摘要
根据野外泥石流浆体观测试验分析，通过对不同粒径沙颗粒的甘油沙浆流变试验，以及动摩擦临界浓度（Cvos）和极限浓度(Cvm)的实验研究，导出了反映泥石流浆体结构强度的屈服应力综合表达式，以便为泥石流高浓度、高速运动机理的探讨和泥石流防治工程的设计提供有科学依据的参数．
According to observational and experimental analysis of debris flow slurry in the field, yielding stress synthetic equation reflecting structural strength of debris flow slurry is derived by experimental research of rheological texts of glycerin sand flows from different diameters, critical densities of dynamic friction (Cvos) and maximum densities(Cvm). The Equation is applicable for research on mechanism of debris flow movement with high velocity and hyperconcentration, and supply of supply of scientific parameter for prevention and control of debris flow.
出处
《自然灾害学报》
CSCD
1999年第3期103-110,共8页
Journal of Natural Disasters
基金
国家自然科学基金!496710013
关键词
泥石流
屈服应力
综合表达式
浆体屈服应力
debris flow
yielding stress, critical density of dynamic frication
systhetic equation
