Geosynthetics in Railroad Rehabilitation

Objectives

The main objectives of the Geosynthetics in Railroad Rehabilitation (GRF) course are to provide knowledge on the various aspects related to the use of geosynthetics in railroads, from the main types of existing materials, their properties, the multiple functions they can play in these works, the sizing methods and the care to be taken in the selection and installation.

General characterization

Code

12385

Credits

1.5

Responsible teacher

Zuzana Dimitrovova

Hours

Weekly - Available soon

Total - 12

Teaching language

Português

Prerequisites

• Basic knowledge of geotechnical engineering.

Bibliography

• Use of geogrid in the construction of railroads. Innovative Infrastructure Solutions
• Laboratory and field investigation of the effect of geogrid-reinforced ballast on railway track lateral resistance.
• Application of geocomposite placed beneath ballast bed to improve ballast quality and track stability.
• Ballast Railroad Design: SMART-UOW Approach.
• State-of-the-art design aspects of ballasted rail tracks incorporating particle breakage, fouling, and the benefits of geosynthetic reinforcement.
• Field assessment of the performance of a ballasted rail track with and without geosynthetics.
• Designing with geosynthetics.
• Improved performance of geosynthetics enhanced ballast: laboratory and numerical studies.
• Effect of shearing rate on the behaviour of geogrid-reinforced railroad ballast under direct shear conditions.
• Syllabus

Teaching method

The teaching methodology consists of theoretical-practical classes, where various aspects related to the use of geosynthetics in railways are addressed, from the main types of materials available on the market, their properties, the multiple functions they can perform, the design methods and precautions to be taken in selection and installation.

Classes are presented on a digital platform (Zoom), using slides, copies of which are made available to trainees.

The evaluation of the discipline is carried out through a final exam.

Evaluation method

Final exam.

Subject matter

• Properties, tests and design methods
• Geosynthetics in the separation function
• Geosynthetics in drain and filter functions
• Geosynthetics in reinforcement and stabilization functions
• Geosynthetics in erosion control and barrier functions
• Installation of geosynthetics

Programs

Programs where the course is taught: