在水利工程施工中，地下水处理是一个重要的环节。它直接关系到施工的进度、质量，甚至关系到施工的成败。大口井降低地下水的方法，具有易施工，经济、操作方便及效果好等优点，笔者根据自己的亲身经历，将简易大口井降低地下水的方法概述如下。l简易大口井的构造所谓简易，即 In water conservancy construction, groundwater treatment is an important part. It is directly related to the progress of construction, quality, and even related to the success of construction. Large wells to reduce groundwater methods, with easy construction, economy, ease of operation and good results, the author according to their own personal experience, the simple big mouth wells to reduce the groundwater is summarized as follows. Simple and easy construction of the mouth of the so-called simple, that is