IMHE OpenIR  > 山地灾害与地表过程重点实验室
Experimental study on the deposition process of debris flows
Zhou GD(周公旦); M.L. Fei; Q.C. Sun
Corresponding Author周公旦
Source Publication第35届国际水力学大会 ; Proceedings of the 35th IAHR World Congress
Conference Date2013-9-15
Conference Place成都
Funding Organization四川大学 ; 清华大学
AbstractDebris flow is generally composed of a wide range of solid particles and viscous pore fluids. It flows at a high traveling velocity down a sloping channel. Interactions between solid and fluid phases affected by multiple parameters govern the rheological properties of debris flows. Study on the deposition process of hazardous geophysical flows (e.g., debris flows) is crucial for the hazard mitigation and prediction. In this study, large flume model tests of debris flows were conducted. The flow thickness, frontal velocity, solids concentration, and basal total/pore-water pressures of debris flows along the sloping channel were measured, and the deposition process of decelerated debris flows on the horizontal ground was monitored. Multiple surges and the grain-size distribution of debris mass in the deposition fan was measured and depicted. The flume model test results illustrate that reverse and longitudinal segregation in two directions occurs in the deposition process of granular debris flows.
KeywordDebris Flow Experiment Deposition Process Solids Segregation
Subject Area水利工程
Indexed ByCPCI(ISTP)
Document Type会议论文
Recommended Citation
GB/T 7714
Zhou GD,M.L. Fei,Q.C. Sun. Experimental study on the deposition process of debris flows[C],2013.
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