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INSTRUCTORS:
Ba-Phu Nguyen
Abhishek Tiwari
Sebastian Lobo-Guerrero, Ph.D., P.Eng.
Murad Y. Abu-Farsakh, Ph.D., P.E.
Course Length: 1 hour
Purpose and Background
These presentations were recorded at the 2024 Geo-Structures Conference.
A Simplified Method for Prediction of Consolidation Coefficient from Self-Boring Pressuremeter Test (14 minutes)
This presentation introduces a simplified method for predicting the consolidation coefficient of soil using data from the self-boring pressuremeter test. The method aims to enhance the accuracy of determining soil consolidation properties by reducing disturbances to natural stress conditions during testing. Key aspects covered include an overview of self-boring pressuremeter technology, the proposed methodology, validation through case studies, and comparisons with existing analytical solutions. The presentation highlights the advantages of this approach, such as improved prediction accuracy and reduced reliance on conventional estimation techniques. Attendees will gain insights into how this method refines soil behavior analysis and contributes to geotechnical engineering practices.
Wave Impact Pressure Assessment on Geosynthetic Reinforced Earthen Containment Dikes in Coastal Louisiana (8 minutes)
This presentation examines the impact of waves on geosynthetic-reinforced earthen containment dikes designed to protect Louisiana’s coastal wetlands. With increasing storm activity threatening coastal infrastructure, understanding wave-induced hydrodynamic pressures on sloped dike structures is crucial. The research applies empirical formulas and numerical wave modeling techniques to assess pressure distribution on containment dikes. Findings offer insights into improving design practices for better resilience against storm surges. The discussion includes wave modeling approaches, comparative analysis of wave pressure estimation methods, and recommendations for optimizing geosynthetic-reinforced dike designs.
Evolution of Geosynthetic Reinforced Soil (GRS) Slopes and Earth Retaining Structures in Pennsylvania (24 minutes)
This presentation traces the development of geosynthetic-reinforced soil (GRS) slopes and earth-retaining structures in Pennsylvania, particularly for transportation applications. The discussion begins with traditional earth-retaining systems before transitioning into modern GRS applications. Design methodologies, construction techniques, and regulatory advancements are explored to illustrate the growing role of GRS technology in infrastructure. A case study on a hybrid GRS system implemented for the Pennsylvania Turnpike Commission is presented, highlighting the performance and cost benefits of these systems. Attendees will gain an understanding of the evolution, advantages, and practical considerations of GRS structures in geotechnical engineering.
Performance Evaluation of Geosynthetic-Reinforced Pile-Supported Embankments Built over Soft Soil (23 minutes)
This presentation evaluates the performance of geosynthetic-reinforced pile-supported embankments (GRPSE) constructed over soft soils using numerical modeling and real-world case studies. The discussion includes challenges associated with embankment construction on weak soil foundations, such as settlement and stability issues. Various design methodologies are assessed using finite element analysis to compare their effectiveness in load transfer and differential settlement reduction. The findings offer a comprehensive understanding of GRPSE behavior, guiding engineers in selecting optimal reinforcement techniques. The study contributes to the advancement of embankment stability solutions for infrastructure projects in challenging soil conditions.
Benefits and Learning Outcomes
Upon completion of these sessions, you will be able to:
- Describe the process of using self-boring pressuremeter tests to determine soil consolidation characteristics.
- Explain the hydrodynamic forces acting on geosynthetic-reinforced dikes and their implications for dike stability.
- Discuss the advancements in design and construction methodologies for GRS slopes and retaining structures in transportation applications.
- Identify key design parameters and evaluation criteria for geosynthetic-reinforced pile-supported embankments on soft soils.
Assessment of Learning Outcomes
Learning outcomes are assessed and achieved through passing a 10 multiple choice question post-test with at least a 70%.
Who Should Attend?
- Environmental Engineers
- Geotechnical Engineers
- Structural Engineers
- Construction Engineers
- Project Managers
- General Contractors
How to Earn your PDHs and Receive Your Certificate of Completion
This course is worth 0.1CEU/1 PDH. 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]