Summary: | This updated course (January 2012) replaces NHI training 132037 Shallow Foundations, which was developed in 2001. Designed in accordance with the AASHTO Bridge LRFD Specification, 5th Ed., 2010, the course describes basic principles and state-of-the-practice analysis, load and resistance factor design (LRFD) procedures, and construction procedures for shallow foundations in soil and rock with particular application to transportation facilities.
The main topics covered are LRFD procedures for spread footings, vertical stress distribution, tolerable settlement criteria, settlement criteria in coarse-grained soils, settlement in fine-grained soils, time rate of consolidation settlement in fine-grained soils, bearing resistance in soil and rock, sliding resistance in soil and rock, problematic soils and ground improvement techniques, and inspection and construction monitoring methods for spread footings. Group exercises are interspersed throughout the course, enabling participants to be actively involved in the learning experience. This course provides FHWA recommended technical guidance in accordance with standard of practice for design and construction of spread footings for LRFD.
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Learning Outcomes: | Upon completion of the course, participants will be able to:
•· List the key steps in the design of spread footings
•· Identify common significant construction points for an abutment footing
•· Compute settlement of spread footings at service limit states
•· Use the bearing capacity equation to evaluate the nominal bearing resistance of spread footings at strength limit state
•· Recognize the impact of each parameter on the calculated bearing resistance
•· Estimate nominal bearing resistance for spread footings on rock
•· List the ground improvement techniques that may be used to improve problematic soils
•· Identify key geotechnical construction activities as they relate to spread footings
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Target Audience: | This course is intended for geotechnical professionals, foundation designers, highway/bridge engineers, and project engineers who are involved in the analysis, design, construction, and maintenance of spread footings for surface transportation facilities. The target audience may also include FHWA, State, and local highway agency employees, college and university faculty, and consultant engineers/geologists who are or will be involved in the research, design, construction and maintenance of spread footings/shallow foundations.
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Final Exam: | Yes |
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