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Research on Engineering Control Effect on Hongchun Gully Debris Based on FLO-2D Model
Author(s): 
Pages: 376-381
Year: Issue:  3
Journal: Geology-Geochemistry

Keyword:  Flo-2DHongchun gullywatershed modelaccumulation depthflow velocity;
Abstract: Since the Wenchuan Earthquake there has been seven years,and the safety of people and property has been affected by this large geological disaster deeply. In order to prevention the geological disasters and protect the rebuilding after the disasters. Study on effect of geological disaster prevention engineering is crucial. This paper select Ganxipu ditch,Dashui ditch,and Xindianzi ditch from Hongchun Bully as research zones,using the two-dimensional rheological model FLO-2D,continuity equation and motion equation,combined with digital elevation model of network,to set up watershed model,analyze and calculate the debris flow accumulation depth and flow velocity under the condition of engineering governance. Regulation effect on debris was also analyzed by computer numerical methods.
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