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GeoAmericas - 2020
Abstract: 83-1

83-1

SOIL REINFORCEMENT DESIGN WITH GEOSYNTHETICS FOR WIND FARMS

Authors:
Ing.1, Escamilla Cayetano1, Ing.1
1 MM - Maccaferri de Mexico Sa de Cv

Abstract:

Nowadays the generation of electricity from fossil sources in Mexico goes around the 80% of the total generation. According to the Mexican Wind Energy Association, Mexico has a commitment to reduce this percentage to the 65% for the 2024. To achieve this goal, wind technology plays a fundamental role, since in most countries with similar goals, wind energy has been responsible for around two thirds of the total target. The spectacular growth of the wind market has been driven by several factors such as: the increase in energy demand, the greatest concern for environmental aspects, in particular climate change, and the important advances in wind technology.

On shore wind farms can easily involve hub heights of 150 m and the rotator diameters can exceed the 125 m. These dimensions elevate exponentially the load applied to the ground soil, that stated to play an important role in the definition of the perfect site yard for install a wind farm, moreover of the wind analysis, as velocity and direction. Develop a wind farm means large scale projects in remote areas, Mexico has a large story of compressible soils unsuitable to support this type of surcharges, as deserts and lake areas.

One of the main issues of the site develop is how to install the wind hub and rotators without a foundation collapse. A fast and rentable solution is the use of Geosynthetic materials, like geogrids and geotextiles for the access roads reinforcement as for the loading platforms. Geosynthetics help to avoid failures in the installation process and to reduce costs. The authors aim for this paper is giving a guideline for soil reinforcement in such of these cases referred to specific areas of the Mexican Republic characterized by soils that cannot afford huge surcharges done by the wind farm infrastructure as for the case of the Santa Cruz wind farm project, exposed hereby.

 

 

 

 

Keywords:
 Soil Reinforcement, Unpaved roads, Geogrids, Platfom reinforcement, Wind Farm