Abstract #
This study examines the extent to which various software programs comply with Eurocode 7 in calculating the bearing capacity of strip foundations. The research involves a parametric sensitivity analysis to compare the results from the GEO5 and Deltares software programs with the analytical method prescribed by Eurocode 7. The analysis focuses on the reliability of these software programs under different conditions, such as varying soil properties and load scenarios. The study concludes that while there is a high degree of conformity between the software programs and the Eurocode 7 analytical method, there are instances where deviations occur, particularly with high angles of shearing resistance.
Technical Relevance #
This document is essential for geotechnical engineers and professionals involved in foundation design, particularly those working with strip foundations. The study provides critical insights into the accuracy and reliability of popular geotechnical software programs in relation to Eurocode 7, making it a valuable resource for ensuring that foundation designs meet regulatory standards and perform as expected under various conditions.
Target Audience #
The document is intended for geotechnical engineers, civil engineers, researchers, and professionals involved in foundation design and analysis. It is particularly relevant for those using software programs to design strip foundations, where compliance with Eurocode 7 is essential for ensuring the safety and stability of the structure.
Software and Methodology #
The study employs GEO5 and Deltares software programs to conduct the numerical analysis, comparing the results with the analytical method described in Eurocode 7. The methodology includes a benchmark exercise involving a strip foundation on clay, with specific parameters such as undrained shear strength, angle of shearing resistance, and effective cohesion. The research model is used to perform a parametric sensitivity analysis, evaluating the impact of various soil and load parameters on the bearing capacity calculated by each software program.
Process Description #
The paper begins with an overview of the Eurocode 7 requirements for bearing capacity calculations and the relevance of these standards in geotechnical engineering. The process description includes the setup of the benchmark exercise, detailing the soil properties and load conditions used in the analysis. The study then outlines the parametric sensitivity analysis conducted using GEO5 and Deltares software, comparing the results with the analytical method of Eurocode 7. The research focuses on identifying discrepancies between the software outputs and the standard, particularly in cases where the angle of shearing resistance is high.
Main Findings #
The study finds that both GEO5 and Deltares software generally comply with the Eurocode 7 analytical method for calculating the bearing capacity of strip foundations. However, discrepancies arise when the angle of shearing resistance exceeds the prescribed limits, with Deltares being slightly more conservative in its calculations compared to GEO5. The research highlights the importance of understanding these limitations and the need for engineers to critically assess software outputs, particularly when dealing with high shear strength values.
Practical Applications #
The findings from this study are directly applicable to the design and analysis of strip foundations in geotechnical engineering. Engineers can use the insights gained from this research to ensure that their foundation designs are both compliant with Eurocode 7 and reliable under various conditions. The study also provides valuable guidance on the use of GEO5 and Deltares software, helping engineers to better understand the limitations and strengths of these tools.
Limitations and Considerations #
The document acknowledges that the accuracy of the software outputs depends on the quality of the input data, particularly soil parameters such as cohesion and angle of shearing resistance. Engineers should conduct thorough site investigations and consider local geological conditions when applying these findings to their projects. The study also emphasizes the need for ongoing validation and testing to ensure that software programs continue to comply with evolving standards and regulations.
Conclusions #
The paper concludes that while GEO5 and Deltares software programs generally align with Eurocode 7 for bearing capacity calculations, engineers must remain vigilant about potential discrepancies, particularly at high shear strength values. The study suggests that additional safeguards, such as warnings within the software when input values exceed recommended limits, could enhance the reliability of these tools. The research underscores the importance of using both analytical methods and software tools in tandem to achieve accurate and compliant foundation designs.
Related Resources #
Further reading includes studies on the application of Eurocode 7 in foundation design, research on the use of parametric sensitivity analysis in geotechnical engineering, and case studies on the performance of strip foundations in various soil conditions. Additional resources on the calibration of geotechnical software and the comparison of different foundation design methods can provide deeper insights into optimizing foundation designs.
📥 Download LINK
