The prediction of dynamic characteristics on debris flow in Muchang valley of Luding County
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摘要: 对牧场沟泥石流的动力特性进行了预测,认为该沟可形成中小规模泥石流,可提供的物源量约14×104m3。按周期50年一遇算,峰值流量为58.43m3/s,泥石流体冲击应力达6.52×104Pa,单块最大冲击力可达199.74×104N,发生一次泥石流总量为18510m3,一次泥石流冲出的固体物质总量为6571m3。Abstract: The dynamic characteristics of Muchang valley is forecasted.The valley can form small and medium-sized debris flow,and the availability of the source is about 14×104m3.If we calculate according to 2% frequency of the debris flow,the discharge peak value is 58.43m3/s,the dash power of whole debris flow is 6.52×104Pa,the largest single block impact is 199.74×104N,total debris flow volume is 18 510m3,the gross amount of solid material is 6 571m3 in one debris flow. 更多还原
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Key words:
- Muchang valley /
- debris flow /
- character of drainage area /
- characteristic of dynamics
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