The geosynthetic encased column (GEC) is a relatively recent method developed for soft soil improvement. The method was firstly introduced as a concept in the 1980s and first practical applications started in the 1990s. GECs have been widely used in some parts of the world for the last three decades. However, there is no book in the literature summarizing the knowledge accumulated during this period in relation to this soft ground improvement technique. The purpose of this book is to provide readers with the GEC fundamentals and practical applications. Chapter 1 presents the general principles of this ground improvement technique including the methods used for GEC installation and how the material properties may be selected. Chapter 2 presents the design methods, thus settlement calculations by means of analytical methods and stability calculations by limit equilibrium methods are explained in detail. Chapter 3 presents calculation examples illustrating the usual steps to be done for both service limit state and ultimate limit state designs. Then field performances exemplifying practical applications of the GEC technique are presented in Chapter 4 for some case histories. Following numerical analyses, often used in design to complement analytical methods, are presented in Chapter 5. Annexes I and II at the end contain the charts developed to perform settlement calculations. The book combines the experiences of four authors with different academic and industry backgrounds to describe GEC design and performance. It is aimed at civil engineers in general, particularly geotechnical engineers, either working in design or in practice, at graduate students, and at senior undergraduate students.

practically oriented reference volume on soft soil engineering contains case studies of soft soil techniques from all over the world New Techniques on Soft Soils covers a wide range of updated techniques related to site investigation, vertical drains, surcharge, piled embankment, granular piles, deep mixing, monitoring and performance. An essential reference for designers and practitioners involved in soft soil construction, it provides a comprehensive view of current experiences and opinions of researchers and professionals from different parts of the world involving site investigation, design and construction on soft clays. This book presents a collection of selected expert contributions on innovations in soft soil engineering, that were presented at the Symposium on New Techniques for Design and Construction in Soft Clays held in Guaruja, Brazil, on 22 and 23 May 2010.

The geosynthetic encased column (GEC) is a relatively recent method developed for soft soil improvement. The method was firstly introduced as a concept in the 1980s and first practical applications started in the 1990s. GECs have been widely used in some parts of the world for the last three decades. However, there is no book in the literature summarizing the knowledge accumulated during this period in relation to this soft ground improvement technique. The purpose of this book is to provide readers with the GEC fundamentals and practical applications. Chapter 1 presents the general principles of this ground improvement technique including the methods used for GEC installation and how the material properties may be selected. Chapter 2 presents the design methods, thus settlement calculations by means of analytical methods and stability calculations by limit equilibrium methods are explained in detail. Chapter 3 presents calculation examples illustrating the usual steps to be done for both service limit state and ultimate limit state designs. Then field performances exemplifying practical applications of the GEC technique are presented in Chapter 4 for some case histories. Following numerical analyses, often used in design to complement analytical methods, are presented in Chapter 5. Annexes I and II at the end contain the charts developed to perform settlement calculations. The book combines the experiences of four authors with different academic and industry backgrounds to describe GEC design and performance. It is aimed at civil engineers in general, particularly geotechnical engineers, either working in design or in practice, at graduate students, and at senior undergraduate students.

• practically oriented reference volume on soft soil engineering
• contains case studies of soft soil techniques from all over the world

New Techniques on Soft Soils covers a wide range of updated techniques on several topics, such as site investigation, vertical drains, surcharge, piled embankment, granular piles, deep mixing, monitoring and performance. An essential reference for designers and practitioners involved in soft soil construction, it provides a comprehensive view of current experiences and opinions of researchers and professionals from different parts of the world involving site investigation, design and construction on soft clays.

This book presents a collection of selected expert contributions on innovations in soft soil engineering, that were presented at the Symposium on New Techniques for Design and Construction in Soft Clays held in GuarujA, Brazil, between 22 and 23 May 2010.