Design and Construction of Continuous Flight Auger Piles
In Design and Construction of Continuous Flight Auger Piles, you'll learn ...
- A step-by-step generalized method for the selection and design of CFA piles, including augered cast-in-place (ACIP) piles, drilled displacement (DD) piles, and screw piles
- Advantages and limitations of using CFA piles in transportation projects
- Details on construction techniques, materials, and recommended practice for the construction of CFA piles
- How advances in automated monitoring and recording devices have alleviated concerns about quality control associated with CFA piles
Continuous Flight Auger (CFA) piles are used to sustain the axial and lateral force from structures such as roadway embankments, bridge footings, and building foundations, to name a few.
CFA piles have been used in the U.S. commercial market for years but have not been used frequently for support of transportation structures in the United States. This underutilization of a viable technology is a result of perceived difficulties in quality control, and the difficulties associated with incorporating a rapidly developing (and often proprietary) technology into the traditional, prescriptive design-bid-build concept. Recent advances in automated monitoring and recording devices will alleviate concerns of quality control, as well as provide an essential tool for a performance-based contracting process.
This course provides descriptions of the basic mechanisms involving CFA piles, CFA pile types, applications for transportation projects, common materials, construction equipment, and procedures used in this technology. Recommendations are made for methods to estimate the static axial capacity of single piles. A thorough evaluation and comparison of various existing methods used in the United States and Europe is also presented. Group effects for axial capacity and settlement are discussed, as well as lateral load capacities for both single piles and pile groups. A generalized step-by-step method for the selection and design of CFA piles is presented and quality control (QC)/quality assurance (QA) procedures are discussed.
An Allowable Stress Design (ASD) procedure is presented in this course since resistance (strength reduction) factors have not yet been calibrated for CFA piles for a Load Resistance Factored Design (LRFD) approach. Several example problems will be discussed to aid the student in understanding the design requirements. The student will learn how to solve for side-shear strength, bearing capacity, reinforcement requirements, as well as solve other ancillary equations related to designing CFA piles.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- Description of CFA pile types and basic mechanisms.
- The typical diameters of CFA piles
- Factors that contribute to the trend of using CFA piles in private and commercial work more than in transportation work
- How to determine the bearing capacity of CFA piles
- How to determine pile group efficiency using AASHTO standards
- Applications for CFA piles in transportation projects
- How earthquakes may affect CFA piles
- Soils that favors CFA piles
- How to determine the SPT N value
- How to calculate the end-bearing resistance in cohesive soils
- The lowest allowable temperature when placing CFA piles
Certificate of Completion
You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 60 questions. PDH credits are not awarded until the course is completed and quiz is passed.
|This course is applicable to professional engineers in:|
|Alabama (P.E.)||Alaska (P.E.)||Arkansas (P.E.)|
|Delaware (P.E.)||Florida (P.E. Area of Practice)||Georgia (P.E.)|
|Idaho (P.E.)||Illinois (P.E.)||Illinois (S.E.)|
|Indiana (P.E.)||Iowa (P.E.)||Kansas (P.E.)|
|Kentucky (P.E.)||Maine (P.E.)||Maryland (P.E.)|
|Michigan (P.E.)||Minnesota (P.E.)||Mississippi (P.E.)|
|Missouri (P.E.)||Montana (P.E.)||Nebraska (P.E.)|
|Nevada (P.E.)||New Hampshire (P.E.)||New Jersey (P.E.)|
|New Mexico (P.E.)||New York (P.E.)||North Carolina (P.E.)|
|North Dakota (P.E.)||Ohio (P.E. Self-Paced)||Oklahoma (P.E.)|
|Oregon (P.E.)||Pennsylvania (P.E.)||South Carolina (P.E.)|
|South Dakota (P.E.)||Tennessee (P.E.)||Texas (P.E.)|
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|West Virginia (P.E.)||Wisconsin (P.E.)||Wyoming (P.E.)|