Informationen zum Autor J. Patrick Powers is a consultant with Mueser Rutledge Consulting Engineers in New York, New York. Arthur B. Corwin is President of Moretrench in Rockaway, New Jersey. Paul C. Schmall is Vice President and Chief Engineer of Moretrench. Walter E. Kaeck is a Senior Associate with Mueser Rutledge Consulting Engineers. Klappentext The most up-to-date guide to construction dewatering and groundwater controlIn the past dozen years, the methods of analyzing and treating groundwater conditions have vastly improved. The Third Edition of Construction Dewatering and Groundwater Control, reflecting the most current technology and practices, is a timely and much-needed overview of this rapidly changing field.Illustrated with hundreds of new figures and photographs and including numerous detailed case histories, the Third Edition of Construction Dewatering and Groundwater Control is a comprehensive and valuable reference for both students and practicing engineers alike.Drawing on real-world experience, the authors lead the reader through all facets of the theory and practice of this fascinating and often complex engineering discipline. Discussion includes:Dozens of case histories demonstrating various groundwater control practices and lessons learned in groundwater control and work performedDetailed methods of controlling groundwater by use of conventional dewatering methods aswell as vertical barrier, grouted cutoff, and frozen ground techniquesContracting practices and conflict resolution methods that will help minimize disputesAlternatives and effective practices for handling and treating contaminated groundwaterInnovations in equipment and materials that improve the performance and efficiency of groundwater control systemsPractices and procedures for success in artificial rechargeGroundwater modeling to simulate and plan dewatering projectsInclusion of dual U.S. customary and metric units throughoutConstruction Dewatering and Groundwater Control is an indispensable tool for all engineering and construction professionals searching for the most up-to-date coverage of groundwater control for various purposes, the modern ways to identify and analyze site-specific situations, and the modern tools available to control them. Zusammenfassung The most up-to-date guide to construction dewatering and groundwater controlIn the past dozen years, the methods of analyzing and treating groundwater conditions have vastly improved. The Third Edition of Construction Dewatering and Groundwater Control, reflecting the most current technology and practices, is a timely and much-needed overview of this rapidly changing field.Illustrated with hundreds of new figures and photographs and including numerous detailed case histories, the Third Edition of Construction Dewatering and Groundwater Control is a comprehensive and valuable reference for both students and practicing engineers alike.Drawing on real-world experience, the authors lead the reader through all facets of the theory and practice of this fascinating and often complex engineering discipline. Discussion includes:Dozens of case histories demonstrating various groundwater control practices and lessons learned in groundwater control and work performedDetailed methods of controlling groundwater by use of conventional dewatering methods aswell as vertical barrier, grouted cutoff, and frozen ground techniquesContracting practices and conflict resolution methods that will help minimize disputesAlternatives and effective practices for handling and treating contaminated groundwaterInnovations in equipment and materials that improve the performance and efficiency of groundwater control systemsPractices and procedures for success in artificial rechargeGroundwater modeling to simulate and plan dewatering projectsInclusion of dual U.S. customary and metric units thr...

Klappentext

The most up-to-date guide to construction dewatering and groundwater control In the past dozen years, the methods of analyzing and treating groundwater conditions have vastly improved. The Third Edition of Construction Dewatering and Groundwater Control, reflecting the most current technology and practices, is a timely and much-needed overview of this rapidly changing field. Illustrated with hundreds of new figures and photographs and including numerous detailed case histories, the Third Edition of Construction Dewatering and Groundwater Control is a comprehensive and valuable reference for both students and practicing engineers alike. Drawing on real-world experience, the authors lead the reader through all facets of the theory and practice of this fascinating and often complex engineering discipline. Discussion includes: * Dozens of case histories demonstrating various groundwater control practices and lessons learned in groundwater control and work performed * Detailed methods of controlling groundwater by use of conventional dewatering methods aswell as vertical barrier, grouted cutoff, and frozen ground techniques * Contracting practices and conflict resolution methods that will help minimize disputes * Alternatives and effective practices for handling and treating contaminated groundwater * Innovations in equipment and materials that improve the performance and efficiency of groundwater control systems * Practices and procedures for success in artificial recharge * Groundwater modeling to simulate and plan dewatering projects * Inclusion of dual U.S. customary and metric units throughout Construction Dewatering and Groundwater Control is an indispensable tool for all engineering and construction professionals searching for the most up-to-date coverage of groundwater control for various purposes, the modern ways to identify and analyze site-specific situations, and the modern tools available to control them.

Inhalt

Preface to the Third Edition xiii

About the Authors xv

Acknowledgements xvii

Part One: Theory 1

1 Groundwater in Construction 3

1.1 Groundwater in the Hydrologic Cycle 3

1.2 Origins of Dewatering 6

1.3 Development of Modern Dewatering Technology 6

2 The Geology of Soils 10

2.1 Geologic Time Frame 11

2.2 Formation of Soils 11

2.3 Mineral Composition of Soils 11

2.4 Rivers 12

2.5 Lakes 12

2.6 Estuaries 14

2.7 Beaches 14

2.8 Wind Deposits 14

2.9 Glaciers-The Pleistocene Epoch 14

2.10 Rock 16

2.11 Limestone and Coral 17

2.12 Tectonic Movements 19

2.13 Man-made Ground 19

3 Soils and Water 22

3.1 Soil Structure 22

3.2 Gradation of Soils 22

3.3 Porosity, Void Ratio, and Water Content 26

3.4 Relative Density, Specific Gravity, and Unit Weight 26

3.5 Capillarity and Unsaturated Flow 27

3.6 Specific Yield and Specific Retention 27

3.7 Hydraulic Conductivity 29

3.8 Plasticity and Cohesion of Silts and Clays 35

3.9 Unified Soil Classification System (ASTM D-2487) 35

3.10 Soil Descriptions 39

3.11 Visual and Manual Classification of Soils 40

3.12 Seepage Forces and Soil Stress 42

3.13 Gravity Drainage of Granular Soils 43

3.14 Drainage of Fine-grained Soils: Pore Pressure Control 44

3.15 Settlement as a Result of Dewatering 46

3.16 Preconsolidation 48

3.17 Other Side Effects of Dewatering 50

4 Hydrology of the Ideal Aquifer 52

4.1 Definition of the Ideal Aquifer 52

4.2 Transmissivity T 53

4.3 Storage Coefficient C s and Specific Yield 53

4.4 Pumping from a Confined Aquifer 55

4.5 Recovery Calculations 56

4.6 The Unconfined or Water Table Aquifer 57

4.7 Specific Capacity 58

5 Characteristics of Natural Aquifers 61

5.1 Anisotropy: Stratified Soils 61

5.2 Horizontal Variability 64

5.3 Recharge Boundaries: Radius of Influence R 0 64

5.4 Barrier Boundaries 65

5.5 Delayed Release from Storage 65

6 Dewatering Design Using Analytical Methods 66

6.1 Radial Flow to a Well in a Confined Aquifer 66

6.2 Radial Flow to a Well in a Water Table Aquifer 68

6.3 Radial…