摘要
码头工程施工期对海洋环境的影响主要表现为悬浮泥沙的影响。悬浮泥沙主要由基槽开挖、块石抛填和港池疏浚产生,同时受项目所在地水文条件影响。悬浮泥沙会对浮游生物、海洋渔业资源、养殖生产和资源保护区等产生不利影响。以山东LNG项目码头工程为例,运用ECOMSED模型数值模拟泥沙的三维扩散运动,得出了在大潮期和小潮期基槽开挖、块石抛填和港池疏浚悬浮泥沙的最大影响范围,分析了悬浮泥沙对海洋生态的影响,并提出减少危害海洋生态的工程措施。
The wharf construction has a major impact on the marine environment due to the presence of suspended sediments,which are mainly generated by the foundation trench excavation,rock riprap and basin dredging,and are also subjected to the hydrological conditions at the project site. Suspended sediments have adverse effects on plankton,marine fishery,and aquaculture and conservation zones. Taking the wharf project of Shandong LNG terminal as an example,the paper simulated the sediments' three-dimensional diffusion by using ECOMSED model and determined the range of maximum impacts due to the foundation trench excavation,rock riprap and harbor basin dredging during the spring tide and neap tide. The paper analyzes the impact of suspended sediments on the marine ecology and it also presents some engineering measures to reduce the harms to marine ecology.
出处
《石油化工安全环保技术》
CAS
2015年第3期42-46,7,共5页
Petrochemical Safety and Environmental Protection Technology
关键词
码头工程
施工期
悬浮泥沙
海洋生态
Wharf engineering
Construction period
Suspended sediments
Marine ecology
