真空—堆载联合预压法在软土地基处理中的应用研究

Application of Vacuum-Preloading Method in Soft Ground Treatment

通过现场测试试验,初步揭示真空—堆载联合预压引起的地基垂直和侧向变形机理,并分析孔隙水压力的消散规律。由于这种软土地基处理方式对于提高路基稳定性、加快工程施工、缩短施工工期、加快软土地基固结、减少工后沉降等方面有着良好的作用,因此对这次试验进行的分析总结有助于真空一堆载联合预压法在我国高速公路软土地基处理中的推广应用。

The paper preliminarily reveals the vertical and lateral deformation of ground induced by vacuum-preload treatment through field test experiment. Vacuum-preload treatment is effective to improve roadbed's stability, accelerate construction, speed up consolidation of soft ground and minimize post-construction settlement. The summary and analysis of the experiment will contribute to promote the application in soft ground treatment of China express way construction.