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ID:36439080
大小:3.96 MB
页数:142页
时间:2019-05-10
《土钉支护技术的工作机理和工程应用研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、同济大学硕士学位论文土钉支护技术的工作机理和工程应用研究姓名:黄希来申请学位级别:硕士专业:建筑与土木工程指导教师:丁文其;李镇华20080301摘要ABSTRACTTheexcavationengineeringisanantiquatedandmodemgeotechnicalengineeringproblem,Withthecontinuousdevelopmentoftheindustryandurbanconstruction,thescarcityofthecityground,theexploitationofth
2、eundergroundspacereceivesrecognition.Withtheincreasingofthedeepexcavationproject,peopledomuchstudyofthebracingmethods.Thereintothesoilnailingisadoredasthespecialexcellenceforexampletheconvenience,theexpeditiousnessandthecheapnessetc.However,theactualworkingmechanismof
3、thesoilnailingisstillunknown,andthetheoryaboutsoilnailingdoesnotmatchitsapplicationintheengineering.Atthebaseofanalyzingandsummarizingtheresearchresultsofthelast,theauthorobtainssomeresearchresults.IhopethatitCallprovidethebeneficialleadingtotheresearchandapplicationo
4、fsoilnailingstructure.Abovea11。thethesisanalysestheconceptionofsoilnailing,anddefineit.Thethesisintroducesthegeneralsituationaboutthesoilnailingdevelopmentonthedifferentcountry;theinvestigationactuality;theadvantageandthedisadvantage.Theworkingmechanismandcapabilityof
5、soilnailingretainingsystemisalsoinvestigatedsystematically.Atthebaseoftheresearchresnltsofthe1ast,differentmechanicsmodelsareutilizedtoanalyzethetheorymechanismofthesoilnailingpulling-resistancetest;researchinternalforceanddisplacementofsoilnailsundernormalconditionof
6、work;andtransverseanti—shearingeffectofsoilnailing.Itsummarizesthefrictionreinforcementprincipleofearth,soilarchingeffectandapparentcohesiontheory,TheauthortriestOanalyzethestablenessofthesoilnailingintheprocessofthefoundationpitexcavgion.Totheinteriorstablenessanalys
7、es,accordingtotheenergymethodandtakingintoaccountthetransverseanti—shearingeffectofsoilnailing,theformulaofsafetyfactorinlimitequilibriumbasedonthelog—spiralfailuremodeisconstructed.Inordertofoundtheoptimalmodetomakethevalueoftargetfunctionminimum,theauthorusessafetyf
8、actorastargetfunctionandsearchedforthedangerousslip—face,andconcludedthesensitivityofallparameterstothestablefactorItsumnlar
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