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Deformation of Stone Column Subjected to Earthquake Loading by Numerical Analysis
https://orcid.org/http://orcid.org/0000-0002-7374-3812
https://orcid.org/http://orcid.org/0000-0002-5893-1495
Stone columns have been widely used as one of the economical ground improvement techniques in soft soils. Stone columns improve the settlement characteristics of soft soil deposits. Besides, stone columns are capable of dissipating excess pore water pressure when subjected to earthquake loading, by acting as a drainage component. The mechanism of stone column under static loading conditions is well known, but the study on the behaviour of stone column subjected to earthquake loading is meagre. The objective of the study is to compare the bulging pattern of stone column and stress concentration factor under earthquake loading using numerical analysis software, PLAXIS 2D. For validation, numerical analyses are carried out from field test results, for static loading and earthquake loading. These cases are simulated in software and the load–settlement curves are found to be comparable with the field test results. For the present study, static analyses are carried out for loading on stone column alone and equivalent area of stone column. Earthquake analyses are carried out by loading stone column alone. The variation in the bulging pattern and stress concentration factor for the above said conditions are observed.
Deformation of Stone Column Subjected to Earthquake Loading by Numerical Analysis
https://orcid.org/http://orcid.org/0000-0002-7374-3812
https://orcid.org/http://orcid.org/0000-0002-5893-1495
Stone columns have been widely used as one of the economical ground improvement techniques in soft soils. Stone columns improve the settlement characteristics of soft soil deposits. Besides, stone columns are capable of dissipating excess pore water pressure when subjected to earthquake loading, by acting as a drainage component. The mechanism of stone column under static loading conditions is well known, but the study on the behaviour of stone column subjected to earthquake loading is meagre. The objective of the study is to compare the bulging pattern of stone column and stress concentration factor under earthquake loading using numerical analysis software, PLAXIS 2D. For validation, numerical analyses are carried out from field test results, for static loading and earthquake loading. These cases are simulated in software and the load–settlement curves are found to be comparable with the field test results. For the present study, static analyses are carried out for loading on stone column alone and equivalent area of stone column. Earthquake analyses are carried out by loading stone column alone. The variation in the bulging pattern and stress concentration factor for the above said conditions are observed.
Deformation of Stone Column Subjected to Earthquake Loading by Numerical Analysis
https://orcid.org/http://orcid.org/0000-0002-7374-3812
https://orcid.org/http://orcid.org/0000-0002-5893-1495
Stone columns have been widely used as one of the economical ground improvement techniques in soft soils. Stone columns improve the settlement characteristics of soft soil deposits. Besides, stone columns are capable of dissipating excess pore water pressure when subjected to earthquake loading, by acting as a drainage component. The mechanism of stone column under static loading conditions is well known, but the study on the behaviour of stone column subjected to earthquake loading is meagre. The objective of the study is to compare the bulging pattern of stone column and stress concentration factor under earthquake loading using numerical analysis software, PLAXIS 2D. For validation, numerical analyses are carried out from field test results, for static loading and earthquake loading. These cases are simulated in software and the load–settlement curves are found to be comparable with the field test results. For the present study, static analyses are carried out for loading on stone column alone and equivalent area of stone column. Earthquake analyses are carried out by loading stone column alone. The variation in the bulging pattern and stress concentration factor for the above said conditions are observed.
Deformation of Stone Column Subjected to Earthquake Loading by Numerical Analysis
Lecture Notes in Civil Engineering
Sitharam, T. G. (editor) / Parthasarathy, C. R. (editor) / Kolathayar, Sreevalsa (editor) / Priyadharshini, Maniam Rajan (author) / Premalatha, Krishnamurthy (author)
2021-03-25
14 pages
Article/Chapter (Book)
Electronic Resource
English
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