This article briefly introduces contemporary highway soft foundation treatment methods,and mainly describes the mechanism,superiority,construction method and quality control of power-spray pile in reinforcing soft foundation.Practice proves that： powder-spray pile effectively solves soft foundation treatment difficulties,which is worth promoting.%简要的介绍了目前公路软基处理的方法,着重阐明了粉喷桩加固软土地基的作用机理、优越性及施工方法、质量控制,实践证明：粉喷桩有效解决了软基处理的难题,值得推广应用。
展开▼
