Retaining Wall Design and Slope Stabilization Techniques
Agenda
Registration: 8:00 – 8:30 am
Morning Session: 8:30 am – 12:15 pm
Lunch (On your own): 12:15 – 1:15 pm
Afternoon Session: 1:15 – 5:00 pm
Types of Retaining Walls
Traditional cantilevered retaining walls
• Reinforced concrete walls
• Reinforced concrete masonry walls
• Soldier pile and lagging walls
• Sheet pile
Traditional timber walls
Traditional gravity walls
Counterfort and buttress
Reinforced soil retaining walls/reinforced slopes
Anchored retaining walls (tie-backs, soil nailing, etc.)
Prefabricated modular – bin walls (metal, concrete), crib walls, gabion walls
Others – cellular, slurry, secant, tangent
Permanent vs. temporary retaining walls
Private-sector vs. highway retaining wall systems
Cost of retaining walls
Retaining Wall Design – Part I
Soil design parameters and backfill
Lateral earth pressure
Factors of safety
External stability
• Sliding
• Overturning
• Bearing capacity
• Settlement
• Scour
Retaining Wall Design – Part II
Internal stability
Global stability
Special considerations for tiered retaining walls
Groundwater
Service life
Design software
Slope Stabilization
Science of slope stability
Surficial vs. deep-seated slope stability
Long term vs. short term stability
Slope stabilization techniques
• Regrading
• Excavation and replacement
• Slope reinforcement/pinning
• Ground improvement
• Retaining structures
Monitoring options
Retaining Wall and Slope Stabilization Case Histories
Various commercial, residential projects
Various highway and institutional projects
Credits
Architects
7.0 HSW PDHs
7.0 AIA HSW Learning Units
Landscape Architects
7.0 HSW PDHs
7.0 LACES HSW PDHs
Professional Engineers
7.0 HSW PDHs
Alaska Contractors –
Residential Endorsement
8.0 CEUs
Continuing Education Credit Information
This seminar is open to the public and offers 7.0 HSW PDHs (contact hours) to architects, landscape architects, and engineers in most states, including Alaska. Educators and courses are not subject to preapproval in Alaska.
This course is approved by the American Institute of Architects Continuing Education System for 7.0 HSW Learning Units (Sponsor No. J885) and the Landscape Architect Continuing Education System for 7.0 HSW PDHs.
HalfMoon Education is an approved continuing education sponsor for architects in Florida and is deemed an approved sponsor in New York. HalfMoon Education is an approved continuing education sponsor for engineers in Florida, Louisiana, Maryland, New Jersey, New York (NYSED Sponsor No. 35), North Carolina, and North Dakota.
The Alaska Department of Commerce, Community, and Economic Development has approved this course for 8.0 CEUs for Alaska Contractors – Residential Endorsement Holders.
Attendance will be monitored, and attendance certificates will be available after the seminar for most individuals who complete the entire event. Attendance certificates not available at the seminar will be mailed to participants within fifteen business days.
Speakers
Steven Halcomb, P.E., G.E.
Devise EngineeringMr. Halcomb has over 16 years of geotechnical earthquake engineering experience in Alaska and throughout the US. He is Principal Geotechnical Engineer with Devise Engineering in Anchorage, Alaska. Mr. Halcomb regularly oversees geotechnical efforts on projects ranging from several hundred thousand to multi-million dollars in various environments including the arctic, subarctic, and marine. He has experience in shallow and deep foundation design, retaining walls, slope stability, pavements, excavations, and regularly aids during construction and performs various inspections. Mr. Halcomb has worked in ideal and adverse conditions including liquefiable and expansive soils and frozen ground requiring extensive thermal modeling. He is a member of the American Society of Civil Engineers and the Geo-Institute. Mr. Halcomb earned his B.S., M.C.E., M.S. in Arctic Engineering, and an Earthquake graduate certificate all from the University of Alaska Anchorage.
