Evaluation of ground improvement by groups of vibro stone columns using field measurements and numerical analysis

被引：0

作者：

Kirsch, F. ^{[1
]}

机构：

[1] GuD Geotech & Dynam GmbH, Berlin, Germany

来源：

GEOTECHNICS OF SOFT SOILS: FOCUS ON GROUND IMPROVEMENT | 2009年

关键词：

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Vibro stone columns are widely used to improve the load-settlement characteristics of soft soils either as an infinite pattern under wide spread loading or as a column group beneath shallow foundations. The design is usually based on analytical and semi-empirical procedures. The results of field measurements of the stress and stiffness modification due to the vibro stone column installation are presented. Additionally the results of extensively instrumented load tests on groups of columns are presented. These results were used to calibrate a true 3-D numerical model, which is further on used to examine various parameters such as area ratio and improvement factor, influence of column length and end bearing situation, load distribution amongst the columns, influence of plate stiffness and vault formation in distributing layers.

引用

页码：241 / +

页数：2