桩基是解决软土地基承载力低、沉降大的一种常用基础形式。桩基工程选用桩型多是排土桩,在宁波沉管桩应用尤为广泛。排土桩挤入土层并排开桩位土体,不仅增添拟建场地的总体量,而且激化孔隙水压力。其自动平衡是通过土体位移和自密实来实现的。位移土体不仅对构、建筑物,而且对地下埋设的 Pile foundation is a commonly used basic form to solve the problem of low bearing capacity and large settlement of soft soil foundation. The pile type used in pile foundation engineering is mostly pile-discharging piles, and it is particularly widely used in immersed pipe piles in Ningbo. Extruding soil piles into the soil and draining the piles of soil not only adds to the overall volume of the proposed site, but also stimulates the pore water pressure. Its automatic balance is achieved through soil displacement and self-compacting. Displaced soil not only against structures, buildings, but also underground