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Ground Improvement Case-Histories by Cholachat Rujikiatkamjorn, Jian Chu, Buddhima Indraratna

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Chapter 17

Geotextile-Encased Columns

Case Studies over Twenty Years

Dimiter Alexiew1; Marc Raithel2    1 Civil and Geotechnical Engineering, Huesker Synthetic GmbH, Gescher, Germany2 Civil and Geotechnical Engineering, Kempfert & Partner Geotechnik, Würzburg, Germany

Abstract

The geotextile-encased columns (GEC) foundation system for embankments and dikes on soft soils was introduced some 20 years ago and is now considered state-of-the-art in Germany and more and more worldwide. GECs consist of compacted granular fill confined in a high-strength woven geotextile “cylinder” (encasement). A wide range of fills, including sand, can be used. They work well even in extremely soft soils. This chapter examines some case studies of projects that ...

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