论文部分内容阅读
文章结合台州湾海域历史上各年代、各测次的水文泥沙测验和实测地形资料,对该海区1934~1998年和1988~2003年2个不同时间长度内的地形变化进行了分析,结果表明:台州湾属于强潮海域,具有潮差大、潮汐动力强的特点;该海区在1988年以前处于略有淤积状态,而1988年后期处于冲淤基本平衡的稳定状况;椒江口内高含沙水体的往返运移对湾内水域冲淤变化的影响甚小;造成该海区海床变化的泥沙主要来自于浙江东海岸沿岸泥沙运动,随着来自长江口泥沙的逐年减少,该海域的海床形态基本趋于稳定,海域含沙量逐步降低,为台州市深水港的建设提供了良好的泥沙环境。
Based on the hydrological and sediment tests and the measured terrain data of Taizhou Bay waters in the past years and all the surveys, the terrain changes in two different time periods from 1934 to 1998 and from 1988 to 2003 in the sea area were analyzed. The results show that : The Taizhou Bay belonged to the strong tidal sea area with large tidal range and strong tidal power. The area was slightly silted before 1988 and stabilized at the basic balance of erosion and deposition in late 1988. The high sediment concentration in the Jiaojiang River estuary, The impact of the round-trip migration on the change of scouring and silting in the Bay is very small. The sediment that causes the change of the seabed in this area mainly comes from the sediment movement along the east coast of Zhejiang. As the sediment from the Yangtze Estuary declines year by year, Bed shape basically stabilized, sediment concentration gradually reduced, providing a good sediment environment for the construction of deep-water port in Taizhou.