地下水取水构筑物在海水取水中的应用

Utilization of Groundwater Intake Structure in Seawater

近年来,管井、渗渠和水平定向滤管等地下水取水构筑物因其显著的净化能力和环保性而受到海水利用工程尤其是海水淡化工程的重视,并在已有的海水取水工程中获得了越来越多的应用。鉴于我国目前应用地下水取水构筑物取集海水的工程还比较少,且相关文献报道也较为鲜见,从地下水取水构筑物取集海水的水文地质条件、构筑物形式和工程经济性等方面探讨了海滩井、海滩渗渠和水平定向滤管等取水方式的适用条件,并给出了部分工程实例,以期丰富现有海水取水形式,提高我国海水利用工程的技术水平和经济性。

In recent years, with the obvious advantages of purification and environment protection, some groundwater intake structures including vertical well, infiltration gallery and horizontal directional drilling have been attracted attention from seawater utilization projects, especially from seawater desalina- tion projects, and have been used in more and more seawater desalination plants. While, few groundwa- ter intakes for seawater have been adopted in China, and the relevant reports are also relatively rare. From the aspects of hydrogeological conditions, structure form and economic efficiency of collecting sea- water from groundwater structures, this＇paper discussed the suitable conditions of water intake methods, such as beach vertical well, beach seepage canal and horizontal directional filter pipe, and gave some project examples. The purpose of this paper is to enrich the existing forms of seawater intake and to im- prove the technical level and economy of seawater utilization projects in China.