CAJ | 학술논문

本文采用MIKE21二维水动力模型模拟了南黄海辐射沙脊群海域的潮流形态，模拟结果与实测潮流基本一致。在此基础上，比较了三套不同围填海方案对工程附近区域的冲淤影响。从整体上看，三套方案都会对工程周边海域的海底冲淤产生明显影响。条子泥围填海工程后在其北部产生淤积，在东南部产生冲刷。东沙和高泥两座人工岛的建成使原本以弶港为中心扇形辐聚、辐散的潮流格局有所改变，潮流进出主要集中在西洋水道南端和黄沙洋水道西端这两条潮流通道，通道内流速增大，产生冲刷；而两人工岛东部和弶港东部海域产生淤积。基于目前的模拟结果，只建设高泥和东沙两座人工岛更有利于维持西洋水道和黄沙洋水道的畅通，对近岸港口资源具有保护作用。
본문채용MIKE21이유수동력모형모의료남황해복사사척군해역적조류형태，모의결과여실측조류기본일치。재차기출상，비교료삼투불동위전해방안대공정부근구역적충어영향。종정체상간，삼투방안도회대공정주변해역적해저충어산생명현영향。조자니위전해공정후재기북부산생어적，재동남부산생충쇄。동사화고니량좌인공도적건성사원본이강항위중심선형복취、복산적조류격국유소개변，조류진출주요집중재서양수도남단화황사양수도서단저량조조류통도，통도내류속증대，산생충쇄；이량인공도동부화강항동부해역산생어적。기우목전적모의결과，지건설고니화동사량좌인공도경유리우유지서양수도화황사양수도적창통，대근안항구자원구유보호작용。
In order to study the reclamation impact on sedimentary erosion and deposition by reclamation proj ects in the radial tidal sand ridge system in the South Yellow Sea,the two-dimensional hydrodynamic model,MIKE2 1 ,was applied to simulate the tidal currents,and erosion and deposition were calculated using empirical formula.Then the sediment erosions and depositions caused by different kinds of reclamation proj ects were calculated.Three cases of reclamation project were numerical tested.They were Tiaozini reclamation project(Case 1),Dongsha and Gaoni rec-lamation project(Case 2),and Case 3 was a combination of Case 1 and Case 2.All the three cases showed obvious impacts on the sedimentary erosion and deposition.In Case 1 ,sedimentary deposition occurred on the north of Tiaozini and erosion occurred on the south of it.In Case 2,the fan-shaped,Jianggang centered tidal current system was changed,and the tidal currents were constrained to the two water channels of Xiyang and Huangshayang,which induced velocity increasing and sedimentary erosion in the channels,while depositions occurred at the east of Dongsha and Gaoni.In Case 3,the erosion and deposition areas were similar to the combined impacts of the former cases.Based on the model results,Case 2 was the appropriate case for keeping the tidal channel unimpeded and protecting the harbor resources.