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A Study on the Vertical Pullout Capacity of Suction Caisson Foundation in Sandy and Clayey Soils
https://orcid.org/http://orcid.org/0000-0003-1579-4352
This paper presents the vertical pullout behaviour of suction caisson foundation in clayey and sandy soils by means of finite element analysis using PLAXIS 2D under vertical static loading. The effect of caisson aspect ratio (L/D) on pullout capacity and caisson displacement was investigated under drained and undrained loading. The caisson aspect ratio has been varied from 0.5 to 3 by fixing caisson diameter and increasing caisson length. The analysis, predicted that undrained pullout gives the higher limit and drained pullout gives the lower limit of vertical pullout. Undrained pullout capacity is found to be nearly a minimum of 1.4 times and 5 times that of drained pullout capacity for clay and sand, respectively. The pullout capacity and failure displacement increase continuously with increasing caisson aspect ratio. Pullout capacity of foundation is greater under sandy soil compared to that of clayey soil under undrained conditions, and at all aspect ratios. The caisson deformation up to failure is greater under drained conditions for both clay and sand, and it is found to be higher for clay than sand in both drainage conditions.
A Study on the Vertical Pullout Capacity of Suction Caisson Foundation in Sandy and Clayey Soils
https://orcid.org/http://orcid.org/0000-0003-1579-4352
This paper presents the vertical pullout behaviour of suction caisson foundation in clayey and sandy soils by means of finite element analysis using PLAXIS 2D under vertical static loading. The effect of caisson aspect ratio (L/D) on pullout capacity and caisson displacement was investigated under drained and undrained loading. The caisson aspect ratio has been varied from 0.5 to 3 by fixing caisson diameter and increasing caisson length. The analysis, predicted that undrained pullout gives the higher limit and drained pullout gives the lower limit of vertical pullout. Undrained pullout capacity is found to be nearly a minimum of 1.4 times and 5 times that of drained pullout capacity for clay and sand, respectively. The pullout capacity and failure displacement increase continuously with increasing caisson aspect ratio. Pullout capacity of foundation is greater under sandy soil compared to that of clayey soil under undrained conditions, and at all aspect ratios. The caisson deformation up to failure is greater under drained conditions for both clay and sand, and it is found to be higher for clay than sand in both drainage conditions.
A Study on the Vertical Pullout Capacity of Suction Caisson Foundation in Sandy and Clayey Soils
https://orcid.org/http://orcid.org/0000-0003-1579-4352
This paper presents the vertical pullout behaviour of suction caisson foundation in clayey and sandy soils by means of finite element analysis using PLAXIS 2D under vertical static loading. The effect of caisson aspect ratio (L/D) on pullout capacity and caisson displacement was investigated under drained and undrained loading. The caisson aspect ratio has been varied from 0.5 to 3 by fixing caisson diameter and increasing caisson length. The analysis, predicted that undrained pullout gives the higher limit and drained pullout gives the lower limit of vertical pullout. Undrained pullout capacity is found to be nearly a minimum of 1.4 times and 5 times that of drained pullout capacity for clay and sand, respectively. The pullout capacity and failure displacement increase continuously with increasing caisson aspect ratio. Pullout capacity of foundation is greater under sandy soil compared to that of clayey soil under undrained conditions, and at all aspect ratios. The caisson deformation up to failure is greater under drained conditions for both clay and sand, and it is found to be higher for clay than sand in both drainage conditions.
A Study on the Vertical Pullout Capacity of Suction Caisson Foundation in Sandy and Clayey Soils
Lecture Notes in Civil Engineering
Satyanarayana Reddy, C. N. V. (editor) / Saride, Sireesh (editor) / Haldar, Sumanta (editor) / Patel, Suchit Kumar (author) / Singh, Baleshwar (author)
2021-08-03
11 pages
Article/Chapter (Book)
Electronic Resource
English
Pullout Mechanism of Geogrids Under Confinement by Sandy and Clayey Soils
| British Library Online Contents | 1995