真空联合堆载预压法在人工岛地基处理中的应用

港珠澳大桥珠澳口岸人工岛西、北护岸及岛内区部分采用真空联合堆载预压法进行地基处理。真空预压法和堆载预压法整合使用，真空预压法产生的侧向收缩变形能有效消除堆载预压法产生的侧向挤压变形，起到保证地基处理过程中地基稳定作用；具有加快软土地基固结速度、有效提高施工效率、缩短施工期、保证地基处理效果、施工设备简单等优点。

Application of vacuum combined surcharge preloading method on the foundation treatment of artificial island

The vacuum combined surcharge preloading method is used for ground treatment in west and north revetment and some island areas of Zhuhai-Macao Port artificial island in the HZMB. Integrated use the vacuum preloading method and surcharge preloading method, the lateral contraction deformation produced by the vacuum preloading method can effectively elimi- nate the lateral extrusion produced by the surcharge preloading method, which can ensure stabilization of the foundation in ground treatment process, accelerate the soil soft consolidation, effectively improve the construction efficiency, shorten the construction period, ensure foundation treatment effects, and simple construction equipment.