沉井下沉与排水金忠贤，刘世湘，付代弟（省水利工程局工程一处）（黑龙江省电力设计院）［关键词］沉井，管井井点，下沉，排水１方案选择沉井多用于地下水位高且水量较丰富地区的水利基础调中．目前，沉井下沉分排水和不排水二种方法，由于不排水法需设备较复杂；费用又... Sinking and drainage caisson Jinzhong Xian, Liu Shixiang, Fu Dai generation (Provincial Water Conservancy Bureau engineering) [Key words] sinking, tube well point, sinking, Groundwater level is high and the water rich areas of the water transfer in tune. At present, subsidence of sunk well sub-drainage and non-drainage of two methods, due to non-drainage method required more complex equipment; cost and ...