




已阅读5页,还剩8页未读, 继续免费阅读
版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
*Correspondingauthor.E-mailaddress:tateyamase.ritsumei.ac.jp(K.Tateyama).JournalofTerramechanics43(2006)341353/locate/jterraJournalofTerramechanics0022-4898/$20.00C2112005ISTVS.PublishedbyElsevierLtd.Allrightsreserved.AbstractGeomechatronicsisatechnicalfieldinwhichGeotechniquesisfusedwithMecha-tronicsthatisthetechnicalfieldtopromotetheautomaticcontrolofmachinesbyusingtheelectronics.InthefieldofGeomechatronics,aconstructionmachine,whichtreatsgeo-technicalmaterialssuchassoilandrock,automaticallyevaluatesthepropertiesandcondi-tionsofthegroundanddeterminestheoptimumcontrollingmethodofitselfforthegroundwiththebaseofthemachinegroundinteraction.Someresearchesforpracticaluseinthefieldofgeomechatronicsareintroduced,andthentheprogressingviewofthisresearchandtechnicalfiledisexplainedinthispaper.C2112005ISTVS.PublishedbyElsevierLtd.Allrightsreserved.Keywords:Geomechatronics;Constructionrobotics;Soilmachineinteraction;Groundevaluation;MachinecontrolGeomechatronicsInteractionbetweengroundandconstructionmachineryanditsapplicationtoconstructionroboticsK.Tateyamaa,*,S.Ashidaa,R.Fukagawaa,H.TakahashibaCollegeofScienceandEngineering,RitsumeikanUniversity,1-1-1,Nozi-higashi,Kusatsu,Shiga525-8577,JapanbDepartmentofEnvironmentalStudies,TohokuUniversity,6-6-20,Aoba,Aramaki,Aoba,Sendai980-8579,JapanReceived29September2004;receivedinrevisedform7April2005;accepted16May2005Availableonline27October2005doi:10.1016/j.jterra.2005.05.008andtheconstructionprocessinDJMmethod,respectively.Mixingbladesattachedtoasquaresteelpipearerotatedontheaxisofthepipeandaredrivenintothe342K.Tateyamaetal./JournalofTerramechanics43(2006)341353ground.Afterthebladesreachafirmsoillayer,theyarepulledoutoftheground.Achemicalagentisthensentdownthroughthepipewithhighlycompressedairandisinjectedintothesoftsoilduringeithertherotatingpenetrationintoortherotatingpulloutoftheground.Theinjectedagentismixedwiththesoftsoilandachemicalreactionbetweentheagentandthewaterinthegroundcreatesfirmcol-umnsintheground.Thismethodisoftenusednotonlyinsoilstabilization,butalsointheconstructionofvariousstructuralfoundations.IntheDJMmethod,itisrequiredtodevelopthesysteminwhichthemachinecontrolandtheamountofthechemicalagentareoptimizedaccordingtothegroundconditionsinordertocreateuniformimprovedcolumns,eectively.InthefieldofGeomechatronics,theauthorssuggestthesysteminwhichthegroundconditionsareevaluatedinrealtimeduringtheconstructionandtheresultiseectivelyappliedtothemachinecontrolortheoptimizationoftheconstruction.2.2.GroundevaluationinDJMmethodIntheDJMmethod,thegroundpropertycanbeevaluatedinreal-timefromthe1.IntroductionOperatorsofconstructionmachineswhichtreatgeotechnicalmaterialssuchassoil,gravel,rockandsoonastheirworkingobjects,generallyevaluatethegroundcondi-tionsanddeterminethemostsuitableoperatingmethodforthegroundconditions.Whenconstructionrobotsdothesamejobinconstructionfields,theyshouldhaveafunctiontoevaluatethegroundconditionsandthendeterminethebestmethodforcon-trollingthemselvesaccordingtothegroundconditions.Theevaluationofgroundcon-ditionsandtheapplicationoftheirresultstothecontrolofthemachinesareexpectedtobecomethemostimportantfunctionsthatconstructionrobotspossessinthefuture.TheauthorssuggestthetechnicalfieldGeomechatronics,inwhichGeotech-niquesisfusedwithMechatronicsthatisthetechnicalfieldtopromotetheauto-maticcontrolofmachinesusingelectronics.Inthefieldofgeomechatronics,theconstructionmachinesautomaticallyevaluatethepropertiesandconditionsofthegroundanddeterminetheoptimumcontrollingmethodofthemselvesforthegroundwiththebaseofthemachinegroundinteraction.Someresearchesforpracticaluseinthefieldofgeomechatronicsareintroducedinthispaper.2.GeomechatronicsinDJMmethod2.1.DryjetmixingmethodDryjetmixing(DJM)methodisarepresentativemethodusedtoimprovedeepsoftsoilinconstructionsites.Figs.1and2showthestructuresofthemachinemeasureddataofthemachineloadandthecontrollingparametersofthemachine.K.Tateyamaetal./JournalofTerramechanics43(2006)341353343Theformeristhemixingtorqueandthepenetratingresistancewhichactonthemix-ingblade,andthelatteristhepenetratingandmixingspeedoftheblade.Tocom-pletethegroundevaluatingsystem,therelationofthegroundtothemachineloadFig.1.MachineandconstructioninDJMmethod.Fig.2.ConstructionprocessinDJMmethod.andtheeectofthecontrollingparameterstotherelationmustbeunderstood.Therearetwoapproachescommonlyusedforthissubject.Inthefirstapproach,fuzzyreasoningisappliedtotheevaluationprocessinordertotreatthevariousobscuritiesbothinthegroundandintheinteractionbetweenthemachineandtheground1.Inthesecondapproach,atheoreticaldiscussioniscarriedoutwiththesoilcuttingtheorytostudytherelationshipbetweenthesoilpropertiesandthemix-ingtorque2.Inthispaper,thelattermethodwasexplained,wherethegroundpropertycantheoreticallybeevaluatedfromthemixingtorqueTandthepenetrat-ingspeedv.2.3.Soilcuttingwithablade344K.Tateyamaetal./JournalofTerramechanics43(2006)341353Fig.3givesasketchofthecuttingbladewhichcutsthesoilintheground.Hata3suggestedanempiricalrelationforthehorizontalcomponentofcuttingresistanceHa(N)bythefollowing:Ha1:82C1BC1t2C1RS10C0maBC1bC1tC1dtdxtand;1whereBisthewidthoftheblade(m),tistheheightoftheblade(m),xisthehor-izontalmovingdistanceoftheblade(m),RSisthespecificcuttingresistance(N/m3),aistherakeangleoftheblade(rad),bisthecoecientofthepenetratingresistance(N/m2),disthefrictionanglebetweensoilandblade(rad),mistheconstantdepend-ingonthesoilproperty.Thefirsttermintherightsideexpressesthecuttingresistanceactingonthebladewhenitcutsthesoilhorizontally,andthesecondtermistheresistanceactingonthetipofthebladewhenitpenetratesintotheground.ThespecificcuttingresistanceRSinEq.(1)expressesthest
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 2025年气候变化对极地生态系统的保护措施
- 2025年气候变化对极端天气的影响
- “精准学、精巧练、精妙赛、精细评”赋能啦啦操队形创编
- 数字经济方面题库及答案
- 平遥小学考试试题及答案
- 2025年山西会考模拟试卷及答案
- 转半包合同(标准版)
- 古代盐业知识题库及答案
- 货品借用合同(标准版)
- 绿色债券发行创新创业项目商业计划书
- 销售合同协议书模板集
- 《建设工程造价咨询服务工时标准(房屋建筑工程)》
- 学校食堂汇报工作
- 南通市启秀初中2024-2025八年级上学期第一次月考物理试卷及答案
- 医生签约MCN机构合同模版
- 医院护理培训课件:《护士VTE评估过程中常见问题及应对》
- 卫生院对村卫生室业务指导总结
- 23秋国家开放大学《液压与气压传动》形考任务1-2参考答案
- 煤矿架空乘人装置安装检验报告
- 寻常型天疱疮
- 法人车辆租给公司合同范本
评论
0/150
提交评论