中文摘要：

为研究砂质含水层中海水入侵问题,确定海水入侵过程中含水介质内海水入侵楔形体的发展演化过程,本文采用砂槽实验模拟海水入侵,利用高密度电阻率探针观测系统远程实时监测海水入侵过程中土体的垂向电阻率变化,据电阻率变化曲线分析海水入侵发生发展过程。研究结果表明：高密度电阻率探针对海水入侵界面变化反应灵敏,能够监测到咸淡水突变界面形成、过渡带演化及咸淡水界面变迁等一系列现象,较好地实时监测海水入侵发生发展过程及海水入侵状态并进行预警。

英文摘要：

This paper aims to study the seawater intrusion problems in the sandy aquifer, and determine the devel opment and evolution of saltwaterwedge in the aqueous medium through the seawater intrusion process. It simulates seawater intrusion process in the soil bin, using the highdensity resistivity probe observing system to remote and re altime monitor the vertical resistivity changes of the soil through the seawater intrusion process. It determines the development of the seawater intrusion by analyzing the resistivity data. The result shows that the highdensity resis tivity probe is good at monitoring the occurrence and development of seawater intrusion. The formation of the salt fresh mutation interface, the evolution of the transition zone and the change of saltfresh water interface are moni tored. The highdensity resistivity probe is sensitive to the change of seawater interface. It is useful to realtime mo nitor and prewarning the seawater intrusion.