Numerical Modelling of Static Triaxial Behaviour of Geocell Reinforced Sand

Krishnaraj, P and Latha, GM and Sitharam, TG (2025) Numerical Modelling of Static Triaxial Behaviour of Geocell Reinforced Sand. In: Indian Geotechnical Conference, IGC 2022, 15 December 2022 through 17 December 2022, Kochi, pp. 287-294.

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Abstract

Geocells are three-dimensional geosynthetics that consist of interconnected cells filled with soil. Reinforcing the soil with geocells improves the soil properties through friction, interlocking, and confinement. Many experimental studies were conducted to quantify the beneficial effects of geocell reinforcement in enhancing the stiffness and strength properties of the soil. However, not many numerical studies are available to understand the behaviour of geocell reinforced sand in triaxial compression. Due to the complexities involved in modelling the actual honeycomb shape of the geocell, most of the previous numerical studies were either conducted using Equivalent Composite Approach (ECA) or by approximating the actual shape of the geocells to simpler shapes like square, diamond or circular shape. FLAC3D was used to carry out numerical analyses in the current study. Triaxial compression tests on a cylindrical sample of unreinforced sand and sand reinforced with honeycomb-shaped geocells are simulated by implementing the actual shape of geocells. The parametric analysis was carried out on the validated numerical model to understand the effects of confining pressure, geocell diameter, modulus of the geocell material on stress�strain response of the geocell-reinforced sand. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

Item Type:	Conference Paper
Publication:	Lecture Notes in Civil Engineering
Publisher:	Springer Science and Business Media Deutschland GmbH
Additional Information:	The copyright for this article belongs to Springer Science and Business Media Deutschland GmbH
Keywords:	Digital elevation model; Geosynthetic materials; Honeycomb structures; Sand, Beneficial effects; FLAC 3D; Geocell reinforcement; Geocells; Geosynthetics; Interlockings; Reinforced sand; Soil property; Stiffness and strength properties; Triaxial compression, Compression testing
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	09 Dec 2024 18:02
Last Modified:	09 Dec 2024 18:02
URI:	http://eprints.iisc.ac.in/id/eprint/87085

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