View Important Policies and System Requirements for this course
Interested in registering 5 or more engineers for a course? Contact us for information and rates.
INSTRUCTORS:
Jenna Stein
Kyle Rollins
Jackson Gil-Hernandez
Michael Haas
Brian Garrett
Course Length: 1 hour
Purpose and Background
These presentations were recorded at the Geo-Congress 2026.
Chloride Corrosion and Earth Retaining Systems: Novel Measurement and Calibration Techniques to Track Chloride Movement in Soils (12 minutes)
This presentation examines the impact of chloride-induced corrosion on earth retaining systems, which is a critical durability concern in geotechnical and transportation infrastructure. It highlights how chlorides migrate through soils and reach embedded steel components, accelerating corrosion processes. Traditional monitoring methods often fail to capture real-time chloride movement, prompting the need for improved measurement techniques. The presentation introduces novel sensing and calibration approaches that allow engineers to track chloride transport more accurately. These methods enhance the understanding of long-term deterioration mechanisms in retaining systems. Case examples demonstrate how improved monitoring can inform maintenance and design decisions. Ultimately, the research supports more resilient and durable infrastructure systems.
Large-Scale Testing to Evaluate Lightweight Cellular Concrete Backfill behind MSE and Cantilever Walls (20 minutes)
This presentation focuses on the use of lightweight cellular concrete (LCC) as backfill material behind mechanically stabilized earth (MSE) and cantilever retaining walls. LCC offers advantages such as reduced unit weight and improved constructability compared to traditional backfill materials. The study presents results from large-scale testing to evaluate its performance under real-world loading conditions. Parameters such as deformation, load distribution, and wall pressures are analyzed. Findings demonstrate how LCC can reduce lateral earth pressures and improve overall wall performance. The research also highlights considerations for design and implementation. These insights support the broader adoption of LCC in geotechnical applications.
Incidence of partial failures in a retention system composed of anchored piles using a finite element model (13 minutes)
This presentation investigates the causes and mechanisms of partial failures in anchored pile retaining systems. Using finite element modeling, the study evaluates stress distribution, deformation patterns, and anchor performance. Partial failures often occur due to improper design assumptions, soil variability, or construction issues. The model simulates different loading and soil conditions to identify critical failure zones. Results highlight the importance of accurate soil characterization and anchor design. The study provides insights into improving design reliability and preventing localized failures. These findings contribute to safer and more efficient retaining system designs.
SLCIA TRP Central Tunnel Project Temporary Earth Shoring (13 minutes)
This presentation discusses the temporary earth shoring system used in the SLCIA TRP Central Tunnel Project. The project required complex excavation support in challenging subsurface conditions. Various shoring techniques were implemented to ensure stability and safety during construction. The presentation outlines design considerations, construction sequencing, and monitoring practices. Field performance data are used to evaluate the effectiveness of the shoring system. Challenges such as groundwater control and load management are addressed. Lessons learned from the project provide valuable insights for future large-scale tunneling and excavation works.
Benefits and Learning Outcomes
Upon completion of this course, you will be able to:
- Explain how chloride movement in soils affects the durability of earth retaining systems and how novel measurement techniques improve monitoring.
- Describe the performance characteristics of lightweight cellular concrete as a backfill in retaining wall systems.
- Identify the factors contributing to partial failures in anchored pile systems using finite element analysis.
- Discuss the design and performance considerations of temporary earth shoring systems in large tunnel projects.
Assessment of Learning Outcomes
Students' achievement of the learning outcomes will be assessed via a short post-test assessment (true-false, multiple choice, and/or fill in the blank questions).
Who Should Attend?
- Geotechnical Engineer
- Civil Engineers (Geotechnical/Foundations focus)
- Engineering Geologists
- Infrastructure & Transportation Engineers
- Construction Engineers and Managers
- Researchers, Faculty, and Students in Geotechnics
How to Earn your CEUs/PDHs and Receive Your Certificate of Completion
To receive your certificate of completion, you will need to complete a short on-line post-test and receive a passing score of 70% or higher within 365 days of the course purchase.
How do I convert CEUs to PDHs?
1.0 CEU = 10 PDHs [Example: 0.1 CEU = 1 PDH]