Deposition Prediction of Debris Flow Alluvial Fan Based on Experimental Study

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Abstract:

The deposition prediction of debris flow hazardous area is very important for organizing and implementing debris flow disaster prevention and reduction. This paper selected the data base from laboratory experiments and applied the multiple regression statistical method to establish a series of empirical calculation models for delimiting the debris flow hazardous areas on the alluvial fan. The empirical models for predicting the maximum deposition length (Lc), the maximum deposition width (Bmax) and the maximum deposition thichness (Z0) under the condition of different debris flow volumes (V), densities (rm) and slopes of accumulation area (θd) were establised. And the verification results indicated that the established models can predict the debris flow hazards area with the average accuracy of 86%.

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Periodical:

Advanced Materials Research (Volumes 518-523)

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4819-4822

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May 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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