真空联合堆载预压法在某新近吹填场地的应用研究

以天津滨海新区某新近吹填软土地基处理为工程背景，研究提出该工程真空联合堆载预压法的施工参数及工艺，通过现场试验和监测对真空联合堆载预压法加固前后土体的主要力学指标进行对比，分析了加固效果。结果表明:真空联合堆载预压法适用于该场地土体条件，取得了良好的加固效果，较好地解决了真空预压法引起地基沉降量较大的问题。

Study on Application of Vacuum-surcharge Preloading on a New Site of Hydraulic Reclamation

Taking the soft soil foundation treatment by recent hydraulic reclamation in Binhai New Area, Tianjin as the background, herein through study the construction parameters and technologies of vacuum-surcharge preloading in this project were proposed; and then with on-site tests and monitoring, the main mechanical indices of soil mass before and after reinforced by means of vacuum-surcharge preloading were compared, and the reinforcement effect was analyzed. The result shows that vacuum-surcharge preloading is applicable to the soil mass in this site, thus obtains good reinforcement effect. This works may solve the large ground subsidence caused by vacuum-surcharge preloading.