmionpitandconstructionwhichisanNyzedbyusingthefinitedifferencesoftwareFLA

4、C3D．Thenumericalsimulationiscarriedtoanalyzethedeformationoffoundationpitandthestressanddeformationofretainingstructureandthedisplacementofbuildingduringexcavation．Theresultofnumericalsimulationdemonstratesthevalidityofthecalculationmodel．2．Combiningthetheoryofde

5、formationcausedbyfoundationpit’Sexcavation，thispaperhasanalysedthereasonofretainingstructure’SdeformationandSurroundinggroundsettlementandbuilding’Ssettlement，inclineandhorizontaldisplacementcausedbydeepfoundationpit’Sexcavationwhereadjacenttobuildings，andsummari

6、zedtheeffectlawsoffoundationpit’Sexcavation．3．Thispaperhasalsorevealedmorelawswhichhavepracticalsignificancefordesignandconstructionoffoundationpitengineeringthatadjacenttohigh-risebuildingbycarryingafurthernumericalsimulationunderdifferentconditions，include(a)th

7、edifferentdistancebetweendeepfoundationpitandtheadjacentstructures；(b)differentparametersofsupports；(c)differentexcavationmethodsareused．Theobtainedconclusioncanprovidesomereferencefordesignandconstructionofsimilardeepfoundationpitengineeringinthefuture．Keywords：

8、deepfoundationpit；adjacentstructure；numericalsimulation；deformationcontrol万方数据西南交通大学硕士研究生学位论文第1II页目录第1章绪论．．．．．．．⋯⋯．⋯⋯⋯．．．．．．．．．⋯⋯⋯．．．．．．．．．．．．．．．11．1论文研究背景及意义⋯