预览加载中，请您耐心等待几秒...

复杂地质条件下62m超深TRD止水帷幕关键施工技术.docx

预览
1/2
2/2

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

复杂地质条件下62m超深TRD止水帷幕关键施工技术 Title:KeyConstructionTechniquesof62mSuper-DeepTRDCut-offCurtainunderComplexGeologicalConditions Abstract: Theconstructionofcut-offcurtainsplaysacrucialroleinpreventingwaterseepageandensuringthestabilityofundergroundstructuresingeotechnicalengineering.Thispaperfocusesonthekeyconstructiontechniquesfora62msuper-deepTRD(TrenchlessRemediationandDrainage)cut-offcurtainundercomplexgeologicalconditions.Byanalyzingthechallengesfacedinsuchconditions,thispaperpresentsacomprehensiveoverviewoftheconstructionmethods,equipment,materials,andqualitycontrolmeasuresrequiredtosuccessfullyconstructadeepTRDcut-offcurtain. 1.Introduction: Thesignificanceofcut-offcurtainsincontrollingwaterseepageandprotectingundergroundstructuresiswidelyacknowledged.However,constructingacut-offcurtainatgreatdepthsandincomplexgeologicalconditionspresentsuniquechallenges.ThispaperaimstoprovideinsightsintothekeyconstructiontechniquesrequiredtosuccessfullyimplementadeepTRDcut-offcurtainundersuchconditions. 2.Challenges: -Highgroundwaterpressure:Indeepgeologicalformations,groundwaterpressurecanbesignificant,posingchallengestotheconstructionprocess. -Complexgeologicalconditions:Thepresenceofdifferentlayersofsoil,rock,andothermaterialsinthesubsurfacecancomplicatetheconstructionprocess. -Highoverburdenpressure:Thehighverticalstressfromtheoverlyinglayerscanaffectthestabilityofthecut-offcurtain. -Limitedworkingspace:Workingatgreatdepthsoftenmeanslimitedspaceformachineryandequipment. -Safetyconcerns:Thesafetyofworkersandtheintegrityofthesurroundingstructuresshouldalwaysbeaprimaryconcern. 3.ConstructionTechniques: 3.1.TrenchlessRemediationandDrainage(TRD)method: TheTRDmethodiswidelyusedinconstructingcut-offcurtains.Itinvolvesdrillingaseriesofcloselyspacedboreholesalongthealignmentofthecurtain.Theseboreholesarethenfilledwithagroutmixtoformanimpermeablebarrier.TheTRDmethodoffersadvantagessuchasreducedsurfacedisruption,increasedconstructionspeed,andminimizedimpactonadjacentstructures. 3.2.Boreho