镇江市地下水特征及规划应急水源地分析

Groundwater Characteristics and its Emergency Water Source in Zhenjiang

长江是镇江市主要的供水水源地,一旦长江发生突发性污染事件,全市的供水必将受到严重影响。因此,在城市总体规划中,需要进行应急水源地规划。分析了镇江市的地质条件及水文地质特征,在区内主要有8个地下水富水地带以及众多地表水库。从中选取了4个地下水及3个地表水库作为规划应急水源地,并对镇江市的非长江水源的应急供水能力进行了分析。最后讨论了地下水开发可能引起的环境问题,以及主要环境地质问题的防御措施,确保镇江市生态市建设的顺利进行。

The Yangzi River is the main water supply source in Zhenjiang,Jiangsu Province.Once a sudden pollution accident happens,the water supply would be affected seriously.Therefore,it is necessary to do emergency water supply planning.In this paper,the geological and hydrogeological characteristics in Zhenjiang are analyzed.There are eight groundwater-rich zones and many surface reservoirs in this area.Among them,four groundwater-rich zones and three surface reservoirs are selected as water supply spots and their capacity for emergent water supply is evaluated.Finally,to make sure a sustainable development of the Zhenjiang City,the environmental problems that might be caused by groundwater development and measures to protect geological environment are discussed.