摘要
通过泥石流野外观测资料分析,得出稀性泥石流及粘性泥石流存在颗粒不分选的浆体,并讨论了一般形式的泥石流流速公式,它适用于类似蒋家沟各种类型的泥石流。
The results of analysis on debris flow data in the field show that there is slurry body of unsorted grains in micro- viscous and viscous debirs flows, i. e. unsorted slurry body with upper-limit size of 0. 05mm (fine grain slurry body) is in γm>1. 4 micro-viscous debris flow; and it with upper-limit size of 2.00mm (debris flow slurry body) is in γm>1. 9 viscous debris flow. These slurry is of the properties of Non-Newton flow body ,as well as an important effect in the formation and motion of debris flow is discussed in this paper. It is distinct from other empirical formulae of flow vilocity and can be used in debris flow calculation.
出处
《山地研究》
CSCD
1991年第3期143-152,共10页
基金
中国科学院东川泥石流观测研究站基金
关键词
泥石流
运动
浆体
细颗粒
debris flow, slurry concentration,resistance
