ОБ ОЦЕНКЕ СИЛЫ ПРОГОЗИРУЕМОГО ЗЕМЛЕТРЯСЕНИЯ

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MOVING AND STAGNATION OF DEBRIS FLOW

LINTRODUCTIONThedebrisflowisaverycomplexflow.Itdiffersfromwaterflowandsuspendedflowinmovingandstagnation.Thedebrisflowisgenerallydiscribedasthegravityflowofsoil.rock,waterandinitiatedbylandslide,usuallyduetohighrunoffflow.Theoccurrenceofdebrisflowisratherunpredictableandverydestwhve.Debrisflowcouldmovefasterthanthemorecommonlandslideandtendto~tareasatmuchgreaterdistancefromthesourceofhazard.Debrisflowdisastershavebeenrecognizedasacriticalproblemfacingtheworldtodayandincreasingattentionha…     

Mechanics of Sediment Transport

After12yearssinceProfDr.NingChienpassedawayin1986,theEnglishversionofhismasterpiece"MechanicsofSedimentTransport"wasfinallypublishedbyASCEpressin1998.Thebookisimmeadialelyfeaturedunder"ASCEBestSellingTit-tles"andwelcomedbyhydraulicengineersandscientists.ThereforethemarketingassistantofASCE,Mr.BestyShepardwroteMrs.ChienforC0ngratulation.Dr.Chienspent30yearsforthebook.Intheprefacehewrote:"ThewritingofthisbookwasbeganwhileIwasstillatanageintheprimeoflifeandendedattheagewithgreyingtem…     

2003年ISI期刊索引报告(地球化学与地球物理类)

期刊名 2 0 0 3年总引频次影响因子即年指标AMMINERAL 86 72 1.6 810 .338ANNGEOFIS 4 2 90 .6 83ANNGEOPHYS ITALY 2 30 .176 0 .131APPLGEOCHEM 18931.80 4 0 .2 5 0AQUATGEOCHEM 2 330 .92 6ASTRONGEOPHYS 72 0 .5 110 .0 75BSEISMOLSOCAM 6 6 6 81.6 810 .2 2 2CHEMERDE GEOCHEM 135 0 .2 86 0 .0 0 0CHEMGEOL 812 12 .330 0 .4 0 2CHINESEJGEOPHYS CH 2 780 .375 0 .0 38CONTRIBMINERALPETR 80 94 2 .8310 .2 4 2DYNAMATMOSOCEANS 4 4 80 .732 0 .0 6 2EARTHPLANE…     

International Journal of Sediment Research Index of Vol. 16

I. Soil erosion and sediment yieldDevelopment of Soil Erosion Index Model in Taiwan WatershedsVol. 16, No. 1, pp. 80-90 Modeling of Sediment Yield and Nonpoint Source Pollutant YieldVol. 16, No. 3, pp. 416-420 Runoff Generation Characteristics in Typical Erosion Regions on the Loess PlateauVol. 16, No. 4, pp. 473-485II. Environmental and ecological sedimentationLong Term Effects of Rehabilitation Measures on Bed Load Transport at the Salzach River Vol. 16, No. 2, pp. 95-102 Th…     

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SHOULD BESTOW MORE PHYSICAL CONNOTATION ON GRAIN SIZE PARAMETER

1.INTRODUCnONSAn~sizeplaysanimpo~roleinmanyfields,SUChasinndmeDt-laden~ordebrisflow.TheStateofsedimentmovementwhateVertheyaresugunded.jUInpingorbed-loading,isoftencloselyrelatedtOtheirSizes.Thebodyor~forcesbornacaglainareOftendiredproponionedtotheabcorSq~sizeofthisgrain.Thereforesedimentsizeisanimpohalltindextoesedimentcharacteristics.Besides,depositsizeanditsdistributionimplysome~infonnationdepositingfonnationenvironmentandcauseing~hyandgeqlogy.Ina~on.thesizeanditsdistributionareeac…     

TWO-DIMENSIONAL SEDIMENT MATHEMATICAL MODEL FOR UNSTEADY FLOW IN THE LOWER YELLOW RIVER

IINTRODUCTIONTheYellowRiverisfamousforitsheaVysedimentloadandcompledpluvialprocessesobviousadvanceshavebeenmadeinthetwo-dimensionalsedimentmathematicalmodel.Amongtile1llodelscreatedbeforethemechanismofsedimenttransportandrelatedphysicalparametel's,suchassedimentvelocity,sedimentcan'yingcapacityandriverfi.ictionetc.arenotyetundel.stoodvery\veil.Thesynchronousobserveddataoftheflowwithsediment,especiallyathyperconcentration,arenotenougllforthemodelcalibration.Thereforethedevelopmentoftwo-di…     

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I.I~rnoxTherearemanyproblemsfortheresearchondebrisflowmechanism.ThemostimPOrtantandmOSturgentoneisthecalculationofresistanceandvelocityOfdebrisflow.Inthisaspectmuchresearchhasbeencompletedfromtwoapproaches.Oneapproachisbasedonordinaryhydraulicsandmodifiedbyfieldobservationdata,andempiricalformulaeofdebrisflowresistanceandvelocitywereestablished.MOStoftheearlyresearch,suchascalculatingdebrisflowvelocitywiththemodifiedformOfMariningformula,belongedtothisscope.Theonlydifferenceisthattherough…     

西藏吉隆-沃马盆地龙骨沟剖面古地磁年代学及喜马拉雅山抬升记录

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LANDSLIDE ANALYSIS IN TAIWAN

I.INTRODUCTIONForagrowingandprogressivesocietywitheconomicadvancement.Wehavetodoourbesttomanageintensivelyoursoilandwaterresources.Wehavetousethemforgenerationstocomeandthereforewemustprotectandimprovethematthesametime.TaiwanisanislandlocatedintheweSternPacificOcean,andhasanareaof36,000Km2.ItresemblesashapeoftobaccoleafandiscomPOsedoftwo-thirdsmountains.Theaverageannualrainfallisconcentrated70%ofitstotal2510nunintheperiodofMaytoSeptember,theothermonthsaremostlydry.Becauseoftheprecipi…     

书评:《工程隔震概论》

书名:《工程隔震概论》 ("An Introduction to Seismic Isolation") 作者:R.I.史金楠 (R.I.Skinner) W.H.鲁宾逊 (W.H.Robinson) G.H.麦克凡莱 (G.H.McVerry) 出版社:英国约翰维莱和森司出版社(John Wiley and Sons, UK) 出版时间:1993年     

Papers published in Vol. 22, No. 1-3, 2007

No. 1, 2007 Prediction of the Grain Size of Suspended Sediment: Implications for Calculating Suspended Sediment Concentrations Using Single Frequency Acoustic Backscatter R. A. KUHNLE, D. G. WREN, and J. P. CHAMBERS (pp. 1-15) Numerical Modeling of Heavy Metal Pollutant Transport-Transformation in Fluvial Rivers:A Review S. L. HUANG, Z. H. WAN, and P. SMITH (pp. 16-26) Sediment Transport Capacity-An Improved Bagnold Formula Shu-Qing YANG, Sung-Cheol KOH, In-So…     

International Journal of Sediment Research Index of Vol. 20

I. Soil Erosion and Sediment Yield Downslope Erosion Process under Upslope Runoff and Sediment Using a Dual-Box System Peiqing Xiao, Fenli Zheng and Wenyi Yao (No. 2, pp. 136-142) Modeling Ephemeral Gully Erosion for Conservation Planning George R. FOSTER (No. 3, pp. 157-175) Hydrologically Driven Mechanisms of Headcut Development M. J. M. R?MKENS and S. N. PRASAD (No. 3, pp. 176-184) Numerical Simulation of Head-cut with a Two-layered Bed Yafei JIA, Tadanori KITAM…     

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ADVANCES IN MEASURING TECHNIQUES OF BED LOAD

I.m~UCrIONBedloadisthesedimentwhichmovesalongtheriverbedintheformofrolling,slidingandsaltation.BedloadmaycreatemanyproblemsintheoperationandmaintenanceofnavigationchannelandinthedevelOPmentofhydroelectricity.Dataofbedloaddischargearealsorequiredinthedesignofreservoir,inwhichtheinflowbedloadareallactuallytrapped.Thewaysofbedloadmotionaredifferentfordifferentsizes.Thus,itisextremelydifficulttodeterminethebedloaddischargeaccurately.Manyequationshavebeenproposedtocalculatethebedloaddischarge.H…     

探索中的几类地震前兆的物理依据

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Dynamic damage and its physical meaning as a seismicity status parameter

Whentherearemicroormacrofissuresinrock,itisconsideredthattherockseveresdamage.Becausethesefissuresarenotsimplifiedintooneormorecracks.Intheconditionoffatigueandofcreepstrain,manymicrofissurescandevelopintothemacrofractureintherockwhere\/ecallitadamagedregion.Recentlythemechanicsfunctionofadamagedregionisconsideredacontinuedvariancefieldoradamagedfield.Withthestatisticalmechanicsmethod,thedamagedrockresearchescanmakeusseethewholeprocessofbreaking.lDynamicdamageThedamageisaresultfrommanyfissure…