冲蚀型大陆岛地下水数值模拟研究——以东海岛为例  

Numerical Model of Groundwater in Continental Islands: Case Study

作　　者：滕建标[1] 刘蕴芳[1] 周雯[1] 李国敏[2] 卢耀东 

机构地区：[1]环境保护部华南环境科学研究所,广州510655 [2]中国科学院地质与地球物理研究所,北京100029 [3]广东省水文地质一大队,广东湛江524049

出　　处：《环境影响评价》2015年第1期59-63,共5页Environmental Impact Assessment

摘　　要：东海岛是一座具有独特水文地质条件的大陆岛,浅层含水层与大陆以浅海湾相隔,中深层承压水含水层与大陆地下水系水力联系密切。东海岛浅层地下水流场基本保持天然状态,中深层水由于湛江市区地下水超采形成降落漏斗,地下水由南向北径流。针对东海岛水文地质特点,将其模型概化成7层,并利用东海岛连续三年的地下水观测孔数据对模型进行识别验证。验证结果表明,模型模拟结果较好地符合东海岛实际的地下水流场。Donghai Island is a continental island with special hydro-geological conditions, where the shallow aquifer is scparaled from themainland aquifer by a shallow gulf, and the middle-deep confined aquifers are closely linked to the mainland aquifers. General speaking,the shallow groundwater flow field maintains its natural state, hut the middle-deep aquifers have formed a funnel due to the ovcrexph,itationof groundwater in Zhanjiang City, with water flowing from south to north. The paper divided the groundwater numerical model for DonghaiIsland into 7 layers based on the hydro-geological features of the island, and validated it with three consecutive years of groundwaterobservation data. The validation results showed thai the model fitted well with the actual flow fieht of Donghai lshmd.

关 键 词：大陆岛 湛江东海岛 地下水流场 地下水数值模拟 

分 类 号：P641[天文地球—地质矿产勘探]