摘要
长江南支白茆沙河段自1965年开辟海轮航道,航道经常调标改道。分析表明航槽不稳定与河势、滩槽不稳定有关,没有稳定的河势就没有稳定的航槽。汊道兴衰使航槽改道,而深槽变化使航道经常调标,航道变迁也与上游通州沙河段河势不稳定及北支水沙到灌影响有关。随着上游河势趋于相对稳定,徐六泾主流稳定南偏,长江主流走南水道的格局趋于相对稳定,海轮航道稳定在白茆沙南水道。从河势变化趋势、航道水深条件等考虑选择白茆沙南水道为深水航道通航汊道。
The seagoing ship channel in Baimaosha reach of the southern branch of the Yangtze River has always been changed since its opening in 1965. Analyses show that channel instability relates to the instability of river regime,beaches and grooves. Navigable channel will not be stable without stable river regime. The rise and fall of branch channels and deep trough changes both lead to channel changes,and channel instability also relates to the upstream river regimes instability of Tongzhoushal reach and back flow of water and sediment from the northern branch of the Yangtze estuary. With the relatively stable upstream river regime, Xuliujing and Changjiang mainstream tends to be relatively stable at the southern side,and Baimaosha southern waterway will be the seagoing ship channel stablely. Considering the changing trends of river regime and channel depth conditions, this paper selects Baimaosha southern waterway for the deepwater channel.
出处
《水运工程》
北大核心
2014年第4期1-6,共6页
Port & Waterway Engineering
关键词
白茆沙水道
航道变迁
通航汊道
Baimaosha waterway
channel change
anvigable branch channel
