我省黑龙港大部份地区,浅层地下水含水砂层薄,颗粒细,如果没有适宜的井型,单井出水量小,供不上机泵抽水要求。因此根椐各地不同的水文地质条件,因地制宜的选择适宜的井型结构,是当前开发浅层淡水,利用改造咸水,大力发展井灌井排,夺取农业丰收的一个技术关键。近年来,在抗旱中出现了一些新井型,各有其适应条件,为了适应当前各地发展浅井的迫切要求,我们对黑龙港地区现有几种主要井型结构及施工方法,进行初步汇总整理以供参考。一水泥砾石滤水管井由水泥砾石滤水管安装成的浅机井叫水泥砾石滤水管井(通称水泥管井)。一般适宜于透水性较好的古河道、全淡区或厚层淡水区。椐在衡水县北沼村附近试验,当地水 Most parts of our province, Heilongjiang, shallow groundwater aquifer sand thin, fine particles, if there is no suitable well type, single well water output is small, not for pump pumping requirements. Therefore, based on the different hydrogeological conditions and well-chosen well-type structure, it is a key technology for the current development of shallow fresh water, the utilization of saltwater reform, the vigorous development of well-well irrigation and drainage and the harvest of agriculture. In recent years, a number of new well types have appeared in drought resistance and each has its own adaptability. In order to meet the urgent requirements for the development of shallow wells in various places around the world, we have carried out a preliminary summary of several major well-type structures and construction methods in Heilonggang Region for reference. A cement gravel pipe well is a shallow well drilled by a cement gravel pipe called a cement gravel pipe well (commonly known as a cement pipe well). Generally suitable for better water permeability ancient river, all-light area or thick freshwater area.试 test in the vicinity of Kitamura village in Hengshui County, local water