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1.
Onthebasisofpreviousresearchandpractice,anewmodelsandBZYhasbeensuccessfullydeveloped.Experimentshavebeencarriedoutonitsproperties,includingunitweight,initiationvelocity,settlingvelocity,reposeangle,etc.TheexperimentsshowthattheBZYmodelsandhasmanymeritsoverothers,suchasadjustableunitweight,widerangeofparticlesize,particleshapesimilartonaturalsandandstablephysicalandchemicalproperties.Thusithashighvalueforstudy,developmentandextensionforapplication.Stillsomeofitspropertiesneedtobefurtherstudied  相似文献   

2.
Thepatterns(inflowplan)ofroughturbulentsteadyflowsinmeanderingstreamsareinvestigatedexperimentally.Theflowcrosssectionisrectangular,theflowwidthisconstant,thechannelbedisflat;theplanshapeissinegenerated.Incontrasttopreviousworks,wherethecomputedflowpatternswereofthesamecharacter,irrespectiveofthesinuosityofthechannel,itisfound,onthebasisofpresentexperiments,thateverydifferentplangeometryofameanderingflowhasitsownflowpicture.Inthecaseof“small"sinuositychannels,theflowconvectivelyacceleratesattheinnerbankbet  相似文献   

3.
TheMarkVlietriversystemtransportsbedmaterialandpollutedsuspendedsedimentstotheVolkerakZoomlake,awaterenvironmentofhighlimnologicalvalue.Toprotecttheliving,workingandrecreationareasinthiscatchment,aproperintegratedwatermanagementisessential.Asystematiccontrolandsanitationofthepollutedsedimentsintheriverenvironmentwillhelptostopfurtherdegradationofthewaterecosystemquality.Therefore,atransboundarycollaborationbetweenBelgianandDutchauthoritiesissetuptostudyandsanitatethisinterregionalrivercatchment.Toimprove  相似文献   

4.
THEROLEPLAYEDBYWASHLOADDEPOSITIONINTHEFORMATIONOFDIFFERENTRIVERPATTERNSThelowerlayerofthebedmaterialconsistsoftinesandandtheupperlayerconsistsofamixtureofclay(10%)andtinesand(90%).NATURALRIVERSl.ChangeofchannelpatternsalongarivercourseItiscommonthatintheupperPartofanalluvialriverthelongitudinalslopeissteepandtherivercarriesheavysedimentload.Duetothesteepslopeandassociatedhighvelocityclaysettleslittleevenontloodplain.Floodplainorriverhankconsistsofsiltandtinesand.Theriverbehavesasawanderingone.Passingacert  相似文献   

5.
SEDIMENTATIONINLOWHEADRIVERRESERVOIRS¥WilhelmBechteler(Prof.Dr.-Iug.InstituteofHydrosciences,FederalArmedForcesUniversityMuni...  相似文献   

6.
Microearthquakeanalysisforhydraulicfrac┐turingprocesYING-PINGLI(李应平)DepartmentofEarth,AtmosphericandPlanetarySciences,Masach...  相似文献   

7.
Thisbibliographyonpierscouringcoversaperiodfrom1873to1996includingover300references.Althoughtheemphasisinthisbibliographyisonpierscouringassociatedwithmechanismofscour,parametersaffectingscour,timedependentscour,designformulas,modelingandprotectionworks;complementarystudiesonhorseshoevortexatpiersorcylindersarealsoincluded  相似文献   

8.
Contributorstothisissue¥//De-YuHUANG(黄德瑜)ProfessoroftheCenterforAnalysisandPrediction,StateSeismologicalBureau.Graduatedfromt...  相似文献   

9.
ContributorstothisissueXue-ShenJIN(金学申);AssociateProfessorattheSeismologicalBureauofHebeiProvince.GraduatedfromtheGeophysical...  相似文献   

10.
Theoptimumsource-timefunctionforgeneratingfinite-differencesyntheticseismogramsAbdolrahimJAVAHERIAN(InstituteofGeophysics,the...  相似文献   

11.
ContributorstothisisuePARVIZMOZAFFARIReceivedhisB.Sc.degrefromtheEarthScienceDepartmentofIranianNationalUniversityin1979.In19...  相似文献   

12.
TherelationbetweentheresponsespectrumandthephasediferencespectrumFENG-XINZHAO(赵凤新)andYU-XIANHU(胡聿贤)InstituteofGeophysics,Sta...  相似文献   

13.
EFFECTOFEXISTENCEOFSEDIMENTPARTICLESONTHEENERGYLOSSOFFLOW¥LIUQingquan;CHENLiandLIUDayou(Assoc.ResearchFellow,InstituteofMecha...  相似文献   

14.
(王键)Probabilisticpredictivemodelwithcomplexremembrance¥JianWANG(InstituteofGeophysics,StateSeismologicalBureau,Beijing100081,...  相似文献   

15.
No .1  (SeriesNo .6 1 ) March  2 0 0 2TheCharacteristicsofGeophysicalFieldontheChinaSeasLIUGuang ding  (1 )………………………………GeophysicalEvidencesofSomeImportantFaultsinSouthChinaandAdjacentMarginalSeasRegion   ………HAOTiao yao,LIUJian hua ,SONGHai bin,etal.  (1 3)………………………………………  相似文献   

16.
Griddispersioningeneratingfinite-differencessyntheticseismogramsAbdolrahimJavaherian(InstituteofGeophysics,theUniversityofTeh...  相似文献   

17.
On unified analysis of uncertainty in seismic hazard assessment   总被引:2,自引:0,他引:2  
(胡聿贤,陈汉尧)Onunifiedanalysisofuncertaintyinseismichazardassessment¥Yu-XianHUandHan-YaoCHEN(InstituteofGeophysics,StateSeismolog...  相似文献   

18.
MacroseismicformulafordetermininghypocentraldepthanditsprecisecalculativemethodXINGBEIDUAN(段星北)4EntrancetoNo.110ofBuilding...  相似文献   

19.
ZONALCHARACTERISTICSOFSEDIMENTYIELDOFRIVERBASINSCHINAXUJiongxin(Professor,InstituteofGeography,ChineseAcademyofSciences,Beiji...  相似文献   

20.
THEPANTANAL:ANECOSYSTEMINNEEDOFPROTECTION¥MareP.Bordas(Professor,DepartmentofHydraulics,InstituteofHydraulicResearch(IPH),Fed...  相似文献   

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