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前言国际地下水协会于1969年出版了美国威廉、维·卡尔(william·v·karr)所著的“地下水一提取及设计方法”一书。该书介绍了提取地下水的各种方法,着重介绍的是辐射井。该井的钢筋混凝土井筒用沉井法
Foreword In 1969, the International Groundwater Association published the book “The Groundwater Extraction and Design Methodology” by William V. Karr of the United States. The book describes various methods for extracting groundwater, focusing on radiation wells. Well for sinking wells in reinforced concrete wells