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55 Slides available anytime
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Retaining Wall and Slope Design Considerations

 
Earth retaining structures are engineered to retain a soil and/or rock mass adjacent to an area, building or structure, and are commonly used to accommodate changes in grade and provide a right-of-way. There are several types of retaining structures ranging from gravity retaining walls that rely on their weight to resist lateral pressures to anchored/tieback walls that rely on ground anchors for stability. Mechanically stabilized earth (MSE) walls have gained wide acceptance in highway, commercial and residential construction because of their relatively low cost, efficiency in construction, flexibility in civil design, and aesthetic appeal. These walls are gravity-type retaining walls that rely on a metal- or geosynthetic-reinforced earth mass for stability. The Federal Highway Administration estimates that more than half of all retaining walls constructed every year for transportation applications in the United States are MSE walls with precast facing, and designers of MSE walls continue to push the design envelope in terms of wall height, length of the reinforced zone, and quality of backfill soils. The popularity of this wall system has generated several management and review challenges for owners and approving agencies, as an increasing number of MSE wall systems are being marketed by specialized consultants and/or contractors instead of being designed by a project designer/structural engineer as is typically the case.

Learning Objectives:
•You will be able to review planning aspects related to the selection of earth-retaining structure types.
•You will be able to discuss design and construction considerations related to loads acting on earth-retaining structures, including water and seismic loads, and generally accepted good construction practices.
•You will be able to review performance assessment and failures of earth retaining structures, including their performance during earthquakes.
•You will be able to discuss MSE walls.

Faculty

Juan F. Perri, Ph.D., P.E.

Juan F. Perri, Ph.D., P.E.

Exponent

Agenda

Faculty

Juan F. Perri, Ph.D., P.E.

Juan F. Perri, Ph.D., P.E.

Exponent

  • Managing engineer at Exponent Failure Analysis Associates’ Oakland, California office
  • Practice includes soil mechanics, geotechnical engineering, foundation engineering and earthquake engineering, including foundations and earth retaining structures, dams, levees and basins, landslides and slope stability, and site characterization
  • Writer of several publications related to monitoring and repairs of slope failures, seepage, erosion and stability evaluations of levees, selection and characterization of seismic ground motions, piled foundations and soft soils
  • Ph.D. degree in ocean engineering, civil and environmental engineering, University of California, Berkeley; M.S. degree in civil and environmental engineering, University of California, Berkeley; M.S. degree in ocean engineering, University of California, Berkeley; M.S. degree in civil engineering, Politecnico di Torino, Italy; B.S. degree in civil Engineering, Politecnico di Torino, Italy
  • Can be contacted at [email protected]

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