分析軟巖的力學(xué)行為和深隧道的穩(wěn)定控制畢業(yè)論文外文翻譯_第1頁
已閱讀1頁，還剩26頁未讀， 繼續(xù)免費閱讀

下載本文檔

版權(quán)說明：本文檔由用戶提供并上傳，收益歸屬內(nèi)容提供方，若內(nèi)容存在侵權(quán)，請進行舉報或認領(lǐng)

文檔簡介

1、翻譯部分翻譯部分原文AnalysisofmechanicalbehaviofsoftrocksstabilitycontrolindeeptunnelsHuiZhouaChuanqingZhangaZhenLiaDaweiHuaJingHoubAbstractDuetotheweaknessinmechanicalpropertiesofchliteschistthehighinsitustressinJinpingIIhyowerst

2、ationtherockmasssurroundingthediversiontunnelslocatedinchliteschistwasobservedwithextremelylargedefmations.Thismaysignificantlyincreasetheriskoftunnelinstabilityduringexcavation.Indertoassessthestabilityofthediversiontun

3、nelslabatytestswerecarriedoutinassociationwiththepetrophysicalpropertiesmechanicalbehaviswaterweakeningpropertiesofchliteschist.Thecontinuousdefmationofsurroundingrockmassthedestructionofthesupptstructurealargescalecolla

4、pseinducedbytheweakchliteschisthighinsitustresswereanalyzed.Thedistributionsofcompressivedefmationintheexcavationzonewithlargedefmationswerealsostudied.Inthisregardtworeinfcementschemesftheexcavationofdiversiontunnelbott

5、omsectionwereproposedaccdingly.Thisstudycouldoffertheeticalbasisfdeeptunnelconstructioninsimilargeologicalconditions.KeywdsDeeptunnelSoftrockWaterweakeningeffectLargedefmationStability1.IntroductionTheWestendsofdiversion

6、(highpressure)tunnels#1#2ofJinpingIIhyowerstationwerelocatedinthechliteschiststratumwiththelengthofabout400m.Thisstratumisacterizedwithcomplexgeologicalconditionse.g.highinsitustresslargeoverburdendepth.Themainacteristic

7、sofchliteschistarerelatedtotheweaknessinthemechanicalpropertieswaterweakeningeffectssignificantcreepstrainofrocks.Extremelylargedefmationwasobservedduringconstructionduetotheinadequatesupptmeasuressuchasdelayedsupptlowst

8、rengthsupptafterexcavatingthetopsectionoftunnels.Thesignificantinterferenceofprimarysupptwithiginalliningsectioncontributedtothecontinuouslyincreasingdefmationofrocks.Thisconsiderablyincreasestheriskofinstabilityofsurrou

9、ndingrockmasswhenexcavatingthebottomsectionoftunnelsproposed.2.ProjectoverviewJinpingIIhyowerstationislocatedattheYalongRiverSichuanProvinceChina.TheJinpingIIhyowerstationiswellknownasasuperlargehyowerprojectduetotheultr

10、alongdeepburiedlargescaletunnelsection.ThefourparalleldiversiontunnelsofJinpingIIhyowerstationare16.7kminlengththespacingbetweentwoadjacenttunnelsisabout60m.Thetunnels24wereexcavatedbydrillingblastingmethodintwostepswhil

11、etunnels#1#3byTBMs.Fullsectionreinfcedconcretetunnelsupptstructurewiththicknessof50–140cmwasused.Theoverburdendepthalongthetunnelisbasically1500–2000mthemaximumdepthis2525m.TheWestendsofthediversiontunnels#1#2werelocated

12、inchliteschiststratuminthestakesof(1)1537(2)1613atthedepthofabout1500m(seeFig.1).Thechliteschistiscomplexfgeologicalconditionsfrequentchangesinlithologycanbeobserved.Therocksaremainlygreensstonegreensstone–marbleinterbed

13、dingchliteschist–marbleinterbeddingchliteschist.Theaccumulatedlengthsofchliteschist–marbleinterbeddingchliteschistinthediversiontunnels#1#2are264m314mrespectively.Theexistenceofchliteschist–marbleinterbeddingchliteschist

14、stratacausedthemajcollapsedestructionofprimarysupptduetolargedefmationofsurroundingrockmassinlargearea.Meoverlargedefmationofsurroundingrockmassinalargeareawasalsoobservedinthesecondexcavation(enlarged)somelocallargedefm

15、ationonceagaincausedthedestructionofsupptstructure.Fig.1.GeologicalprofilealongdiversiontunnelofJinpingIIhyowerstation.T1:chliteschistT2z:marbleT3:syslateT2b:marbleT2y:marble.3.PhysicalpropertiesofchliteschistCreepdefmat

16、iondestructionofsupptstructurelargescalecollapsewereobservedduringexcavationduetotheweaknessofmechanicalpropertiesofchliteschisthighinsitufieldstress.Theseproblemsshouldbeaddressedindertomaintaintheprogressofprojectconst

溫馨提示

  • 1. 本站所有資源如無特殊說明，都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等，如果需要附件，請聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙，網(wǎng)頁內(nèi)容里面會有圖紙預(yù)覽，若沒有圖紙預(yù)覽就沒有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 眾賞文庫僅提供信息存儲空間，僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護處理，對用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯，并不能對任何下載內(nèi)容負責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當內(nèi)容，請與我們聯(lián)系，我們立即糾正。
  • 7. 本站不保證下載資源的準確性、安全性和完整性, 同時也不承擔(dān)用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。

評論

0/150

提交評論