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Analysis and Stabilization of Toe Excavated Slopes Using Rigid Columns
Construction activities at the toe of the slope such as excavations for road, rail and bridge construction is a leading factor to reduce the natural slope stability, which fails when shear stress is more than the shear strength of soil slope. Thus, rigid columns can be regarded as an appealing mechanism for earth slopes stabilization with toe excavation. Furthermore, it is cost-effective and simple to implement. The main objective of this study is to investigate the effectiveness of rigid columns on improving the slope stability. Using PLAXIS 3D, a finite element model of the slope and excavation at the toe of the slope with rigid column insertion is modelled. Geometric variations were carried out to investigate the potential for optimization. According to various parametric studies, embedment depth, diameter and centre to centre spacing of columns are causing shift in failure mechanism. This paper presents a finite element analysis to predict the forces, displacements and moments on columns caused by toe excavated slope. Finally, the optimal column layout is determined by the contributions of columns at various depths beneath the ground.
Analysis and Stabilization of Toe Excavated Slopes Using Rigid Columns
Construction activities at the toe of the slope such as excavations for road, rail and bridge construction is a leading factor to reduce the natural slope stability, which fails when shear stress is more than the shear strength of soil slope. Thus, rigid columns can be regarded as an appealing mechanism for earth slopes stabilization with toe excavation. Furthermore, it is cost-effective and simple to implement. The main objective of this study is to investigate the effectiveness of rigid columns on improving the slope stability. Using PLAXIS 3D, a finite element model of the slope and excavation at the toe of the slope with rigid column insertion is modelled. Geometric variations were carried out to investigate the potential for optimization. According to various parametric studies, embedment depth, diameter and centre to centre spacing of columns are causing shift in failure mechanism. This paper presents a finite element analysis to predict the forces, displacements and moments on columns caused by toe excavated slope. Finally, the optimal column layout is determined by the contributions of columns at various depths beneath the ground.
Analysis and Stabilization of Toe Excavated Slopes Using Rigid Columns
Lecture Notes in Civil Engineering
Jose, Babu T. (editor) / Sahoo, Dipak Kumar (editor) / Oommen, Thomas (editor) / Muthukkumaran, Kasinathan (editor) / Chandrakaran, S. (editor) / Santhosh Kumar, T. G. (editor) / Pomson, Shini S. (author) / Hari, G. (author)
Indian Geotechnical Conference ; 2022 ; Kochi, India
Proceedings of the Indian Geotechnical Conference 2022 Volume 6 ; Chapter: 24 ; 289-299
2024-07-23
11 pages
Article/Chapter (Book)
Electronic Resource
English
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