反拱形水墊塘襯砌結(jié)構(gòu)的穩(wěn)定性研究.pdf

1、2005年12月AbstractTheplungepoolwithinvertedarchtypeisanewstyleofplungepool，thesafetyofwhichunderhi曲speedflowisthekeytealizeenergydissipationInrecentyears，abatch0fhi出damsof300mlevelisunderconstructioninChinaandtheproblemofe

2、nergydissipationiscriticalandprominentTheexistingstudyresultsshowthattheplungepoolwithinvertedarchtypeisthemostcompetentcontainerofenergydissipationfor“confinedvalleygreatwaterfluxandhigharchd鋤”Thestabilityofliningstruct

3、ureintheplungepoolwithinvertedarchtypeisoneproblemthatneedst0besolvedinpracticeBasedontheplungepoolwithinvertedarchtypeforLaxiwaarchdamthispaperstudiestheintegralstability，thelocalstabilityofinvertedarchslabsandthedynami

4、cresponseintheperiodofflooddischargethroughnumericalanalysismethodThemainharvestsofthisdissertationinclude鵲follows：(1)Theintegralstabilityofplungepoolwithinvertedarchtypeisjustthestabilityofthewholearchringandmainlydueto

5、archsupportOtherwise，thestabilityofarchsupportiscontrolledbyarchabutmentthrustThispaperanalyzestheinfluencingfactorofarchabutmentthrustlikeupliftpressure，anchoring，thethicknessofslabsandSOon’(2)Theintegralstabilityofplun

6、gepoolwithinvertedarchtypeisalsoassociatedwiththeextentofthearchabutmentgapThestopcocksofslabsworkcompletelywellinmostcircumstancesslabsCan’tmake‘a(chǎn)rch”effectwjtllthedynamicwaterpressureofthetopsurfacesInthiscondition，the

7、archabutmentandthearchsupportmayproducegapWhenthestopcocksofslabsdon’tworkwell，theupliftpressurewillactonthebottomsurfaceofslabs，heretheslabsCall’tmakethewholeringbecauseofoverbiggap，andtheslabsCall’tdisplay“arch’effectt

8、hestabilityoftheslabsisunderthreaten，whichistheproblemthatengineeringdepartmentisworryingaboutTherefore，thispapermakesafinestudyonthearchabutmentgapanditsinfluencingfactorundertheeffectofnegativeload(3)Theinstancesthatth

9、eprojectdon’tworknormallybecauseofthedamageoftheslabsarecommonlyoccurred，thespecificbehaviorisfromsingleslabliftedtomanyslabsdamaged，andthelossisverysevereAimingatthelocalstabilityofplungepoolwithinverted—archtype，thispa