Verification of Spread Footing Design Using GEO5


The GEO5 Spread Footing Verification Manual is essential for geotechnical engineers who need to ensure the accuracy and reliability of their spread footing designs. This manual focuses on the verification process, comparing manual calculations with the results generated by the GEO5 Spread Footing program. The benchmarking process plays a crucial role in validating the software’s performance under various conditions, including different load scenarios.

Learning Objectives
This manual aims to teach users how to:

  • Perform manual calculations for the bearing capacity of spread footings.
  • Verify these calculations using GEO5 software.
  • Apply the benchmarking process to ensure design accuracy and compliance with engineering standards.

Purpose of the Verification Manual
The manual’s primary purpose is to validate the results provided by the GEO5 Spread Footing program against hand-made calculations. This process ensures that spread footing designs are safe and meet industry standards, particularly under drained conditions in a permanent design situation.

Content Overview

  • Basic Concepts and Assumptions: Overview of the principles behind spread footing design and key assumptions used during the verification process.
  • Methodology: Step-by-step guide to performing manual calculations, including the calculation of effective areas, load eccentricity, and vertical bearing capacity using the standard approach based on Eurocode 7 (EC 1997).
  • GEO5 Software Application: Instructions on how to input design parameters into the GEO5 Spread Footing program and compare the software’s results with manual calculations.
  • Benchmarking Process: Detailed comparison between manual calculations and GEO5 results, with insights into the accuracy and reliability of the software.
  • Comparison and Analysis: Analysis of the differences and similarities between the two methods, providing confidence in the design’s safety and stability.

Practical Assignment
Users are encouraged to perform a verification analysis of a spread footing design using both manual calculations and GEO5 software. This practical assignment involves calculating various parameters, such as the effective area, load eccentricity, and vertical bearing capacity, and then benchmarking these results against the software output.

Conclusions
The manual concludes that the GEO5 Spread Footing program provides results that closely align with hand-made calculations, confirming the software’s accuracy and reliability for spread footing design verification. This ensures that the designs meet the necessary safety and performance standards.


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