真空联合堆载预压处理深厚软土效果分析  

Analysis on Effect of Deep Soft Soil by Jointed Vacuum- Preloading Treatment Method

作　　者：李开正 

机构地区：[1]苏交科集团股份有限公司,南京市210019

出　　处：《北方交通》2016年第4期88-91,共4页Northern Communications

摘　　要：结合连云港徐圩港区内一条道路采取的地基处理方案,分析真空联合堆载预压对含吹填土的深厚软土处理效果,通过沉降观测、固结度计算,以及十字板剪切试验、荷载试验、室内土工试验等分析,发现处理后地基产生了较大的固结沉降,土体的含水率降低、孔隙比减小、压缩模量增大、强度提高,处理效果良好。In combination with foundation treatment scheme adopted for a road in Xuxugang District of Lianyungang, the treatment effect of deep soft soil with dredger fill by adopting jointed vacuum - preloading treatment method is analyzed. Through adopting analyses like settlement observation, calculation of degree of consolidation, vane shear test, load test, indoor soil test and so on, we discover that the foundation has a large consolidation settlement after treatment,the moisture content of soil mass reduces, void ratio decreases, modulus of compression increases, the strength improves and the treatment effect is good.

关 键 词：真空联合堆载预压 吹填土 深厚软土 固结度 沉降 

分 类 号：TU471.8[建筑科学—结构工程]