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水井是我国北方地区农田灌溉設施之一,它具有水源可靠、数量多、分布广、費用省、效益大的特点。解放后,各地修建了很多水井工程,在历次抗旱斗爭中,起了很大的作用。近年来,部分水井由于年久失修、井口損坏、井台塌陷、淤塞等原因,不能继續使用;有的由于井淺,遇到苦旱时,地下水位下降,形成水源不足,不能滿足灌溉的需要。对这些水井,必需加以整修才能发揮作用。目前,正是整修水井的大好季节,特介紹一些修井的經驗,以供参考。
Water well is one of farmland irrigation facilities in northern China. It has the characteristics of reliable water source, large quantity, wide distribution, low cost and high benefit. After the liberation, many water well projects were built around the country and played a significant role in the previous drought-fighting struggles. In recent years, some wells can not continue to be used because of disrepair, damage to the wellhead, collapse of the well platform, silting and other reasons. In some cases, due to the shallow wells, when the water level is low, the groundwater level drops and water can not meet the requirements of irrigation need. These wells must be refitted to work. At present, it is an excellent season for repairing water wells, especially introducing some workover experience for reference.