真空预压法处理软土地基的工程应用

Application of vacuum preloading method in consolidating soft soil foundation

摘要: 基于软基加固现场实测资料,通过工程实例分析了真空预压技术加固软土地基时地表沉降、深层沉降、水平位移、孔隙水压力和真空度的变化规律,验证和评价真空预压法的处理效果;同时,通过区域性对比试验,探讨了真空-堆载联合预压的结合时机问题,为类似工程提供借鉴和参考。

Abstract: Based on the field data of soft foundation reinforcement, the variation laws of soil surface settlements, stratified settlements, horizontal displacements, pore water pressures and vacuum degrees are analyzed by use of the vacuum preloading technique, the treatment effect of this method is verified. The design of the test area is carried out, and the time of the combination of vacuum and surcharge is discussed. The results may provide reference for similar projects.