This thirty-sixth manual in the GEO5 engineering series provides a comprehensive guide to verifying the design of a micropile foundation for a tower crane using the GEO5 Pile Group program. The manual covers the analysis of the foundation’s load-bearing capacity, settlement, and internal forces, ensuring that the design meets the safety and performance standards specified by EN 1997 – DA2. Available for download, this manual is essential for geotechnical engineers involved in the design and verification of micropile foundations.

Learning Objective:

The goal of this manual is to teach users how to analyze and verify the load-bearing capacity and settlement of a micropile foundation using the GEO5 Pile Group program. Users will learn how to input the geometry, material properties, and load conditions of a micropile group, perform the necessary calculations, and interpret the results to ensure the foundation’s adequacy under the given design loads.

Assignment Description:

In this assignment, users are tasked with verifying the micropile foundation of a tower crane, considering a group of micropiles arranged in a specific pattern. The analysis includes determining the vertical and horizontal displacements, internal forces, and rotation of the pile cap under service and design loads. The manual provides step-by-step instructions for setting up the model, performing the analysis, and verifying the results for both compressive and tensile micropiles.

Outcome:

Upon completing this assignment, users will be able to accurately verify the design of a micropile foundation using GEO5 software. They will gain practical experience in applying the Spring Method for analyzing micropiles as beams on an elastic bed, interpreting the results for maximum internal forces, and ensuring that the foundation meets the necessary safety standards.

Conclusions:

The manual concludes that the design of the micropile foundation, including the steel cross-section and root bearing capacity, is satisfactory according to EN 1997 – DA2. The analysis results indicate that the maximum settlement, horizontal displacements, and rotation of the pile cap are within allowable limits, confirming the foundation’s adequacy for the intended application.

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