Geosynthetic Encased Columns for Soft Soil Improvement. (2018)

• Record Type: Book
• Further Information: Note: Márcio Almeida, Mario Riccio, Iman Hosseinpour, Dimiter Alexiew.
• Authors: Almeida, Marcio de Souza Soares de; Riccio, Mario; Hosseinpour, Iman; Alexiew, Dimiter
• Contents: 1 - Generalities ; 1.1. Introduction; 1.2. General principles; 1.3. Applications (Alexiew and Thompson, 2014); 1.4. Execution methods; 1.5. Material properties selection; 1.5.1. Soft soil; 1.5.2. Granular column material; 1.5.3. Geosynthetic encasement 2 - Design methods; 2.1. Overview; 2.2. Vertical design: “general principles”; 2.3. Vertical design: “analytical calculation”; 2.3.1. Equilibrium: “stresses and forces involved”; 2.3.2. Soil constrained modulus Eoed, s ; 2.3.3. Geosynthetic tensile force; 2.4. Vertical design: “consolidation analysis”; 2.5. Vertical design: “column layout”; 2.6. Alternative calculation methods; 2.7. Global stability: “plane strain analysis”; 2.8. Final comments; 2.8.1. Vertical and global designs; 2.8.2. Differential surface settlements; 2.8.3. Proposed steps for design 3 Pameters used in pre-design charts and calculation examples ; 3.1. Introduction; 3.2. Limit state design; 3.3. Material parameters; 3.4. Vertical design: “charts utilization”; 3.5. Calculation examples; 3.5.1. Example 1: Embankment over GECs - “vertical design”; 3.5.2. Example 2: Stability analysis of embankment on GECs - “global design”; 3.5.3. Example 3: Time dependent settlement 3.5.4. Example 4: Lateral thrust on piles 4 Instrumented embankment on GEC ; 4.1. Introduction; 4.2. Test Embankment at TKCSA, Itaguaí, Brazil, 2012; 4.2.1. Instrumentation and embankment construction 4.2.2. Vertical and horizontal deformations; 4.2.3. Vertical stresses below the embankment 4.2.4. Excess pore water pressure 4.2.5. Geotextile expansion (column bulging); 4.3. Other case studies; 4.3.1. Railroad embankment at Waltershof, 1995; 4.3.2. Extension of Airbus Site at "Mühlenberger Loch", Hamburg, 2000-2002; 4.3.3. Railroad Embankment Botnia Line, Sweden, 2001-2002 4.3.4. High-Speed Rail link Paris-Amsterdam, Westrick, Netherlands, 2002 4.3.5. Bastions Vijwal Houten, Netherlands, 2005; 4.3.6. Steel Plant TKCSA, Itaguaí, Brazil, 2006-2010; 4.4. Final remarks 5 Application of numerical analyses; 5.1. Introduction; 5.2. 2D axisymmetric analysis; 5.2.1. Settlement estimation; 5.2.2. Total vertical stresses; 5.2.3. Excess pore pressures; 5.2.4. Geotextile expansion (column bulging); 5.2.5. Influence of the columns spacing; 5.3. 2D plane strain analysis; 5.3.1. Model configuration; 5.3.2. Settlement estimation; 5.3.3. Soil horizontal displacement; 5.3.4. Excess pore pressures; 5.3.5. Total vertical stresses; 5.3.6. Stability analysis of embankment; 5.4. 3D strip analysis; 5.4.1. Settlements; 5.4.2. Total vertical stresses; 5.4.3. Soil horizontal displacement; 5.4.4. Tensile force in geogrid reinforcement; 5.5. Final remarks Annex I; Annex II; List of symbols
• Edition: 1st
• Publisher Details: CRC Press
• Publication Date: 2018
• Extent: 1 online resource (138 pages)
• Languages: English
• ISBNs: 9781351709460; 1351709461
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.