| MOVING AND STAGNATION OF DEBRIS FLOW |
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| 作者姓名： | YU Bin Associate Professor Institute of Mountain Hazards and Environment Chinese Academy of Science P. O. BOX . Chengdu. PR China. |
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| 作者单位： | YU Bin Associate Professor，Institute of Mountain Hazards and Environment，Chinese Academy of Science，P. O. BOX 417. Chengdu. 61 0041，PR China. |
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| 摘 要： | LINTRODUCTIONThedebrisflowisaverycomplexflow.Itdiffersfromwaterflowandsuspendedflowinmovingandstagnation.Thedebrisflowisgenerallydiscribedasthegravityflowofsoil.rock,waterandinitiatedbylandslide,usuallyduetohighrunoffflow.Theoccurrenceofdebrisflowisratherunpredictableandverydestwhve.Debrisflowcouldmovefasterthanthemorecommonlandslideandtendto~tareasatmuchgreaterdistancefromthesourceofhazard.Debrisflowdisastershavebeenrecognizedasacriticalproblemfacingtheworldtodayandincreasingattentionha…
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MOVING AND STAGNATION OF DEBRIS FLOW |
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| YU Bin Associate Professor,Institute of Mountain Hazards and Environment,Chinese Academy of Science,P. O. BOX . Chengdu. ,PR China..MOVING AND STAGNATION OF DEBRIS FLOW[J].International Journal of Sediment Research,1997(3). |
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| Authors: | YU Bin Associate Professor |
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| Institution: | YU Bin Associate Professor,Institute of Mountain Hazards and Environment,Chinese Academy of Science,P. O. BOX 417. Chengdu. 61 0041,PR China. |
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| Abstract: | Debris flow can be described by Bingham model. Finite-volume technique is employed forsolving the equations of momentum and continuity. In numerical simulations, the minimum depthof the debris flow can be obtained. If the flow depth is less than the minimum depth, the debrisflow would stagnate until boundary conditions have changed. Ten different viscosity samples wereused in our numerical simulations. With help of the results, laws were derived putting theminimum depth of debris flow in relation to slope, viscosity and velocity. These laws were provedby tests and field observations. |
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| Keywords: | debris flow Bingham model Finite-volume numerical simulation minimum depth stagnate |
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