Ground Improvement by Deep Vibratory Methods

• Main Authors: Kirsch, Klaus, Kirsch, Fabian
• Format: eBook Book
• Language: English
• Published: United States CRC Press 2016; Multiple Funders; CRC Press, Taylor & Francis Group; Taylor & Francis; Taylor & Francis Group
• Edition: 2
• Subjects: Agribusiness and primary industries; backfill; Civil; Civil engineering; Civil engineering, surveying and building; CivilEngineeringnetBASE; column; Column Group; columns; compaction; concrete; Construction; depth; Depth Vibrator; Economics, Finance, Business and Management; Engineering; ENGnetBASE; Fine Grained Cohesive Soils; Foundations; Foundations and Piling; Ground Improvement Method; Industry and industrial studies; Liquefaction Resistance; Magnitude Scaling Factor; material; Nonfiction; replacement; SCI-TECHnetBASE; Soil & Rock; Soil Behavior Type Index Ic; Soil Mechanics; Soil stabilization; STMnetBASE; stone; Stone Backfill; Stone Column; Stone Column Material; Stress Concentration Factor; Technology; Technology & Engineering; Technology, Engineering, Agriculture, Industrial processes; Trial Compaction; TU Berlin; Unit Cell Concept; Vibratory compacting; vibro; Vibro Compaction; Vibro Concrete Column; Vibro Flotation; Vibro Replacement; Vibro Replacement Stone Columns; Vibro Stone Columns; concrete; Soil Behavior Type Index; Column Group; columns; Cpt; Vibro Flotation; Stone Column; Depth Vibrator; Ground Improvement Method; Stress Concentration Factor; Vibro Compaction; Liquefaction Resistance; Cpt Tip Resistance; Vibro Replacement Stone Columns; Magnitude Scaling Factor; compaction; backfill; Vibro Concrete Column; Soil Behavior Type Index Ic; Stone Backfill; Stone Column Material; TU Berlin; Compaction Probe; column; Trial Compaction; stone; depth; material; Unit Cell Concept; Vibro Stone Columns; Vibro Replacement; Fine Grained Cohesive Soils; Improvement Factor; vibro; replacement

Vibro compaction and vibro stone columns are the two dynamic methods of soil improvement most commonly used worldwide. These methods have been developed over almost eighty years and are now of unrivalled importance as modern foundation measures. Vibro compaction works on granular soils by densificat...

Table of Contents:

• 6.3 Vibration nuisance and potential damages to adjacent structures -- 6.4 Carbon dioxide emission -- 7: Contractual matters -- References -- Index
• 4.3 Principal behavior of vibro stone columns under load and their design -- 4.3.1 Overview and definitions -- 4.3.2 Load-carrying mechanism and settlement estimation -- 4.3.3 Failure mechanism and bearing capacity calculations -- 4.3.4 Drainage, reduction of liquefaction potential, and improvement of earthquake resistance -- 4.3.5 Recommendations -- 4.4 Quality control and testing -- 4.5 Suitable soils and method limitations -- 4.6 Computational examples -- 4.6.1 Analysis of settlement reduction -- 4.6.2 Analysis of slope stability -- 4.6.3 Bearing capacity calculation of single footings on stone columns -- 4.6.4 Some results of a parametric study of stone column group behavior -- 4.7 Case histories -- 4.7.1 Wet vibro replacement stone columns for a thermal power plant -- 4.7.2 Vibro replacement soil improvement for a double track railway project -- 4.7.3 Vibro replacement foundation for the new international airport at Berlin -- 4.7.4 High replacement vibro stone columns for a port extension -- 4.7.5 Vibro stone columns for settlement control behind bridge abutments -- 4.7.6 Ground improvement for the foundation of a petroleum tank farm in the Middle East -- 4.7.7 Stone columns provide earthquake-resistant foundation for an electric power plant in Turkey -- 4.7.8 Seismic remediation of an earthfill dam by vibro stone columns -- 5: Method variations and related processes -- 5.1 General -- 5.2 Vibro concrete columns for foundations in very soft soils -- 5.2.1 Process description -- 5.2.2 Special equipment -- 5.2.3 Principal behavior and design -- 5.2.4 Quality control and testing -- 5.2.5 Suitable soils and method limitations -- 5.2.6 Case history: Foundation on vibro concrete columns in soft alluvial soils -- 6: Environmental considerations -- 6.1 General remarks -- 6.2 Noise emission
• Cover -- Half Title -- Title Page -- Copyright Page -- Table of Contents -- Preface to the Second Edition -- Preface and Acknowledgments to the First Edition -- Acknowledgments to the Second Edition -- Authors -- 1: An overview of deep soil improvement by vibratory methods -- 2: A history of vibratory deep compaction -- 2.1 The vibro flotation method and first applications before 1945 -- 2.2 Vibro compaction in postwar Germany during reconstruction -- 2.3 The Torpedo vibrator and the vibro replacement stone column method -- 2.4 Development of vibro compaction outside Germany -- 2.5 Method improvements -- 2.6 Design aspects -- 3: Vibro compaction of granular soils -- 3.1 The depth vibrator -- 3.2 Vibro compaction treatment technique -- 3.2.1 Compaction mechanism of granular soils -- 3.2.2 Vibro compaction in practice -- 3.3 Design principles -- 3.3.1 General remarks -- 3.3.2 Stability and settlement control -- 3.3.3 Mitigation of seismic risks -- 3.3.3.1 Evaluation of the liquefaction potential -- 3.3.3.2 Settlement estimation of sands due to earthquake shaking -- 3.4 Quality control and testing -- 3.5 Suitable soils and method limitations -- 3.6 Case histories -- 3.6.1 Vibro compaction for a land reclamation project -- 3.6.2 Ground improvement treatment by vibro compaction for new port facilities -- 3.6.3 Vibro compaction field trial in calcareous sand -- 3.6.4 Foundation of a fuel oil tank farm -- 3.6.5 Liquefaction evaluation of CPT data after vibro compaction and stone column treatment -- 3.6.6 Trial compaction in quartz sand to establish compaction probe spacing -- 3.6.7 Ground improvement works for the extension of a major shipyard in Singapore -- 4: Improvement of fine-grained and cohesive soils by vibro replacement stone columns -- 4.1 Vibro replacement stone column technique -- 4.2 Special equipment