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Shallow Foundations

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Shallow Foundations: Discussions and Problem Solving is written for civil engineers and all civil engineering students taking cour... Weiterlesen
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Beschreibung

Shallow Foundations: Discussions and Problem Solving is written for civil engineers and all civil engineering students taking courses in soil mechanics and geotechnical engineering. It covers the analysis, design and application of shallow foundations, with a primary focus on the interface between the structural elements and underlying soil. Topics such as site investigation, foundation contact pressure and settlement, vertical stresses in soils due to foundation loads, settlements, and bearing capacity are all fully covered, and a chapter is devoted to the structural design of different types of shallow foundations. It provides essential data for the design of shallow foundations under normal circumstances, considering both the American (ACI) and the European (EN) Standard Building Code Requirements, with each chapter being a concise discussion of critical and practical aspects. Applications are highlighted through solving a relatively large number of realistic problems. A total of 180 problems, all with full solutions, consolidate understanding of the fundamental principles and illustrate the design and application of shallow foundations.



Tharwat M. Baban is a retired Professor of Civil Engineering at the University of Salahaddin, Erbil, Iraq. He has a B.Sc. (Hon) degree from the University of Baghdad and an M.S. Degree in Geotechnical Engineering from California State University at Berkeley. Baban taught undergraduate and graduate classes on a range of civil engineering topics, especially soil mechanics and geotechnical engineering and was geotechnical consultant to the Department of Soil Investigation at the governmental Hawlair (Erbil) Construction Laboratory.



Autorentext

Tharwat M. Baban is a retired Professor of Civil Engineering at the University of Salahaddin, Erbil, Iraq. He has a B.Sc. (Hon) degree from the University of Baghdad and an M.S. Degree in Geotechnical Engineering from California State University at Berkeley. Baban taught undergraduate and graduate classes on a range of civil engineering topics, especially soil mechanics and geotechnical engineering and was geotechnical consultant to the Department of Soil Investigation at the governmental Hawlair (Erbil) Construction Laboratory.



Klappentext

Shallow foundations transfer building loads to the earth near to the surface. Usually made of reinforced concrete, they provide strong, economical, durable and easy to build foundations, although their use is restricted to areas where the underlying soil is capable of adequately supporting the load.

Shallow Foundations: Discussions and Problem Solving
is written for civil engineers and all civil engineering students taking courses in soil mechanics and geotechnical engineering. It covers the analysis, design and application of shallow foundations, with a primary focus on the interface between the structural elements and underlying soil. Topics such as site investigation, foundation contact pressure and settlement, vertical stresses in soils due to foundation loads, settlements, and bearing capacity are all fully covered, and a chapter is devoted to the structural design of different types of shallow foundations. It provides essential data for the design of shallow foundations under normal circumstances, considering both US and Eurocode standards, with each chapter being a concise discussion of critical and practical aspects. Applications are highlighted through solving a relatively large number of realistic problems, with a total of 180 problems, all with full solutions, consolidating understanding of the fundamental principles and illustrating the design and application of shallow foundations.



Zusammenfassung

Shallow Foundations: Discussions and Problem Solving is written for civil engineers and all civil engineering students taking courses in soil mechanics and geotechnical engineering. It covers the analysis, design and application of shallow foundations, with a primary focus on the interface between the structural elements and underlying soil. Topics such as site investigation, foundation contact pressure and settlement, vertical stresses in soils due to foundation loads, settlements, and bearing capacity are all fully covered, and a chapter is devoted to the structural design of different types of shallow foundations. It provides essential data for the design of shallow foundations under normal circumstances, considering both the American (ACI) and the European (EN) Standard Building Code Requirements, with each chapter being a concise discussion of critical and practical aspects. Applications are highlighted through solving a relatively large number of realistic problems. A total of 180 problems, all with full solutions, consolidate understanding of the fundamental principles and illustrate the design and application of shallow foundations.



Inhalt

Preface x

Acknowledgements xiii

1 Site Investigation in Relation to Analysis and Design of Foundations 1

1.1 General 1

1.2 Site Investigation 2

1.2.1 Reconnaissance 2

1.2.2 Subsurface Exploration 3

1.2.3 Laboratory Tests 4

1.2.4 Compiling Information 6

1.2.5 Final Geotechnical Report 7

Problem Solving 8

References 73

2 Shallow Foundations Introductory Chapter 76

2.1 General 76

2.2 Types of Shallow Foundations 77

2.3 Depth of Foundations 82

2.4 Foundation Performance Requirements 84

2.4.1 General 84

2.4.2 Strength Requirements 85

2.4.3 Serviceability Requirements 86

2.4.4 Constructibility Requirements 86

2.4.5 Economy Requirements 87

2.5 Sulfate and Organic Acid Attack on Concrete 87

2.5.1 Sulfate Attack 87

2.5.2 Organic Acid Attack 88

2.6 Pressures under Foundations 89

2.6.1 Contact Pressure and Contact Settlement 89

2.6.2 Contact Pressure under Eccentrically Loaded Spread Footings 92

2.7 Vertical Stresses in a Soil Mass due to Foundation Loads 95

2.7.1 General 95

2.7.2 Vertical Stress Due to a Concentrated Load 95

2.7.3 Vertical Stress Due to a Line Load 96

2.7.4 Vertical Stress Due to a Uniformly Loaded Strip Area 97

2.7.5 Vertical Stress Due to a Uniformly Loaded Circular Area 97

2.7.6 Vertical Stress Due to a Uniformly Loaded Rectangular Footing 99

2.7.7 Newmark's Chart Method of Determining Vertical Stresses 104

2.7.8 Pressure Bulbs Method of Determining Vertical Stresses 105

2.7.9 Average Vertical Stress Due to a Loaded Rectangular Area 107

2.7.10 Westergaard's Equations 109

Problem Solving 111

References 143

3 Shallow Foundations Settlement 144

3.1 General 144

3.2 Immediate Settlement 149

3.3 Settlement of Foundations on Coarse-grained Soils 155

3.3.1 General 155

3.3.2 Estimation of Settlements from SPT 157

3.3.3 Estimation of Settlements from CPT 161

3.4 Settlement of Foundations on Fine-grained Soils 164

3.4.1 General 164

3.4.2 Immediate Settlement of Fine-grained Soils 166

3.4.3 Consolidation Settlement 168

3.4.4 Estimation of the Rate of Consolidation Settlement 174

3.4.5 Method of Accelerating the Rate of Consolidation Settlement 175

3.4.6 Estimation of Settlements over the Construction Period 180

3.4.7 Secondary Compression 181

3.5 Settlement of Foundations on Rock 183

Problem Solving 187

References 262

4 Shallow Foundations Bearing Capacity 265

4.1 General 265

4.2 Basic Definitions 266

4.3 Gross and Net Foundation Pressures 268

4.4 Bearing Capacity Failure Mechanism for Long (Strip or Continuous) Footings 272

4.5 Bearing Capacity Equations 273

4.6 Some Considerations Concerning the Use of Bearing Capacity Equations 278

4.7 Bearing Capacity of Footings with Inclined Loads 280

4.8 Bearing Capacity of Footings with Eccentric Loads 281

4.9 Effect of Water Table on Bearing Capacity 286

4.10 Influence of Soil Compressibility on Bearing Capacity 290

4.11 Effect of Adjacent Footings on Bearing Capacity 291

4.12 Bearing Capacity of Foundations on Slopes 292

4.12.1 General 292

4.12.2 Solutions 292

4.13 Bearing Capacity of Footings on Layered Soils 296

4.13.1 General 296

4.13.2 Ultimate Bearing Capacity: Stronger Soil Underlain by Weaker Soil 298

4.13.3 Ultimate Bearing Capacity: Weaker Soil Underlain by Stronger Soil 302

4.14 Safety Factor 304

4.15 Bearing Capacity from Results of In Situ Tests 305

4.16 Uplift Capacity of Shallow Foundations 306

4.17 Some Comments and Considerations Concerning the Geot...

Produktinformationen

Titel: Shallow Foundations
Untertitel: Discussions and Problem Solving
Autor:
EAN: 9781119056126
ISBN: 978-1-119-05612-6
Digitaler Kopierschutz: Adobe-DRM
Format: E-Book (pdf)
Herausgeber: Wiley-Blackwell
Genre: Bau- und Umwelttechnik
Anzahl Seiten: 752
Veröffentlichung: 12.04.2016
Jahr: 2016
Untertitel: Englisch
Dateigrösse: 24.5 MB