浙江水利科技
浙江水利科技
절강수리과기
ZHEJIANG SHUILI KEJI
2014年
5期
34-37
,共4页
陈立%黄杰%何小花%郝婕妤%平妍容%周敏
陳立%黃傑%何小花%郝婕妤%平妍容%週敏
진립%황걸%하소화%학첩여%평연용%주민
武桥水道%河道演变%航道整治工程%汉阳边滩
武橋水道%河道縯變%航道整治工程%漢暘邊灘
무교수도%하도연변%항도정치공정%한양변탄
Wuqiao waterway%watercourse evolvement%regulation project%scouring and silting
武桥水道是长江中游的重点碍航水道,枯水期汉阳边滩淤积展宽,航道过于弯曲,形成碍航局面,因此2010年汛后开始实施了武桥水道航道整治工程。依据实测地形资料,分析了航道整治工程实施以来的冲淤变化。结果表明:航道整治工程实施后,武桥水道河段总体有冲有淤,冲淤量与上游水沙条件密切相关;河段的河势稳定,河道深泓线走势以及位置基本不变,在潜州洲尾自左岸至右岸过渡范围内有一定幅度的摆动;关键洲滩-潜洲的洲体整体稳定,洲尾位置下延;汉阳边滩年内变化仍然遵循“汛冲枯淤”的规律;年际间变化较大,遇到2013年汛后长时段枯水流量的不利条件,仍对通航产生不利影响,需采取疏浚措施。
武橋水道是長江中遊的重點礙航水道,枯水期漢暘邊灘淤積展寬,航道過于彎麯,形成礙航跼麵,因此2010年汛後開始實施瞭武橋水道航道整治工程。依據實測地形資料,分析瞭航道整治工程實施以來的遲淤變化。結果錶明:航道整治工程實施後,武橋水道河段總體有遲有淤,遲淤量與上遊水沙條件密切相關;河段的河勢穩定,河道深泓線走勢以及位置基本不變,在潛州洲尾自左岸至右岸過渡範圍內有一定幅度的襬動;關鍵洲灘-潛洲的洲體整體穩定,洲尾位置下延;漢暘邊灘年內變化仍然遵循“汛遲枯淤”的規律;年際間變化較大,遇到2013年汛後長時段枯水流量的不利條件,仍對通航產生不利影響,需採取疏浚措施。
무교수도시장강중유적중점애항수도,고수기한양변탄어적전관,항도과우만곡,형성애항국면,인차2010년신후개시실시료무교수도항도정치공정。의거실측지형자료,분석료항도정치공정실시이래적충어변화。결과표명:항도정치공정실시후,무교수도하단총체유충유어,충어량여상유수사조건밀절상관;하단적하세은정,하도심홍선주세이급위치기본불변,재잠주주미자좌안지우안과도범위내유일정폭도적파동;관건주탄-잠주적주체정체은정,주미위치하연;한양변탄년내변화잉연준순“신충고어”적규률;년제간변화교대,우도2013년신후장시단고수류량적불리조건,잉대통항산생불리영향,수채취소준조시。
Wuqiao waterway is a straight narrowed waterway located in the middle reach of the Yangtze River , which is one part of wuhan reach . Hanyang side bar deposits in dry season so that the scene of the obstruction of the navigation channel appears because of the serious twist of channel . The regulation project was started after the Flood Season in 2010 . this paper analyses the variation of scouring and silting after regulation . The results shows :scouring and silting coexist in wuqiao waterway ;the amounts of channel scour and fill is very close to silt-discharge condition of the upper reach ;the river regime is stable , the tendency and the location of talweg are essentially unchanged . There is a certain amount of swing in the transition range from left to right at the Qianzhou tail . As a key bottomland , the body of Qianzhou is integrally stable , while its tail moves down . The rule of “erosion works in flood period and deposition works in dry period”still applies to Hanyang side bar during the year and the annual variation of Hanyang side bar is great When it meets the extremely adverse condition of a long period of low flow after flood season in 2013 , the navigation obstruction still exists and dredging measures still needs to be taken .