先浅后深两次真空预压处理沿海超软土的应用研究

对于新近吹填淤泥形成的超软土地基,利用以往常规软基处理方法难以取得理想加固效果,或根本无法实施。为满足大面积吹填造陆的需要,工程上开发出"浅层处理+深层真空预压"方法处理超软土地基;该方法研究尚处起步阶段,存在较多问题。对此依托温州民科基地永兴园区围海工程进行现场试验,结合各种监测检测成果,对先浅后深两次真空预压法进行深入探讨;对丰富地基处理方法(尤其是针对超软土地基处理),提高超软土地基处理的设计水平以及指导工程施工具有重要的工程意义。

Application Study of deep and shallow combined with two times vacuum preloading for ultra soft clay

The conventional soft foundation treatment method is difficult to achieve the ideal reinforcement effect or can not be applied to the ultra softclay foundation formed by the newly filled silt. In order to meet the needs of a large area of land reclamation project, developed the "shallow layer treatment deep vacuum preloading method of ultra softclay foundation, the method of research is still in its infancy, there are many problems. This paper based on the Wenzhou China branch base in Yongxing Park reclamation project carries on the field test, with monitoring test results. The further exploration of the shallow to deep two vacuum preloading method, the rich foundation treatment methods (especially for ultra softclaytreatment), has important engineering significance to improve the design level of ultra softclay treatment and guide the engineering construction.