港区超软吹填土层快速加固方案设计与优化

港区超软弱吹填土层快速加固技术是针对围海造陆工程中的超软吹填土层直接进行快速加固而无需晾晒硬化的一种技术处理措施,该技术可在短时间内一次性施加荷载而不会引起地基失稳,较传统真空预压法具有极大的工程优势。结合惠州荃湾港软基处理项目,根据经验设计初步确定设计参数,并对表层地基承载力进行预测,对设计参数进一步优化,对比分析3种排水板间距下软基加固的效果,结合工程造价、加固效果及设计安全储备等多方面因素,最终确定了最优设计参数。

Rapid reinforcement scheme design and optimization of super-soft fill soil in port area

The rapid reinforcement technology of super-soft fill soil in the port area is a technical treatment method for the rapid reinforcement of the super-soft fill soil in the reclamation project.The technique can be applied in a short time without destabilizing the foundation.Compared with traditional vacuum preloading method,it has great engineering advantages.Combined with the engineering example of soft foundation treatment project in Quanwan port area,we preliminarily determine the design parameters according to the experience,and predict the bearing capacity of foundation.By further optimizing the design parameters,we compare and analyze the effect of soft foundation reinforcement under three kinds of drainage plate spacing.The optimal design parameters are determined by combining engineering cost,reinforcement effect and design safety reserve.