真空堆载预压处理软基效果的室内试验研究

对苏嘉抗高速公路吴松江大桥桥头软基真空堆载预压处理前后的土样进行了室内试验研究，经插板前、插板后及真空堆载预压处理后的土性指标的对比分析，得出了合理的试验结论，即土的物理性质指标分别得到不同程度的降低，强度指标也得到很大的提高。并通过比较加固处理前后的土性参数，对真空堆载预压处理的效果作了综合评价。

Experimental study on effect of treatment of soft foundation with vacuum-surcharge preloading

An experimental study is performed on the project of soft foundation treatment for the end of the Wusongjiang Bridge of the Sujiahang Express Highway, mainly including the determination of soil parameters such as the water content, void ratio and so on. By analysis of the test results in the three different periods during the construction, the effect of treatment with vacuum surcharge preloading is examined,the soil parameters are decreased in different levels,and parameters of soil strength are increased.Thereofore,the outcomes of the study are of important significance to design and construction of the project.