1:给水管采用双层PE管;电熔 焊接或对接焊接;排水管采用钢筋混凝土管,石棉水泥接口。2:给水管管顶覆土厚度不小于0.7米;排水管起点覆土厚度不小于0.5米,车行道下不小于0.7米。3:排管道敷设坡度应不小于下值; DN=200 i=0.006,DN=250 i=0.004,DN=300 i=0.003,DN=400 i=0.002,DN=500 i=0.0012.雨水:采用混凝土管,水泥沙浆接口,采用管顶平接,其坡度设置为:DN=200 i=0.006,DN=300 i=0.004, DN=400 i=0.003,DN=500 i=0.0025.