水道港口
水道港口
수도항구
JOURNAL OF WATERWAY AND HARBOR
2015年
1期
40-45
,共6页
数值模拟%河相关系%航道整治%灌河
數值模擬%河相關繫%航道整治%灌河
수치모의%하상관계%항도정치%관하
mathematical model%morphological relationship%waterway regulation%Guanhe River
潮汐河流的动力与河床断面形态存在一定关系。文章以灌河为研究对象,利用所建立的大范围潮流数学模型,计算灌河沿程落潮流量,建立流量与河道断面面积之间的关系,同时分析了沿程断面宽深比变化特点,探讨了利用河相关系结合河床宽深比特征进行灌河航道整治的思路。研究结果表明:在河床形态冲淤平衡下,灌河落潮流量与断面面积呈现极好的相关性;河道宽深比变化范围与河道特征形态有关,对于灌河这样的弯曲河流,可按弯曲段、过渡段、微弯段分别加以讨论;在实际工作中,可以利用河相关系,同时结合不同河道形态特征下的优良河段宽深比,进行航道整治工程设计。
潮汐河流的動力與河床斷麵形態存在一定關繫。文章以灌河為研究對象,利用所建立的大範圍潮流數學模型,計算灌河沿程落潮流量,建立流量與河道斷麵麵積之間的關繫,同時分析瞭沿程斷麵寬深比變化特點,探討瞭利用河相關繫結閤河床寬深比特徵進行灌河航道整治的思路。研究結果錶明:在河床形態遲淤平衡下,灌河落潮流量與斷麵麵積呈現極好的相關性;河道寬深比變化範圍與河道特徵形態有關,對于灌河這樣的彎麯河流,可按彎麯段、過渡段、微彎段分彆加以討論;在實際工作中,可以利用河相關繫,同時結閤不同河道形態特徵下的優良河段寬深比,進行航道整治工程設計。
조석하류적동력여하상단면형태존재일정관계。문장이관하위연구대상,이용소건립적대범위조류수학모형,계산관하연정락조류량,건립류량여하도단면면적지간적관계,동시분석료연정단면관심비변화특점,탐토료이용하상관계결합하상관심비특정진행관하항도정치적사로。연구결과표명:재하상형태충어평형하,관하락조류량여단면면적정현겁호적상관성;하도관심비변화범위여하도특정형태유관,대우관하저양적만곡하류,가안만곡단、과도단、미만단분별가이토론;재실제공작중,가이이용하상관계,동시결합불동하도형태특정하적우량하단관심비,진행항도정치공정설계。
There is a certain relationship between the dynamics and the riverbed sectional morphology of tidal rivers. With the help of the established large?scale flow mathematical models, taking Guanhe River for study, the discharge of ebb flow along the river was calculated, the relationships between tidal discharge and the sectional ar?eas were established, and the changes of width?depth ratio along the section were analyzed. The idea of using mor?phological relationships and the characteristics of sectional width?depth ratio to conduct waterway regulation of Gua?nhe River was also discussed. The result shows that:there is an excellent correlation between the discharge of ebb tide and sectional areas in Guanhe River in the riverbed morphology erosion and deposition equilibrium state. Due to correlation between width?depth ratio and morphological characteristics, meandering rivers like Guanhe can be respectively discussed by bending section, transition section and slightly curved section. In practice, waterway regu?lation engineering can be designed by using morphological relationships combined with the sectional width?depth ra?tio of the different river morphology characteristics.