南水北调与水利科技2017，Vol.15Issue(6)：122-131,10.DOI:10.13476/j.cnki.nsbdqk.2017.06.018
填海工程背景下半岛地下水流场及污染物运移的数值模拟
Numerical simulations of peninsula groundwater flow and contaminant transport in different scenarios of land reclamation
摘要
Abstract
Using the numerical model GMS,in this paper we analyzed the impacts of three reclamation scenarios on groundwater flow field and contaminant transport in the Gulei Peninsula.The three designated reclamation scenarios were sand reclamation (Scenario 1),clay-+-sand reclamation (Scenario 2),and clay reclamation (Scenario 3).The results showed that (1) There was a regional increase of water table up to 4.78 m after reclamation.The extent of increase from small to large was as follows:Scenario 1,Scenario 2,and Scenario 3.(2) The groundwater flow field difference between different scenarios was the most prominent in the clay regior.The maximum difference of water table between Scenario 2 and Scenario 1 was 4.44 m,and that between Scenario 3 and Scenario 1 was 8.20 m.(3) When only the physical interaction was considered,the horizontal contaminant transport was more prominent than the vertical transport in all the three scenarios.(4) Compared with the case of Scenarios 1 and 2,which had basically the same contaminant transport intensity,for the predicted duration of 30a,the contaminant transport area and speed in Scenario 3 respectively decreased by 23.07％ and 18.89 ％ in the horizontal direction;in the vertical direction,the contaminant mainly accumulated in the first layer.The concentration of contaminants in the first layer in Scenario 3 was 5.87 times of that in Scenario 1 (or Scenario 2).This indicates that reclamation with low-permeability clay have a certain retardation effect on contaminant transport.关键词
填海工程/地下水流场/污染物运移/GMS/古雷半岛Key words
land reclamation/groundwater flow field/contaminant transport/GMS/the Gulei Peninsula分类
资源环境引用本文复制引用
陈煌,张征,娄华君,梁康,娄俊鹏..填海工程背景下半岛地下水流场及污染物运移的数值模拟[J].南水北调与水利科技,2017,15(6):122-131,10.基金项目
中国科学院战略性先导科技专项(A类)(XDA13010303).Strategic Priority Research Program of the Chinese Academy of Sciences (Class A) (XDA13010303) （A类）
