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摘要：
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本文介绍了堆载预压法和真空联合堆载预压法在天津港南疆大桥桥台软基加固工程中的应用情况，结果表明这两种方法加固桥台地基有效地避免了桥台地基在后期使用过程中产生较大的沉降，但真空联合堆载预压法可以大大缩短加荷期，为今后桥台地基的加固积累了宝贵经验。
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This paper introduces the application of the vacuum preloading mehtod and the combination of vacuum preloading with surcharge preloading in the soft soil improvement works of the Nanjiang Bridge in Tianjin Port Practice shows using these two methods, a significant settlement occurred in the late service of the abutment was avoided In addition, that since using the combination of vacuum preloading with surcharge preloading, the duration of preloading was shortened,thus accumulating some valuable experience in soft soil improvement of the abutment for the future
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