随着桥梁加固技术的不断发展,微型桩在旧桥基础加固中的应用也越来越多。本文简要对微型桩的设计构造、施工方法做一介绍,并以某大桥基础的加固为例,说明微型桩不仅在土建工程中能发挥效用,在桥梁基础加固中也大有作为。 With the continuous development of the bridge reinforcement technology, the application of the mini-pile in the reinforcement of the old bridge foundation is also more and more. This paper briefly introduces the design and construction methods of micro-piles, and takes the reinforcement of a certain bridge as an example. It shows that the micro-piles not only can be used in civil engineering, but also plays an important role in the reinforcement of the bridge foundation.