CAJ | 학술논문

利用量纲分析原理讨论了黄河中下游河道各种水力要素及边界条件对推移质输沙率的影响，建立了反映河床形态因子的综合无量纲水流强度指标，同时分析了各水流强度指标与推移质泥沙输移强度的相关关系。结果表明：无量纲综合水流切应力指标和无量纲综合水流功率指标均与推移质泥沙输移强度有较好的相关性；在水流强度很低、无量纲水流功率综合指标W*2＜600时，水流功率综合指标与推移质输移强度的关联度有一定的波动性；随着水流强度增大，无量纲水流功率综合指标600＜W*2＜7000时，水流功率综合指标与推移质输移强度有着较好的关联度。
이용량강분석원리토론료황하중하유하도각충수력요소급변계조건대추이질수사솔적영향，건립료반영하상형태인자적종합무량강수류강도지표，동시분석료각수류강도지표여추이질니사수이강도적상관관계。결과표명：무량강종합수류절응력지표화무량강종합수류공솔지표균여추이질니사수이강도유교호적상관성；재수류강도흔저、무량강수류공솔종합지표W*2＜600시，수류공솔종합지표여추이질수이강도적관련도유일정적파동성；수착수류강도증대，무량강수류공솔종합지표600＜W*2＜7000시，수류공솔종합지표여추이질수이강도유착교호적관련도。
Based on dimensional analysis principle,the influence on the bed load transport rate had been discussed by several hydraulic elements and boundary conditions. The dimensionless comprehensive flow intensity index,reflecting river bed form factor,had been established,and rela-tionship between flow intensity and bed load transport intensity had been analyzed. Analysis shows that both dimensionless comprehensive flow shear stress index and flow power index have a better correlation with the dimensionless bed load transport intensity. When the flow strength is low,di-mensionless composite flow power index W*1 <600,the relevance between flow power index and bed load transport intensity have some fluctuating. When the flow strength is increase,dimensionless composite flow power index 600<W*1 <7 000,the relevance between flow power index and bed load transport intensity have a good agreement.