Product Overview:
This tutorial presents a simulation of embankment construction with geocell reinforcement on saturated soil using Abaqus. The soil is modeled as a two-dimensional shell element, divided into dry and saturated zones. The embankment is also represented as a two-dimensional shell element and is divided into three distinct zones. The geocell layers are defined as two-dimensional wire elements.

The soil behavior is modeled using an elastic-plastic material with permeability to account for pore pressure changes during the analysis, while the geocell components are modeled using an elastic material. The simulation begins with a geostatic step to establish equilibrium for all parts. In the second step, a soil step is used, during which the first layer of geocell is introduced to the model. In total, seven steps are defined to incorporate all layers of the embankment and geocell into the model. Finally, a soil step with an extended duration is used to achieve consolidation within the model. Interactions are assigned between the three layers of the embankment and geocell. A fixed boundary condition is applied to the bottom of the soil, and zero pore pressure is defined for the dry zone. Body force loads are applied to all components, and initial stress due to elevation is assigned to the soil. A fine mesh is recommended to obtain accurate results.

After completing the simulation, various results such as stress, displacement, pore pressure, settlement, and diagrams can be obtained.

Key Topics:

• Assigning different materials and defining unique interactions.
• Utilizing advanced steps to monitor pore pressure changes over time.
• Mesh design and computational analysis to yield accurate results.