ISBN-10:
0470404795
ISBN-13:
9780470404799
Pub. Date:
10/19/2009
Publisher:
Wiley
Helical Piles: A Practical Guide to Design and Installation / Edition 1

Helical Piles: A Practical Guide to Design and Installation / Edition 1

by Howard A. Perko

Hardcover

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Product Details

ISBN-13: 9780470404799
Publisher: Wiley
Publication date: 10/19/2009
Pages: 528
Sales rank: 682,056
Product dimensions: 7.60(w) x 9.30(h) x 1.30(d)

About the Author

Howard A. Perko, PhD, PE, has sixteen years of consulting engineering experience, is an instructor at Colorado State University, and the Director of Engineering for Magnum Geo Solutions, LLC. Dr. Perko has been active in the Helical Foundations and Tiebacks Committee of the Deep Foundations Institute since 2002, serving as its Chairman since 2008. He is also a member of the editorial advisory board for helicalpierworld.com.

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Table of Contents

Foreword.

Preface.

Acknowledgments.

Chapter 1 Introduction.

1.1 Basic Features.

1.2 Terminology.

1.3 Invention.

1.4 Early U.S. Patents.

1.5 Periods of Use.

1.6 Modern Applications.

1.7 Environmental Sustainability.

Chapter 2 Installation.

2.1 Equipment.

2.2 General Procedures.

2.3 Special Procedures.

2.4 Installation Safety.

2.5 Torque Measurement.

2.6 Torque Calibrations.

2.7 Field Inspection.

Chapter 3 Basic Geotechnics.

3.1 Subsurface Exploration.

3.2 Field Penetration Resistance.

3.3 Soil Classification.

3.4 Bedrock.

3.5 Site Suitability.

3.6 Shear Strength.

Chapter 4 Bearing Capacity.

4.1 Helix Spacing.

4.2 Individual Bearing Method.

4.3 Cylindrical Shear Method.

4.4 Limit State Analysis.

4.5 Shaft Adhesion.

4.6 LCPC Method.

4.7 Pile Deflection.

4.8 Simple Buckling.

4.9 Advanced Buckling.

4.10 Down Drag.

Chapter 5 Pullout Capacity.

5.1 Theoretical Capacity.

5.2 Minimum Embedment.

5.3 Effect of Groundwater.

5.4 Group Efficiency.

5.5 Structural Capacity.

5.6 Cyclic Loading.

Chapter 6 Capacity-to-Torque Ratio.

6.1 Early Empirical Work.

6.2 New Emperical Justification.

6.3 Energy Model.

6.4 Simple Shaft Friction Model.

6.5 Other Theoretical Methods.

6.6 Precautions.

6.7 Exploration with Helical Pile.

Chapter 7 Axial Load Testing.

7.1 Compression.

7.2 Tension.

7.3 Loading Procedures.

7.4 Interpretation of Results.

7.5 Other Interpretations.

Chapter 8 Reliability and Sizing.

8.1 Factor of Safety.

8.2 Helix Sizing.

8.3 Computer-Aided Sizing.

8.4 Statistics.

8.5 Field Adjustments.

8.6 Reliability.

Chapter 9 Expansive Soil Resistance.

9.1 Expansive Soils.

9.2 Foundations on Expansive Soils.

9.3 Active Zone.

9.4 Pile Design.

9.5 Early Refusal Condition.

Chapter 10 Lateral Load Resistance.

10.1 Rigid Pile Analysis.

10.2 Flexible Pile Analysis.

10.3 Pile Groups.

10.4 Effect of Helical Bearing Plates.

10.5 Effect of Couplings.

10.6 Lateral Load Tests.

10.7 Emperical Results.

10.8 Lateral Restraining Systems.

10.9 Seismic Resistance.

Chapter 11 Corrosion and Life Expectancy.

11.1 Corrosion Basics.

11.2 Galvanic Corrosion.

11.3 Zinc Coatings.

11.4 Passivity.

11.5 Powder Coating.

11.6 Design Life.

11.7 Sacrificial Anodes.

11.8 Special Topics.

Chapter 12 Foundation Systems.

12.1 Basic Foundation Plan.

12.2 Foundation Loads.

12.3 Pile Cap Design.

12.4 Manufactured Pile Caps.

12.5 Bridges and Boardwalks.

12.6 Concreteless Design.

12.7 Lateral Bracing.

Chapter 13 Earth Retention Systems.

13.1 Lateral Earth Pressure.

13.2 Retaining Walls.

13.3 Excavation Shoring.

13.4 Timber Lagging.

13.5 Helical Soil Nails.

13.6 Grading and Drainage.

13.7 Post-Tensioning.

13.8 Wall Repair.

Chapter 14 Underpinning Systems.

14.1 Foundation Repair.

14.2 Underpinning Brackets.

14.3 Rotational Bracing.

14.4 Floor Slab Support.

14.5 Braced Excavations.

Chapter 15 Economics.

15.1 Cost and Availability.

15.2 Foundation Economics.

15.3 Measurement and Payment.

Chapter 16 Proprietary Systems.

16.1 Grouting Systems.

16.2 Ground Anchors.

16.3 Special Helix Shapes.

16.4 Underpinning Systems.

16.5 Enhanced Lateral Resistance.

16.6 Composite Piles.

16.7 Special Couplings.

16.8 Future Development.

Chapter 17 Building Codes.

17.1 IBC 2006.

17.2 IBC 2009.

17.3 Product Evaluation Reports.

17.4 AC358 Criteria Development.

17.5 New Evaluation Criteria.

17.6 Forthcoming Codes.

Appendix A. Common Symbols and Abbreviations.

Appendix B. Summary of Prior Art.

Appendix C. Load Tests Results.

Appendix D. Nomenclature.

Glossary of Terms.

Bibliography.

Index.

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