基于GIS的海南洋浦港洋浦深槽稳定性分析  

GIS-based analysis on stability of the Yangpu Deep Trough in the Yangpu Harbor Sea Area,Hainan Island,China

作　　者：左书华[1,2] 李蓓[1] 杨华[1] 

机构地区：[1]交通部天津水运工程科学研究所工程泥沙交通行业重点实验室,天津300456 [2]大连理工大学海岸和近海工程国家重点实验室,大连116024

出　　处：《水道港口》2010年第4期242-246,共5页Journal of Waterway and Harbor

摘　　要：结合地形实测资料，分析了1963—2003年洋浦港海域的地形冲淤变化，结果表明边坡和深槽淤涨速度小，基本处于稳定形势；分析讨论了影响深槽稳定的因素，从洋浦湾潮汐汊道地貌发育的长时间尺度来看已进入稳定阶段；该海域潮流、余流作用小，波浪较弱，泥沙来源少，含沙量低，不存在集中落淤现象；各区沉积速率在0．5—2．0cm／a，沉积速率低；稳定性理论判断认为整个洋浦湾潮汐汊道系统稳定性好。According to the topography,the terrain change was analyzed in this paper.The results show that the sedimentation rate of the slope and the deep trough is small from 1963 to 2003,and the slope and the deep trough are basically in a stable situation.The factors affecting the deep trough stability were also discussed.The Yangpu tidal inlet has entered a stage of stable phase from a longer time.In the sea area,the tidal current and the residual current are both small,the wave effect is weak, sediment sources are little ,the sediment concentration is low.The deposition rate is low from 0.5 cm/a to 2.0 cm/a.The tidal inlet system is stable according to the Yangpu stability theory.

关 键 词：动力条件 泥沙环境 岸滩演变 沉积速率 稳定性 洋浦港 

分 类 号：TV142[水利工程—水力学及河流动力学] P751[交通运输工程—港口、海岸及近海工程]