CAJ | 학술논문

对非均质流挟沙力研究现状分析表明，目前悬移质水流挟沙力公式存在的问题：一是未能正确反映水流势能转化为动能过程中必须考虑的阻力因子；二是未能正确处理泥沙颗粒的非均匀性特点；三是未能正确计算悬液黏度对颗粒沉速的影响。本文基于大量室内平衡输沙试验及野外河渠准平衡输沙观测资料，建立了非均匀沙悬移质输沙平衡关系，得到了新的适用于各级含沙量的非均匀沙悬移质挟沙力公式。进而根据建立的输沙平衡关系，得到了挟沙水流的不淤流速及阻力坡降关系，可用于河道治理及渠系设计。
대비균질류협사력연구현상분석표명，목전현이질수류협사력공식존재적문제：일시미능정학반영수류세능전화위동능과정중필수고필적조력인자；이시미능정학처리니사과립적비균균성특점；삼시미능정학계산현액점도대과립침속적영향。본문기우대량실내평형수사시험급야외하거준평형수사관측자료，건립료비균균사현이질수사평형관계，득도료신적괄용우각급함사량적비균균사현이질협사력공식。진이근거건립적수사평형관계，득도료협사수류적불어류속급조력파강관계，가용우하도치리급거계설계。
A review of present research on sediment carrying capacity of two-phase heterogeneous flows re?veals several shortcomings in existing suspended-sediment carrying capacity formulas, which firstly do not reflect the friction factor correctly when potential energy converts into kinetic energy, and secondly do not account the non-uniformity of sediment particles well and thirdly, cannot correctly calculate the effect of viscosity of suspended sediment solution on fall velocity of sediment particles. An equilibrium relation of non-uniform sediment transport has been established and sediment carrying capacity formulas are obtained, which can be used for non-uniform sediment with various amount of sediment concentrations. At top of this, relations of non-deposition velocity and friction slope for two-phase heterogeneous flows have also been obtained,which can be used for design of river training and channels.