中国港湾建设
中國港灣建設
중국항만건설
CHINA HARBOUR ENGINEERING
2014年
1期
39-44
,共6页
新洲-九江河段%河道演变%航道整治%平面二维水沙数学模型
新洲-九江河段%河道縯變%航道整治%平麵二維水沙數學模型
신주-구강하단%하도연변%항도정치%평면이유수사수학모형
Xingzhou-Jiujiang river reach%channel evolution%channel regulation%2D mathematical model
根据新洲-九江河段近几十年来原型观测资料,深入分析了顺直分汊形过渡河段的演变特点及碍航特性,提出了“固滩守槽,稳定主流”的治理原则,在此基础上提出治理方案,并结合平面二维水沙数学模型,对治理方案效果进行了计算。结果表明:河段采取以守护为主、调整为辅,利用整治建筑物稳定并适当抬高已有滩体,归顺过渡浅区枯期水流的治理思路是正确的,工程方案实施后可以较好地解决本河段的碍航问题。
根據新洲-九江河段近幾十年來原型觀測資料,深入分析瞭順直分汊形過渡河段的縯變特點及礙航特性,提齣瞭“固灘守槽,穩定主流”的治理原則,在此基礎上提齣治理方案,併結閤平麵二維水沙數學模型,對治理方案效果進行瞭計算。結果錶明:河段採取以守護為主、調整為輔,利用整治建築物穩定併適噹抬高已有灘體,歸順過渡淺區枯期水流的治理思路是正確的,工程方案實施後可以較好地解決本河段的礙航問題。
근거신주-구강하단근궤십년래원형관측자료,심입분석료순직분차형과도하단적연변특점급애항특성,제출료“고탄수조,은정주류”적치리원칙,재차기출상제출치리방안,병결합평면이유수사수학모형,대치리방안효과진행료계산。결과표명:하단채취이수호위주、조정위보,이용정치건축물은정병괄당태고이유탄체,귀순과도천구고기수류적치리사로시정학적,공정방안실시후가이교호지해결본하단적애항문제。
Based on the prototype observation data for Xinzhou-Jiujiang river reach in recent decades,the paper analyzes the corresponding fluvial evolution and navigation-failure characteristics,and puts forward the following guidelines for regulation:strengthening bars,protecting riverbed and stabilizing main stream. At the same time,a horizontal two-dimensional model is developed to check the effectiveness of undergoing regulation projects. The results indicate that the regulation of Xinzhou-Jiujiang reach mainly focuses on protection rather than adjustment and the detail lies on appropriately adjusting the main flow of shoal areas in transitional reach to maintain enough navigating depth in dry season by using regulating structures to stabilize and elevate the bars. The modeling results prove the validity of the proposed regulation which aims at solving the navigation failure problems.