Numerical Analysis of Rectangular Footing Bearing Capacity Using PLAXIS Software Training

The calculation of the bearing capacity of shallow foundations is an important area of geotechnical engineering. This research looks into the bearing capacity of a rectangular footing resting upon a model of soil utilizing PLAXIS software. PLAXIS is a finite element method (FEM)-based geotechnical analysis software that assists designers in evaluating the behavior of soil and forecasting structural stability. It employs both PLAXIS 2D and PLAXIS 3D to compare the computational outcomes and analyze the failure modes of the foundation.

Numerical Simulation Approach

The numerical analysis was carried out using PLAXIS software to find the bearing capacity and failure modes of the rectangular footing. The model was developed with a rectangular footing located at two different positions: the left corner and the center of the soil model. The Mohr-Coulomb model was employed for cohesionless soil, and the linear-elastic model was used for the foundation.

PLAXIS has three main components: the Input program, the Output program, and the Curves tool. Incremental loading and iterative failure analysis were applied to the prototype footing. The Output program gave numerical results, whereas the Curves tool produced graphs of the failure mechanism.

Data for Modeling and Calculation 

Geometry and Meshing

• 2D Model Size: 1.24m (length) x 0.91m (width) x 0.93m (height)

• Footing Size: 124cm (length) x 18cm (width) x 12mm (thickness)

• Material Model: Mohr-Coulomb model for soil, Linear-elastic model for footing

• Mesh Type: Medium mesh with local element size factor of 0.3

Load-Settlement Data

• 2D Model Collapse Loads: 112.3 kN/m² and 111.8 kN/m²

• 3D Model Collapse Loads: 132.3 kN/m² and 131.7 kN/m²

• Failure Mechanism: Observed settlement patterns and shear strain distribution

The 3D model offered a more realistic estimate of the ultimate bearing capacity compared to the 2D analysis. This illustrates the high accuracy offered by 3D simulations of intricate geotechnical situations. 

Results and Discussion 

The research was able to demonstrate that PLAXIS software well forecasts the deformation and behavior of foundations and soils subjected to varied conditions of loads. The outcome illustrated that:

• The final bearing capacity was greater in the 3D model than in the 2D model.

• Failure mechanisms were better represented in the 3D analysis and are thus a preferred choice for critical geotechnical analyses.

• The application of PLAXIS software in numerical modeling is a useful tool for engineers to analyze foundation performance and soil-structure interaction.

Hands-On Learning Through PLAXIS Training

Engineers can learn by hand through the enrollment of a PLAXIS course, discovering uses of PLAXIS software in actual practice. This training type strengthens technical skills, enabling professionals to carry out complicated geotechnical analyses without hesitation. Experts can also examine PLAXIS training 2D/3D, an offering that allows professionals to access structured learning pathways for mastering both 2D and 3D numerical modeling methods. 

Conclusion

The numerical analysis of a rectangular footing using PLAXIS software training online highlights the importance of FEM-based simulations in geotechnical engineering. The comparison between the PLAXIS 2D training course and the PLAXIS 3D course confirms that 3D modeling provides more precise and reliable results. Engineers and geotechnical professionals can enhance their expertise by participating in PLAXIS training programs, including PLAXIS training course, ensuring they stay ahead in the field of numerical geotechnical analysis.

If you are new to PLAXIS and want to build a solid foundation in its applications, check out Understanding PLAXIS Software for Geotechnical Analysis to learn the basics and explore practical case studies. Additionally, for a comprehensive guide on training opportunities, refer to Top Best PLAXIS Training Courses Online for detailed insights into the best PLAXIS courses available. For hands-on expertise, our PLAXIS software training online provides structured learning paths tailored to both beginners and advanced users.