Design of soil structures reinforced with geogrids and geotextiles

The characteristics of the materials used to build structures in reinforced soil are crucial to ensure its stability and longevity. Therefore, understanding the behavioral parameters that govern the soil-geosynthetic, the Determination of Available Strength of the geosynthetics y cómo these are involved in design methodologies, is essential.

First, it is essential to identify the various failure mechanisms that can occur in the design of structures on soil reinforced with geosynthetics, such as internal stability, external stability, and global stability. In these cases, the tensile strength of the reinforcing geosynthetic and the soil’s thrust resistance determine the stability condition that is achieved.

Another crucial aspect to be taken into account is the pull-out resistance, which refers to the ability of the geosynthetics reinforcement to resist internal stresses in the soil mass within the design of structures on soil reinforced with geosynthetics.

International standards and guidelines establish the criteria and methodologies for the design of structures on soil reinforced with geosynthetics. In Latin America, countries such as Colombia, Ecuador, Panama, and Peru have adopted these standards as the basis for their own regulations.

With regard to resistance available from geosynthetic reinforcement, it is crucial to consider reduction factors for various aspects such as the damage caused by installation, damage associated with the chemical environment of the soil in which the geosynthetics and by the long-term mechanical stability or creep, to calculate the available strength of the materials. Also, et is important to consider that, Although it is possible to replace geogrids with geotextiles during construction, this is not recommended make it without a new engineering design that takes into account the mechanism of reinforcement transfer to the soil and the aspects of deformability due to a change in the polymer or resin from which they are made.

In summary, the design of structures reinforced with geosynthetics demands an approach strict based on international standards. Taking into account factors such as soil strength, structural geometry, and design guidelines is essential to ensuring the long-term stability and durability of these structures. The appropriate The application of these guidelines ensures that reinforced soil structures meet the quality and safety standards required in various construction contexts.