一、前言堆载予压加固软土地基是目前工程中广泛使用且行之有效的方法,但因用料多、工程量大、加固时间长、单价高等原因,故各国相继考虑采用其他予压方法,真空予压法是被考虑的主要方法之一。天津新港扩建工程有大量仓库货场建造在软土上,对大面积软土进行加固,予压荷重是个难题,在新港地区还存在着料源不足、进料困难、运输不便等尖锐矛盾,直接影响到整个 I. Introduction Prestressed pile foundation is a widely used and effective method in the current project. However, due to the use of materials, large amount of work, long time for reinforcement and high unit price, various countries have successively considered adopting other pre-stressing methods Vacuum preloading is one of the main methods considered. Tianjin Xingang expansion project a large number of warehouse freight yard built on soft soil, the reinforcement of large areas of soft soil, to the pressure load is a problem, there are still lack of material in Xingang area, feeding difficulties, inconvenient transportation inconvenience sharp contradiction, a direct impact To the whole