Recommendations for Design and Analysis of Earth Structures using Geosynthetic Reinforcements – EBGEO

The design and execution of earth structure using geosynthetic reinforcements is based on DIN 1054, 2005 edition, the European execution standard EN 14475 (reinforced fill) and ZTV E–StB, 2009 edition, with the associated terms of delivery, and the Geosynthetics Fact Sheet. Continuing on from the first edition in 1997 these EBGEO Recommendation employ the partial safety factor concept.
In addition to analysis and verification fundamentals and the demands placed on construction materials (ground, geosynthetics) several sections deal with the various applications:Embackments on soft soils,Reinforced foundation pads,Transport routes,Retaining structures,Landfill engineering –reinforcement of surface–parallel stratified systems,Reinforced earth structures over point or linear bearing elements,Foundation systems using geotextile–encased columns,Overbridging systems in areas prone to subsidence,Dynamic actions on geosynthetic–reinforced systems.
Examples are provided to clarify the Recommendations.
With the publication of these EBGEO Recommendations the German Geotechnical Society’s (Deutsche Gesellschaft für Geotechnik e. V. (DGGT)) Working Group AK 5.2 ‘Analysis and Dimensioning of Soil Structures using Geosynthetic Reinforcements’ supports construction practitioners in the design and analysis of geosynthetic–reinforced earth structures. The Recommendations are therefore regarded as ‘best structures’ and as supplementing standards.

Spis treści:
Preface to the English edition VIII
Notes for the User XXI
1. Introduction to the Recommendations and their Application Principles 1
1.1 National and International Regulations 1
1.2 Types of Analysis and Limit States using the Partial Safety Factor Approach 2
1.3 Examples of Reinforced Earth Structures 7
1.4 General Definitions 8
2. Demands on Materials 9
2.1 Soil 9
2.2 Geosynthethics 11
2.3 Bibliography 32
3. Analysis Principles 35
3.1 General Principles 35
3.2 Allocation of Geosynthetic–reinforced Structures to Geotechnical Categories 37
3.3 Design Resistances 38
3.4 Partial Safety Factors – Supplementary Regulations to DIN 1054 40
4. Embankments on Soft Solis 43
4.1 General Recommendations 43
4.2 Analysing Global Failure 44
4.3 Analysing the Stability of the Ground against ‘Squeezing Out’ 51
4.4 Analysing Bearing Capacity 52
4.5 Engineering Notes 53
4.6 Bibliography 53
4.7 Example Embankment on Soft Soil 53
5 Reinforced Foundation Pads 71
5.1 Definitions 71
5.2 Application and Modus Operandi 71
5.3 Design and Engineering Notes 71
5.4 Actions and Resistances 73
5.5 Analysing the Reinforced Foundation Pad 73
5.6 Analysis and Design 74
5.7 Notes on Execution 81
5.8 Bibliography 81
5.9 Example of a Reinforced Foundation Pad
6 Transport Routes 91
6.1 General Recommendations 91
6.2 Trafficked Areas with Non–stabilised Pavement and Large Allowable Deformations 92
6.3 Trafficked Areas in Railways Engineering 94
6.4 Installation and Emplacement Notes 95
6.5 Bibliography 95
7 Retaining Structures 97
7.1 Definitions 97
7.2 Design Notes 98
7.3 Analysis Principles 98
7.4 Analyses in the Ultimate Limit State (ULS) 103
7.5 Serviceability Limit State (SLS) Analyses 107
7.6 Facing Analyses 112
7.7 Bibliography 116
7.8 Retaining Structure Design Example 118
8 Landfill Engineering – Reinforcement of Surface–parallel Stratified Systems 131
8.1 General Recommendations 131
8.2 Design and Engineering Notes 132
8.3 Analyses 133
8.4 Bibliography 141
8.5 Example of Landfill Capping using Geosynthetic Reinforcement 142
9 Reinforced Earth Structures over Point or Linear Bearing Elements 151
9.1 Defini tions 151
9.2 Applications and Modus Operandi 153
9.3 Design and Engineering Recommendations 155
9.4 Actions and Resistances 157
9.5 Point and Linear Bearing Elements 158
9.6 Analysing the Reinforced Earth Structure 158
9.7 Analyses and Design 174
9.8 Notes on Execution 177
9.9 Bibliography 178
9.10 Design Example: Reinforced Earth Structures over Point or Linear Bearing Elements 180
10. Foundation Systems using Geosynthetic–encased Columns 201
10.1 Definitions 201
10.2 Modus Operandi and Applications 203
10.3 Manufacturing Methods 206
10.4 Design Recommendations and Engineering Notes 209
10.5 Building Materials 210
10.6 Notes on Analysis and Design 210
10.7 Inspection Criteria, Tolerances and Quality Assurance 220
10.8 Bibliography 222
10.9 Worked Example: Geotextile–encased Columns 222
11 Overbridging Systems in Areas Prone to Subsidence 227
11.1 General Recommendations 227
11.2 Design 228
11.3 Analyses 239
11.4 Applying the Observational Method 253
11.5 Notes on Execution 254
11.6 Bibliography 255
11.7 Worked Analysis Example 1 256
11.8 Worked Analysis Example 2 261
12 Dynamic Actions on Geosynthetic–reinforced Systems 267
12.1 General Recommendations 267
12.2 Dynamic Actions 267
12.3 Dynamic Effects 269
12.4 Resistances 269
12.5 Dynamic Design Cases 269
12.6 Dynamic Action – Live Loads 272
12.7 Determining the Dynamic Effects on the Geosynthetics 278
12.8 Determining the Resistances for Dynamic Actions 279
12.9 Demands on Building Materials under Dynamic Loads 281
12.10 Bibliography 285
12.11 Diagrams 288
13. Figures 307
14. Tables 313
Advertising List 315 

Nota biograficzna:
Working Group 5.2 ′Analysis and Dimensioning of Soil Structures using Geosynthetic Reinforcements′ forms part of the Technical Group ′Synthetics in Geotechnical Engineering′ ; of the Deutsche Gesellschaft fur Geotechnik e.V. (DGGT). It comprises approximately 30 specialists gathered from science, industry, and building–related agencies and employers. They meet and work on a voluntary basis.

Okładka tylna:
The design and execution of earth structure using geosynthetic reinforcements is based on DIN 1054, 2005 edition, the European execution standard EN 14475 (reinforced fill) and ZTV E–StB, 2009 edition, with the associated terms of delivery, and the Geosynthetics Fact Sheet. Continuing on from the first edition in 1997 these EBGEO Recommendation employ the partial safety factor concept.
In addition to analysis and verification fundamentals and the demands placed on construction materials (ground, geosynthetics) several sections deal with the various applications:Embackments on soft soils,Reinforced foundation pads,Transport routes,Retaining structures,Landfill engineering –reinforcement of surface–parallel stratified systems,Reinforced earth structures over point or linear bearing elements,Foundation systems using geotextile–encased columns,Overbridging systems in areas prone to subsidence,Dynamic actions on geosynthetic–reinforced systems.
Examples are provided to clarify the Recommendations.
With the publication of these EBGEO Recommendations the German Geotechnical Society’s (Deutsche Gesellschaft für Geotechnik e. V. (DGGT)) Working Group AK 5.2 ‘Analysis and Dimensioning of Soil Structures using Geosynthetic Reinforcements’ supports construction practitioners in the design and analysis of geosynthetic–reinforced earth structures. The Recommendations are therefore regarded as ‘best structures’ and as supplementing standards.