CAJ | 학술논문

水深、滩地糙率是具有单、双槽复式断面河道过流能力的重要影响因素。采用数学模型计算并分析不同水深及滩地糙率情况下，概化的顺直型复式断面河道的过流能力，结果表明：当滩地水深与滩地高度之比增大时，滩地流量分配比随之增大，但增大的趋势越来越弱。随着滩地水深与滩地高度之比增大，河道水力坡降降低，在滩地水深与滩地高度之比小于0．4时，增大滩地水深与滩地高度之比对于减小水面比降效果明显。随着滩地糙率的增大，滩地流量分配比迅速减小，两者呈线性相关。
수심、탄지조솔시구유단、쌍조복식단면하도과류능력적중요영향인소。채용수학모형계산병분석불동수심급탄지조솔정황하，개화적순직형복식단면하도적과류능력，결과표명：당탄지수심여탄지고도지비증대시，탄지류량분배비수지증대，단증대적추세월래월약。수착탄지수심여탄지고도지비증대，하도수력파강강저，재탄지수심여탄지고도지비소우0．4시，증대탄지수심여탄지고도지비대우감소수면비강효과명현。수착탄지조솔적증대，탄지류량분배비신속감소，량자정선성상관。
Water depth and roughness are important influencing factors of the conveyance capacity of compound channel with single main channel or double main channels. This article analyzed the conveyance capacity of generalized straight compound channel with different water depth and beach roughness applying mathematical model. The results show that the diversion ratio of beach increases with the increasing of the ratio of water depth to height of beach,but the trend is smaller and smaller. Hydraulic gradient of river decreases with the increasing of ratio of water depth to height of beach. When the ratio of water depth to height of beach is less than 0. 4,the increasing of the ratio can de-crease dramatically hydraulic gradient of river. The diversion ratio of beach decreases rapidly and linearly with increasing roughness of beach.