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Deep Foundations: Design, Construction, and Quality Control

1.4 CEUs | Thursday–Friday, March 24–25

Instructors:

Great presentations from engineers who literally wrote the book! — Anthony Telesco, Geotechnical Engineer, Jacobs, Boston, MA

Purpose and background

Deep foundations are commonly used to support all types of infrastructure features in all types of site and geotechnical conditions. The purpose of this seminar is to present modern techniques for the design, installation, and verification of deep foundations. Over the past twenty-five years, major changes have occurred in the deep foundations industry. New improved methods have been developed for installing all types of deep foundations, increased loads are being used, new quality control procedures have been developed, and updated specifications are used. For driven piles, higher loads can be achieved with new hammers, dynamic quality control methods have been adopted, wave equation analysis is being widely used, and higher strength materials are becoming common. Auger-cast piles are being used with increasing frequency. High capacity drilled shafts are being utilized more frequently. New design methods and specifications have been adopted in many codes and specifications. The course instructors will present modern design and construction procedures for deep foundations including discussions on recent developments.

Seminar benefits

  • Find out the latest subsurface investigation methods for deep foundations design.
  • Understand the fundamentals of the design process for deep foundations.
  • Learn the new standards and procedures for the design and installation of deep foundations.
  • Learn the use of wave equation analysis as applied to both the design and installation of driven piles including driving problems.
  • Understand the various capacity determination methods including both static and dynamic methods.
  • Receive state-of-the-art design and construction manuals for all types of deep foundations systems.

Learning outcomes

This seminar addresses modern techniques for the design, installation, and verification of deep foundations. Throughout the last two decades, major changes; for example, LRFD and computer software, have occurred and are in routine practice in the deep foundations industry. New improved methods have been mainstreamed into practice for the design and installation of all types of deep foundations. Upon completion of this seminar, you will be able to:

  • Explain the minimum recommendations for site investigations, laboratory and insitu test methods, and property selection guidance for deep foundations design and construction.
  • Select the appropriate deep foundation systems and assess the appropriate foundation element installation equipment and construction procedure.
  • Conduct design and analysis of single piles and pile groups subject to axial and lateral loads and moments.
  • Apply the use of wave equation analysis for the design and installation of driven piles.
  • Understand and specify the use of static and dynamic testing and monitoring methods for structural integrity and geotechnical, load carrying capacity.
  • Select the key project variables and requirements within construction specifications and plans for deep foundations
  • Communicate the advantages and disadvantages of various deep foundation types.

Assessment of learning outcomes

  • Attainment of the learning outcomes will be addressed via in-class handouts and discussions of example problems and software demonstrations.
  • Frequent classroom question and answer discussions are encouraged at the conclusion of each presentation.

Special features

Via email, approximately 5 days prior to the seminar, each attendee will receive electronic PDF versions of the FHWA comprehensive manuals Design and Construction of Driven Pile Foundations, Drilled Shaft: Construction Procedure and Design Methods, and Design and Construction of Continuous Flight Auger Piles.

Who should attend?

Geotechnical engineers, structural engineers, construction engineers, contractors, owners, or any professional involved in the design, construction, inspection, testing, and specifications writing of deep foundations (driven piles, cast-in-place piles, or drilled shafts).

Seminar outline

Day 1 | Time: 8:30 a.m. – 4:30 p.m.

  • Welcome and introduction
  • Overview of deep foundations
  • Design and construction:
    • The design process will be reviewed for all types of deep foundations and the satisfaction of code requirements will be discussed.
  • Subsurface investigations for deep foundations:
    • Subsurface investigation methods
    • Evaluation of subsurface investigation methods
  • Computation of capacity and deformations:
    • Driven piles
    • Drilled shafts
  • Driven piles and pile installation equipment:
    • Driven pile types
    • Pile driving hammers including new hammers
    • Lead systems and accessories
  • Drilled shafts and Augercast piles installation:
    • -Methods of installation and influence of installation methods on deep foundations performance
  • Wave equation analysis of pile driving workshop:
    • Bearing graph and chart generation for inspectors
    • Driveability evaluations

Day 2 | Time: 8:30 a.m. – 4:30 p.m.

  • Design for lateral loading and pile groups
  • Computer software for deep foundations design and analysis
  • Quality control and assurance of deep foundations:
    • Methods of installation control
    • Techniques for evaluation of the installed end product
  • Conventional static loading tests:
    • Load testing methods
    • Evaluation of load tests
  • Dynamic testing for load bearing capacity and structural integrity:
    • High strain and low strain dynamic testing
    • Methods for evaluating dynamic measurements including case method and CAPWAP
    • Pile driving evaluation
    • Capacity and integrity evaluations of cast in place shafts and piles
  • Other testing methods:
    • Bottom-Up load testing
    • Rapid load testing
    • Methods & evaluation of results
  • Planning an effective field testing program
  • Summary and conclusions

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