人民长江
人民長江
인민장강
Yangtze River
2015年
17期
10-14
,共5页
分流比%河槽容积%航道条件%整治思路
分流比%河槽容積%航道條件%整治思路
분류비%하조용적%항도조건%정치사로
diversion ratio%channel volume%waterway condition%regulation idea
为了提高对长江下游和畅州汊道演变规律的认识,以该河段大量实测资料为依据,从分流比、河槽容积以及航道条件的相关关系出发,分析了其河势的演变及航道存在的主要问题. 研究表明,在和畅洲右汊分流比小于30%、0 m以下河槽容积小于0. 8亿m3 时,航道条件总体趋于恶化. 对和畅洲水道河势控制和航道整治思路进行了初步的探讨,建议采取的工程措施包括,适当加大右汊分流比、增强右汊水流动力条件、稳定并提高右汊现有河道容积.
為瞭提高對長江下遊和暢州汊道縯變規律的認識,以該河段大量實測資料為依據,從分流比、河槽容積以及航道條件的相關關繫齣髮,分析瞭其河勢的縯變及航道存在的主要問題. 研究錶明,在和暢洲右汊分流比小于30%、0 m以下河槽容積小于0. 8億m3 時,航道條件總體趨于噁化. 對和暢洲水道河勢控製和航道整治思路進行瞭初步的探討,建議採取的工程措施包括,適噹加大右汊分流比、增彊右汊水流動力條件、穩定併提高右汊現有河道容積.
위료제고대장강하유화창주차도연변규률적인식,이해하단대량실측자료위의거,종분류비、하조용적이급항도조건적상관관계출발,분석료기하세적연변급항도존재적주요문제. 연구표명,재화창주우차분류비소우30%、0 m이하하조용적소우0. 8억m3 시,항도조건총체추우악화. 대화창주수도하세공제화항도정치사로진행료초보적탐토,건의채취적공정조시포괄,괄당가대우차분류비、증강우차수류동력조건、은정병제고우차현유하도용적.
To strengthen the understanding of evolution laws at Hechangzhou branch channel in lower Yangtze River, the chan-nel fluvial regime variation and the main problems of waterway are discussed from the perspective of the relationship between di-version ratio, the channel capacity and waterway condition on the basis of massive measuring data. The results show that if the di-version ratio of the right branch is less than 30% and the channel capacity below 0 elevation is less than 80 million m3 , the wa-terway condition deteriorates. The thought of channel regime control and the waterway regulation are studied. The engineering measures are suggested such as increasing the diversion ratio of the right branch, improving the flow dynamic condition of the right branch, stabilizing and increasing the channel volume of the right branch.
