| ENERGY DISSIPATION AND CALCULATION OF RESISTANCE AND VELOCITY OF DEBRIS FLOW |
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| 作者姓名： | FEI Xiangjun and XIONG Gang |
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| 作者单位： | 1 Prof. of Dept. of Hydraulic Engg.，Tsinghua University，Beijing 100084，P. R. China z Doctor of Dept. of Hydraulic Engg.，Tsinghua University，Beijing 100084，P. R. China |
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| 摘 要： | I.I~rnoxTherearemanyproblemsfortheresearchondebrisflowmechanism.ThemostimPOrtantandmOSturgentoneisthecalculationofresistanceandvelocityOfdebrisflow.Inthisaspectmuchresearchhasbeencompletedfromtwoapproaches.Oneapproachisbasedonordinaryhydraulicsandmodifiedbyfieldobservationdata,andempiricalformulaeofdebrisflowresistanceandvelocitywereestablished.MOStoftheearlyresearch,suchascalculatingdebrisflowvelocitywiththemodifiedformOfMariningformula,belongedtothisscope.Theonlydifferenceisthattherough…
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ENERGY DISSIPATION AND CALCULATION OF RESISTANCE AND VELOCITY OF DEBRIS FLOW |
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| FEI Xiangjun and XIONG Gang.ENERGY DISSIPATION AND CALCULATION OF RESISTANCE AND VELOCITY OF DEBRIS FLOW[J].International Journal of Sediment Research,1997(1). |
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| Authors: | FEI Xiangjun and XIONG Gang |
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| Abstract: | Because of the high concentration and broad grain-size composition, the mechanism of debris flow is very complicated. The urgent problems in debris flow control, such as the calculations of debris flow resistance and velocity, are not Perfectly solved until now. In this paper, according to the theory of sediment transport mechanics, the movement types and energy dissipation of different size grains are analyzed. The new calculation method of the resistance and velocity of all types of debris flows is proposed based on macroscopic energy, and it can be applied to debris flow in practice. |
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| Keywords: | Debris flow Energy dissipation Resistance Velocity |
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