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泥石流是山区常见的一种自然灾害现象。它是由大量泥沙、石块等固体物质和水组成的结构性流体。由于泥石流体中泥沙、石块和水组成的比例和结构不同,使它具有不同的静力学性质,这就在很大程度上决定了泥石流不同的运动特性。通过对云南盈江浑水沟粘性泥石流浆体的流变性及水土质的分析试验,使我们对含有一定数量的粘土矿物粗粒浆体有了如下认识。由于测试仪器的限制,一般采用剔除法仅对小于1毫米的浆体(似均质体)进行测定,其中值粒径约0.32毫米。
Debris flow is a common natural disaster in mountainous areas. It is a large number of sediment, rocks and other solid substances and water composed of structural fluid. Due to the different proportions and structures of sediment, rock and water in the debris fluid, it has different statics properties, which largely determines the different movement characteristics of the debris flow. Through the analysis of the rheology and water and soil quality of viscous debris flow in Yingjiang muddy gully in Yunnan, we have got the following knowledge about the coarse-grained slurry containing a certain amount of clay mineral. Due to the limitations of the test equipment, the culling method is generally used for the determination of slurries (like homogenates) smaller than 1 mm, with a median diameter of about 0.32 mm.