真空堆载预压加载速率对预压期沉降量的影响分析与探讨

Preloading Rate of Vacuum Loading on Preloading Period Analysis and Discussion of the Influence

以排水固结原理为基础的真空联合堆载预压法,作为加固深厚淤泥层的处理方法,在我国沿海软土地基加固施工中已得到广泛的应用,并取得了良好的工程效果。依据真空堆载预压施工现场监测的数据,从加载速率、孔隙水压力、分层沉降、深层土体水平位移监测几个方面,分析了加载速率对预压期沉降量以及工后沉降的影响。

Based on the theory of drainage consolidation,the vacuum & surcharge preloading method to reinforce deep silt layer,has been applied to construction of soft foundation reinforcement around coastal areas in China. According to the monitoring data at the construction site,this paper analyzed the influence of loading rate on the settlement in the pre-loading period and after construction in this passage,from several aspects like loading rate,pore water pressure,layering settlement and monitoring of deep soil horizontal displacement.