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THE DISCUSSION ON FORMULAE FORCALCULATING VELOCITY OF THE DEBRIS FLOW

Hong Zhengxiu(Design Institute of Tunnel Engineering Bureau, Ministry of Railway)  
The paper discussed the problems which prensent in the formulae generally used for the calculation of current velocity of debris flow and find a solution for the problems.Then based on the observed data (153 groups of viscous debris flow, 31 groups of rarefied debris flow), a regression equation for calculating the current velocity of viscous and raiefied debris flow with a higher precision is established. Due to the Parameters included in statistical data change with a wide scope and extensive area less independent variables are chosen, so the new formulae with a maneuver-ability are worthy to be popularized.
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