Recycling method for pile foundation in soft soil area

The invention belongs to the technical field of pile foundation reutilization, and provides a soft soil area pile foundation reutilization method which comprises the steps that a complete original pile foundation is taken out in the mode that soft soil around the original pile foundation penetrates through the original pile foundation; the taken-out complete original pile foundation is placed in the quasi-construction position, and a gap between the original pile foundation and surrounding soil is poured through concrete; and after the concrete is solidified, the concrete and the original pile foundation form a whole, namely the quasi construction pile, and the process of recycling the original pile foundation to manufacture the quasi construction pile is completed. 本发明属于桩基础再利用技术领域，提供了一种软土地区桩基础再利用方法，其包括通过将原桩基础周围的软土贯穿的方式来取出完整的原桩基础；将取出的完整原桩基础置入准施工处，利用混凝土浇筑原桩基础与周围土的空隙；待混凝土凝固后与原桩基础形成一个整体，即为准施工桩，完成将原桩基础回收再利用制成准施工桩的过程。