The formulae for the press line of mud pipes are educed by establishing the differential equation for turbid water of perforated mud pipes.

• 本文通过建立穿孔排泥管泥水流的微分方程,导出排泥管内压力线公式,建立了排泥管开孔比与积泥均度的关系,为等间距布孔方法提供理论依据。