
Course:	NHI - Drilled Shafts
NHI Course Number:	132014
SAP Course Number:	78TECH400142

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Geotechnical and Foundations
Structural Design

Class Schedule

No Offerings Are Currently Scheduled

General Information

Summary:	Drilled shafts are an alternate type of deep foundation that may be more cost effective and perform better than other types of deep foundations in bridge piers at river crossings and in retrofit operations, high-mast lighting, earth retaining structures, single-column piers, and similar applications. This course provides participants with specific technical guidance on all aspects of designing, installing and monitoring the construction of drilled shafts. The lessons address the following topics: applications, advantages and disadvantages of drilled shafts for transportation structure foundations; general requirements for subsurface investigations; construction methods; construction case histories; construction specifications; principles of designing drilled shafts for axial and lateral loading; expansive soils, downdrag and similar effects; load testing; inspection; integrity testing; repair and retrofit of defective shafts; and cost estimation.
Learning Outcomes:	Upon completion of the course, participants will be able to: - Describe the various drilling rigs and tools that are available to construct drilled shafts under varied subsurface soil and rock conditions. - Recognize the basic features of drilling aids such as casings and drilling slurries, and the reasons for certain fundamental requirements for these aids. - Design drilled shafts for axial loading in simple soil and rock profiles. - Demonstrate a general understanding of the elements of designing drilled shafts for lateral loads. - Demonstrate an understanding of the need for load tests and available methods for performing the tests. - Formulate the basic elements of construction specifications for drilled shafts. - Demonstrate an understanding of integrity testing, repair, and retrofit of defective shafts. - Estimate costs for drilled shafts.
Target Audience:	Geotechnical engineers, bridge designers, and resident engineers. The course embraces both construction and design, and it is important that all participants attend all lessons, not just those in the immediate area of interest. A key issue is how the details of construction affect the way in which a drilled shaft should be designed and how the intent of the design affects inspection. Participants in the course are expected to have a degree in engineering for which they have passed an undergraduate course in soil mechanics and/or have successfully completed NHI Course 132012 - Soils and Foundations Workshop. The training level of this course is intermediate.

Final Exam:	Yes

Continuing Education Credits

National Highway Institute	CEHs	Classes After	CEUs	Classes After	PDHs	Classes After

NHI:			1.80	06/01/07

Awarding continuing education credits (PDH/CEU/CEH) to a training course or other training event does not imply or guarantee that the training course/event is approved by the Pennsylvania State Registration Board of Professional Engineers, Geologists and Land Surveyors. According to Pennsylvania Act 25, “Credit determination for activities…shall be the responsibility of the licensee. Continuing professional competency obtained by a licensee should maintain, improve or expand skills or knowledge obtained prior to initial licensure, including law and ethics applicable to the profession, or develop new and relevant skills and knowledge.”
For informational purposes only:	1 CEU is equal to 10 hours of instruction
	1 CEH is equal to 1 hour of instruction

Course Contact Information

For technical questions regarding this course, contact the following...
Name:	Virginia Lawson
Phone:	(717) 346-1375
Email:	vilawson@pa.gov
For general questions about the Training Calendar (such as those regarding schedules, locations, instructors or registrations), see Contact Information in specific classes.

Created	Last Modified
By Mary L Sharp/PennDOT On 05/11/04 At 07:56 AM	By Kate Kohan/PennDOT On 05/05/15 At 09:08 AM