CAJ | 학술논문

考虑到泥沙颗粒暴露度以及颗粒形状对泥沙起动流速的影响，通过概率论与力学相结合的方法，推导得到了非均匀沙起动概率公式，从而建立了起动流速与起动概率之间的明确关系。与实测起动流速对比表明，该公式能正确反映非均匀沙的运动规律。
고필도니사과립폭로도이급과립형상대니사기동류속적영향，통과개솔론여역학상결합적방법，추도득도료비균균사기동개솔공식，종이건립료기동류속여기동개솔지간적명학관계。여실측기동류속대비표명，해공식능정학반영비균균사적운동규률。
The incipient motion of sediment is one of the most important subjects for the research of river dynamics. In this pa2 per,theprobabilityformulaofincipientmotionofnon2uniformsedimentwasdeducedusingthecombinationmethodofprobabil2 ity and mechanics in consideration of the impacts of exposure degree and shape of sediment on the threshold velocity. The rela2 tionship betw een threshold velocity and threshold probability w as developed. Compared w ith the measured incipient velocity, the formula can reflect the movement of non2uniform sediment accurately.