天津市海水入侵调查研究

The investigation of seawater intrusion in Tianjin

海水入侵是一种由人类经济活动和自然环境变化共同引发的地质灾害。本文以天津市2018-2022年海水入侵监测数据为基础,运用矿化度、氯离子浓度等指标作为判别方法,调研本市海水入侵现状。结果表明,有2个监测站位为严重入侵,地下水水质为咸水;2个站位为入侵,水质为微咸水;1个站位为无入侵,水质为淡水。通过计算,2021年海水入侵距离最大。最后,本文根据天津市沿海地区的特点,针对性地提出了海水入侵的治理措施。

Seawater intrusion is a geological disaster caused by human economic activities and natural environmental changes.Based on the monitoring data of seawater intrusion in Tianjin from 2018 to 2022,this paper investigates the current situation of seawater intrusion in Tianjin by using the discrimination methods of chlorides and mineralizing degree.The results showed that two monitoring stations were seriously invaded,and the groundwater quality was salt water.Two stations were invaded,and the water quality was brackish one was non-invasive and the water quality was freshwater.After calculation,the year with the largest seawater intrusion distance is 2021.Finally,according to the characteristics of Tianjin's coastal areas,this paper puts forward the control measures for seawater intrusion.