Settlement analysis of column-like elements

Wanatowski, Dariusz; Al-Ani, Wisam; Grizi, Athina

Abstract

In recent years, column-like elements have been recognized as an effective ground improvement method to support superstructures constructed on soft soils. Different types of columns are characterized by different construction techniques, rigidity and materials used to construct these columns. This paper uses a new analytical method derived to assess the performance of column-like elements under applied external loads. The critical length of column-like element is determined to estimate the column length required to resist applied load solely by the floating column. The analytical method is used together with the Finite Element Analysis to investigate the effectiveness of stone columns in reducing the settlement of pad and strip footings using the relative settlement reduction (RSR). Overall, the simplified analytical model yields reasonable results when predicting the settlement improvement of small group footings due to the installation of stone columns.

Citation

Wanatowski, D., Al-Ani, W., & Grizi, A. (2022). Settlement analysis of column-like elements. In Proceedings of the 20th International Conference on Soil Mechanics and Geotechnical Engineering, Sydney 2021

• Conference Name: 20th International Conference on Soil Mechanics and Geotechnical Engineering
• Conference Location: Sydney, Australia
• Start Date: May 1, 2022
• End Date: May 5, 2022
• Acceptance Date: Jan 16, 2022
• Online Publication Date: Jun 30, 2022
• Publication Date: 2022-05
• Deposit Date: May 24, 2022
• Publicly Available Date: Jun 9, 2022
• Book Title: Proceedings of the 20th International Conference on Soil Mechanics and Geotechnical Engineering, Sydney 2021
• ISBN: 9780994626141
• Keywords: ground improvement; stone columns; settlement; soft clay
• Public URL: https://nottingham-repository.worktribe.com/output/8134768
• Related Public URLs: https://icsmge2022.org/