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在我国西部高原上某些山岭地区,由于气候、地质、地形综合作用的结果,近几年来,多处曾发生了以石子砂粒为主要成份,粘土粒很少的、具有分散性紊动状态,间歇的非凝聚型的石流。其流动速度因固体颗粘的大小不同而异,当河床纵坡变化或形态改变,常常使部分固体颗粒淤积下来,因此,对石流流速和不淤积纵坡的决定,是泥石流研究中的重要问题。现就石流流速和不淤积纵坡问题,提出一些浅见,以供参考。
In some mountain areas on the western plateau of our country, due to the combined effects of climate, geology and topography, in recent years, gravel grains have been taken as the main component in many places with very few clay particles, with dispersed turbulence, Intermittent non-cohesive stone flow. The flow rate varies with the size of the sticky solids. When the river bed longitudinal changes or morphological changes, some solid particles are often deposited. Therefore, the determination of the flow velocity of the stone flow and the non-silting longitudinal slope are important in the study of debris flow problem. Now on the flow rate of stone and silting vertical slope problems, put forward some humble opinion, for reference.