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The study of Sediment transport of low concentration in pipes bas been applied in the design of a self-cleansing storm sewer. An alternative criterion is suggested as op- posed to the widely used single flow velocity approach. A conceptual model which simu- lates the condition in a storm sewer is developed and tested against experimental data. The results proved that the volumetric sediment concentration, pipe diameter and sedi- ment size have to be taken into consideration to produce a self-cleansing storm sewer. It also shows that the slope obtained by this alternative criterion is lower than the single flow velocity approach.  相似文献   
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A DISCUSSION ON FORMATION AND EVOLUTION OF THE LANCANGJIANG PLATE JUNCTION WITH ANALOGY: WHETHER OR NOT THE LANCANGJIANG OCEAN EXISTED IN LATE PALEOZOIC  相似文献   
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Pb, Sr AND Nd-ISOTOPIC COMPOSITIONS OF PALEO AND NEO-TETHYAN OCEANIC CRUSTS IN THE EASTERN TETHYAN DOMAIN: IMPLICATION FOR THE INDIAN OCEAN-TYPE ISOTOPIC SIGNATURE  相似文献   
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CHRONOSTRATIGRAPHY,SEDIMENTATION AND EVOLUTION OF THE XIGAZE FOREARC BASIN: IMPLICATIONS FOR DYNAMIC EVOLUTION OF THE YARLUNG ZANGBO SUTURE ZONE1 All埁greCJ,CourtillotV ,TapponnierP ,etal.StructureandevolutionoftheHimalaya Tibetorogenicbelt[J] .Nature,1984 ,30 7:17~ 2 2 . 2 CoulonC ,MaluskiH ,BollingerC ,etal.MesozoicandCenozoicvolcanicrocksfromcentralandsouthernTibet:3 9Ar 40 Ardating ,petrotogicalcharacteristicsandgeodyn…  相似文献   
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STUDY ON THE ISOTOPIC CHRONOLOGY AND THE TECTONIC SIGNIFICANCE OF DUGUER GRANITIC GNEISS IN CENTRAL QIANGTANG, TIBET  相似文献   
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TECTONIC EVOLUTION OF THE YANGTZE PASSIVE MARGIN AND SONGPAN GARZ? FOLD BELT, CHINA  相似文献   
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THE FINDINGS OF THE UPPER PERMIAN IN THE CUOQIN BASIN, TIBET  相似文献   
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RECORD OF BLOCK ROTATION AND MAGNETIC FIELD REVERSALS IN THE TETHYAN HIMALAYA (HIDDEN VALLEY, CENTRAL NEPAL)  相似文献   
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YANSHANIAN AND HIMALAYAN EVOLUTION OF THE WESTERN TARIM AREA(XINJIANG CHINA):FROM THE JURASSIC TROUGH UP TO THE NEOGENE AND QUATERNARY FLEXURAL BASINtheNationalNaturalScienceFoundationofChina (No ..4982 5 10 2 )  相似文献   
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