![]() When observing Valparaíso from sea to hill, with its slopes and ravines, evidence of different types of retaining walls, according to their different periods of development, can be seen. Pablo Barros)Īfter the fire that occurred in April 2014 -which affected mostly peripheral and socioeconomically vulnerable neighborhoods ( Barrales 2017) - it was easy to compare the damage between those houses close to the belt road, which were built on stabilized floors with retaining walls, to those that were built on land supported only on wooden pillars directly to the ground: the first suffered damage, but not at the level of destruction and collapse that affected the second. Keywords: Retaining wall tires mechanically stabilized earth (MSE) craft construction.įigure 1 Schemes of traditional forms to obtain the horizontal in Valparaíso (Drawings: L. This proposal was submitted to structural calculation according to current engineering criteria, to lastly recommend it as a valid option for containing a horizontal plane with satisfactory building standards. Then, exploratory proposals are developed, which finally settle in a definitive proposal of a retaining wall with mechanically stabilized tires. In the present work, a vision about the state of international, national and local art about retaining wall with tires is shown and examples are presented. In this context, and as the first objective of this research, we identify the opportunity to contain landfills with recycled tire structures. This means a potential replacement of 20,000,000 tires in 4 or 5 years, transforming them into an abundant and environmentally persistent volumetric residue, which accumulates especially in the gorges of Valparaíso. In parallel, Chile has a fleet close to 5,000,000 vehicles ( INE 2017). ![]() Then, the motivation arises to develop inexpensive retaining wall technologies, structurally validated, that can be implemented by people without greater technical knowledge. This issue was a significant factor in the number of homes destroyed. In the last great fire of 2014 that affected Valparaíso, numerous building and structural deficiencies about slope construction were found.
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