This eighteenth manual in the GEO5 engineering series focuses on the analysis of deformation and the dimensioning of a pile group using the GEO5 Pile Group program. The manual provides a detailed guide to analyzing the angular rotation, displacement of a stiff pile cap, and determining the internal forces acting along the lengths of individual piles. Available for download, this manual is an essential resource for geotechnical engineers involved in the design and verification of pile group foundations.

Learning Objective:

The goal of this manual is to teach users how to perform a comprehensive analysis of the deformation and dimensioning of a pile group using the Spring Method in GEO5. Users will learn how to set up the problem, define the necessary boundary conditions, and assess the internal forces and reinforcement requirements for the pile group.

Assignment Description:

In this assignment, users are tasked with analyzing the deformation and dimensioning of a pile group using the Spring Method within the GEO5 Pile Group program. The analysis includes calculating the angular rotation and horizontal displacement of the pile cap, as well as determining the internal forces and necessary reinforcement for the piles. The manual guides users through each step, from importing data to interpreting the results for the pile group’s structural integrity.

Outcome:

Upon completing this assignment, users will be able to accurately assess the deformation and dimensioning of a pile group using GEO5 software. They will gain practical experience in applying the Spring Method, interpreting the results, and ensuring that the pile group design meets the necessary safety and performance criteria.

Conclusions:

The manual concludes that the maximum settlement, horizontal displacement, and pile cap rotation are within allowable limits for the pile group. The analysis shows that while internal forces and deformations vary slightly depending on the method used for calculating the modulus of subsoil reaction, the overall impact is not significant. The proposed reinforcement for the piles is satisfactory, ensuring the structural integrity of the pile group.

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