Page 72 - 2023年第54卷第1期
P. 72

与技术,2019,51(5):60 - 67.
                [31] MAZ,SHICZ,WUH G.Numericalcrackinganalysisofsteel - linedreinforcedconcretepenstockbasedonco
                       hesivecrackmodel [J].Structures,2021,34:4694 - 4703.
                [32] LUBLINERJ,OLIVERJ,OLLER S,etal.A plastic - damagemodelforconcrete[J].InternationalJournalof
                       Solids& Structures ,1989,25(3):299 - 326.
                [33] 沈新普,王琛元,周琳.一个钢筋混凝土损伤塑性本构模型及工程应用[J].工程力学,2007(9):122 - 128.
                [34] 温立峰,李炎隆,柴 军 瑞.混 凝 土 面 板 堆 石 坝 地 基 防 渗 墙 塑 性 损 伤 数 值 分 析 [J].水 利 学 报,2021,52
                       (6):673 - 688.
                [35] 中华人民共和国住房和城乡建设部.混凝土结构设计规范:GB50010—2010[S].北京:中国建筑工业出
                       版社,2011.
                [36] 蔡晓鸿.圆形压力隧洞岩石抗力系数 K的理论和计算[J].工程力学,1988(3):100 - 108.
                [37] 苏庆田,杜霄,李晨翔,等.钢与混 凝 土 界 面 的 基 本 物 理 参 数 测 试 [J].同 济 大 学 学 报 (自 然 科 学 版),
                      2016,44(4):499 - 506.
                [38] 郭瑞,何川,苏宗贤,等.盾构隧道管片接头抗剪力学性能研究[J].现代隧道技术,2011,48(4):72 - 77.
                [39] STANDARDAA.BuildingCodeRequirementsforStructuralConcrete(ACI318 - 11)[C]??AmericanConcreteIn
                       stitute.2011.
                [40] 水利部水利水电规划设计总院.水利水电工程压力钢管设计规范:SL?T281—2020[S].北京:中国水利水
                       电出版社,2021.
                [41] 段乐斋.水工隧洞和调压室(水工隧洞部分)[M].北京:水利电力出版社,1990.
                [42] 李嘉进.混凝土容许应力研究[J].水电站设计,1992(2):74 - 80.
                [43] 水电水利规划设计总院.水电站地下埋藏式月牙肋钢岔管设计规范:NB?T35110—2018[S].北京:中国
                       水利水电出版社,2018.



                         Bearingmechanism andperformanceoptimizationofDetachedSteel - Tube
                                    Linerforwaterconveyancetunnelacrossurbanarea

                                                               1
                                    1,2,3
                                                 1
                                                                             1
                              SUKai ,TAOJun,XUZhendong,WANGBoshi,ZHUHongze                 1
                    (1.StateKeyLaboratoryofWaterResourceandHydropowerEngineeringScience,WuhanUniversity,Wuhan 430072,China;
                              2.KeyLaboratoryofRockMechanicsinHydraulicStructuralEngineering,MinistryofEducation,
                                              WuhanUniversity,Wuhan 430072,China;
                     3.HubeiKeyLaboratoryofWaterSystemScienceforSpongeCityConstruction,WuhanUniversity,Wuhan 430072,China)
                  Abstract:Inrecentyears,anewtypeofDetachedSteel - tubeLinerhasbeenadoptedintheconstructionofdiversion
                  tunnelacrossurbanareainChina ,butitsdesignconceptandbearingmechanismisnotclear.Athree - dimensionalfi
                  niteelementmodelfortheTBMwaterconveyancetunnelacrossurbanareaisdevelopedafterawaterresourcesallocation
                  project.Thedeformationcharacteristic,stressdistributionandbearingratioofDetachedSteel - tubeLinerareanalyzed.
                  Theresultsshowthattheradialdeformationofsteellinerandself - compactedconcreteiscoordinatedunderthedesign
                  internalpressure.Theradialdeformationofsteellinerandself - compactedconcreteisobviouslylargerthanthatofthe
                  segmentswithinthelayingrangeofplasticdrainageplatewhiletheradialdeformationofsteelliner ,self - compacted
                  concreteandsegmentsremainscoordinatedoutsidethelayingrangeofplasticdrainageplate.Thestresslevelofsteellin
                  erislowandthedistributionisveryunevenwhilethestressofsegmentsexceedsthelimitofcrackcontrol.Theinternal
                  waterpressureismainlybornebysurroundingrock,andthebearingratioofsteellinerisobviouslylowerthanexpected;
                  boththereductionofthefrictioncoefficientbetweensteellinerandself - compactedconcrete,self - compactedconcrete
                  andsegmentscanimprovetheuniformityofstressdistributionofsteelliner ,whichcangivefullplaytotheperformance
                  ofsteelliner,anditisalsoofgreatsignificancetothecrackcontrolofsegments;thebearingratioofsteellinerin
                  creaseswhend?E(theratioofthicknessofplasticdrainageplatetoitscomprehensiveelasticmodulus)islarger.To
                  meetthedesignconceptthattheinternalpressureismainlysharedbysteelliner ,d?Eshouldbecontrolledat12.4 -
                        3
                  45.1mm ?Nwiththeallowablestressofsteellinerandcrackcontroldesignofsegmentsconsidered.
                  Keywords:waterconveyancetunnelacrossurbanarea; detachedsteel - tubeliner; drainageplate; bearing
                  mechanism ;bearingratio

                                                                                    (责任编辑:韩 昆)

                                                                                                 —  6 7 —
   67   68   69   70   71   72   73   74   75   76   77