CAJ | 학술논문

利用动态泥沙粒形分析技术对黄河泥沙颗粒进行了形态分析，从微观上解释了黄河“揭河底”现象产生的机理：黄河泥沙的颗粒级配组成范围非常广，完全具备产生卫星化现象的客观条件；在泥沙输移过程中，粗细泥沙颗粒能形成河床层理淤积结构，中间层的小颗粒泥沙往往黏在大颗粒泥沙上形成不规则颗粒，从而引起泥沙颗粒的堆积，形成强度非常大的胶泥块，一旦遇到合适的水沙条件，就易产生“揭河底”现象。
이용동태니사립형분석기술대황하니사과립진행료형태분석，종미관상해석료황하“게하저”현상산생적궤리：황하니사적과립급배조성범위비상엄，완전구비산생위성화현상적객관조건；재니사수이과정중，조세니사과립능형성하상층리어적결구，중간층적소과립니사왕왕점재대과립니사상형성불규칙과립，종이인기니사과립적퇴적，형성강도비상대적효니괴，일단우도합괄적수사조건，취역산생“게하저”현상。
Based on the speciation analysis of the sediment particles using dynamic sediment grain shape analysis techniques,the mechanism of bottom tearing phenomenon of the Yellow River was explained from the microscopic. The results of the analysis show that due to the wide range of particle size in the river,the sediment apt to get satellited. The large particles can be silted layeredly in the river bed,while the tiny particles ad-here to the irregular large ones and form rubber mud with high viscosity. Once encountering appropriate water and sediment condition,the bottom tearing phenomenon will be happened.