软土地基中的蛋形消化池基础设计,通常采用大直径的钻孔灌注桩。本文所述大直径预应力混凝土管桩首次在蛋形消化池中成功应用的工程实例,表明该类桩型能减少工程造价、缩短施工周期、控制构筑物的沉降变形。本文主要论述了软土地基中蛋形消化池采用大直径预应力混凝土管桩设计时应注意的要点,为类似设计提供参考。 Egg-shaped digesters in soft ground Foundation design, usually with large diameter bored piles. The project examples of large diameter prestressed concrete pipe piles successfully used in egg-shaped digester for the first time show that this type of pile can reduce the project cost, shorten the construction period and control the settlement of structures. This paper mainly discusses the points that should be paid attention to when designing egg-shaped digester in soft soil foundation with large diameter prestressed concrete pipe pile, and provides reference for similar design.