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INSTRUCTORS:
Isaac L. Howard
Hyungbin Park
Rajat Gangrade
Osvaldo P.M. Vitali
Boules N. Morkos
Course Length: 1 hour
Purpose and Background
These presentations were recorded at the Geo-Congress 2026.
Feasibility Study on Health Monitoring of Buried Structures using Battery-Free and Cable (11 minutes)
This presentation explores the feasibility of monitoring buried infrastructure using battery-free and cable-based sensing technologies. Traditional monitoring systems often rely on wired connections or battery-powered devices, which can be difficult to maintain in subsurface environments. The study investigates alternative sensing approaches that reduce maintenance needs and improve long-term reliability. Battery-free sensors leverage energy harvesting or passive systems to operate without external power sources. Cable-based systems provide continuous data transmission but require robust installation methods. The presentation evaluates the performance, limitations, and practical implementation of these systems. The findings support more sustainable and efficient monitoring strategies for underground infrastructure.
Laboratory Investigation on Advancing an Eco-Friendly Backfill Grout for Shield TBM Tunneling Using Biopolymer-Based Soil Treatment (BPST) (8 minutes)
This presentation investigates the development of an eco-friendly backfill grout for shield tunnel boring machine (TBM) operations using biopolymer-based soil treatment (BPST). Traditional grouts often rely on cementitious materials with high environmental impacts. The study explores biopolymers as sustainable alternatives that can improve soil behavior while reducing carbon footprint. Laboratory tests evaluate strength, flowability, and durability of the treated materials. Results demonstrate that BPST can enhance grout performance while maintaining environmental benefits. The research also examines compatibility with TBM operations. This work contributes to greener tunneling practices.
GIS Interoperability Framework for Risk Management in Tunneling Projects (14 minutes)
This presentation introduces a GIS-based interoperability framework designed to improve risk management in tunneling projects. Tunneling involves complex data from multiple sources, including geological, structural, and environmental datasets. The framework enables seamless integration and sharing of data across platforms and stakeholders. Improved interoperability enhances decision-making and reduces risks during project planning and execution. The presentation highlights how GIS tools can visualize and analyze potential hazards. Case examples demonstrate improved coordination and efficiency. This approach supports safer and more informed tunneling practices.
Numerical Modeling of Centrifuge Tunnel Tests Using the Norsand and the Hardening Soil Model (12 minutes)
This presentation focuses on numerical modeling of centrifuge tunnel tests using advanced soil constitutive models such as NorSand and the Hardening Soil Model. Centrifuge testing replicates field stress conditions at a reduced scale, providing valuable experimental data. Numerical models are used to simulate these tests and validate soil behavior predictions. The study compares different modeling approaches to assess their accuracy. Results highlight the strengths and limitations of each model in capturing tunnel response. The presentation emphasizes the importance of selecting appropriate constitutive models. These insights improve predictive capabilities in geotechnical design.
Influence of Geometry and Mass Distribution on Penetrator Stability in FEM Simulations of Rapid Penetration in Clay (11 minutes)
This presentation investigates how geometry and mass distribution influence penetrator stability in finite element method (FEM) simulations of rapid penetration in clay. Penetration problems are complex due to large deformations and nonlinear soil behavior. The study evaluates how different shapes and mass configurations affect penetration depth and stability. FEM simulations are used to analyze stress distribution and failure mechanisms. Results show that geometry plays a critical role in performance outcomes. Proper modeling improves prediction accuracy for penetration behavior. These findings are relevant for geotechnical and defense-related applications.
Benefits and Learning Outcomes
Upon completion of this course, you will be able to:
- Explain the advantages and limitations of battery-free and cable-based monitoring systems for buried structures.
- Describe how biopolymer-based soil treatment improves sustainability and performance in TBM backfill grout.
- Discuss how GIS interoperability enhances risk management in tunneling projects.
- Identify the role of advanced constitutive models in simulating centrifuge tunnel tests.
- Explain how geometry and mass distribution influence penetrator stability in FEM simulations.
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]