Numerical Assessment of Isolated Footing Capacity due to its Size and the Impact of Neighboring Foundation

Document Type : Research Note

Authors

1 Department of Civil Engineering, Ahsanullah University of science and Technology, Dhaka, Bangladesh

2 Assistant Professor, Department of Civil Engineering, Ahsanullah University of Science and Technology, Dhaka, Bangladesh

3 Lecturer, Department of Civil Engineering, Ahsanullah University of Science and Technology, Dhaka, Bangladesh

Abstract

Shallow foundations are uses for safe transmission of structural load to the ground considering soil bearing capacity and allowable settlement. In this research, an empirical analysis is present by using Terzaghi and Meyerhof model. Which is compared with numerical analysis using PLAXIS 3D Foundation. Bearing capacity determined by both cases matched well. The purpose of the study is to predict the maximum allowable stress capacity of shallow foundation in different conditions and establish relationships between stress and settlements for different footing dimensions under various circumstances, as well as the impact of pressure bulb overlapping of two adjacent footing. There are some notable findings are found in this study such as Ultimate stress bearing capacity of soil under allowable settlement varies if two adjacent footings are placed 1.5 m apart. Similar results have been found by varying spacing 2 m & 2.5 m. Sizes of footing may have insignificant effect on spacing between two adjacent footings. And footing may act as an isolated footing in 3 m away from another footing on sandy soil and 2 m away from another footing on clayey soil.

Keywords

Main Subjects

References

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History

  • Receive Date: 19 December 2021
  • Revise Date: 06 June 2022
  • Accept Date: 07 July 2022

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