硇洲岛海水入侵数值模拟

通过对硇洲岛地质和水文地质条件的综合分析,建立了本研究区三维地下水数值模型,并获取了相关含水层参数。从而建立海水入侵数值模型,对硇洲岛在不同开采条件下的海水入侵趋势进行了模拟预测,结果表明,减少开采量能减缓硇洲岛海水入侵;在满足当地供水需求的前提下,减少浅层水开采量,在远离沿海区域的中部地区适当增加中层水开采量的开采方案优于现状开采条件下的方案。本研究也为减缓海水入侵提供了相关科学依据。

NUMERICAL SIMULATION OF SEAWATER INTRUSION IN NAOZHOU ISLAND

Through the comprehensive analysis of geological and hydrogeological conditions of the NaoZhou island,we have established the three-dimensional numerical model of groundwater and obtained the aquifer parameters in the study area.The trend of seawater intrusion of the NaoZhou island under different mining conditions have been simulated and predicted through the seawater intrusion numerical model.The results showed that reducing production could slow down the seawater intrusion of the NaoZhou island;and on the premise of meet the demand of the local water supply,the solution scheme that reduces shallow water production,and increases the middle water production appropriately which is away from the central part of the coastal ar-eas,is superior to the present situation of mining conditions.This study also provided related scientific basis for slowing down seawater intrusion.