CONSTRUCTION OF STRUCTURE ON REINFORCED SOIL OF 8 METERS HIGH IN FUNCTIONAL UNIT 1. K36+090 REMEDIOS ROAD PROJECT – ZARAGOZA
Functional Unit 1 comprises the section of road between the municipality of Remedios and the municipality of Zaragoza, where a new 58-kilometer-long road was constructed. Functional Unit 1 begins in the El Llano de Córdoba sector in the municipality of Remedios (Km 0+000) and ends at Km 58 near the urban area of Zaragoza. The reinforcement of the embankment with uniaxial geogrids was key to stabilizing this road.
The site of interest corresponds to the section located in the area known as “El Cenizo” in the municipality of Zaragoza, between the abscissas K36+000 and K36+130 of Functional Unit 1.
Problem:
In this section, an embankment for the road was constructed, and work proceeded without interruption, in compliance with the project's defined technical specifications, until its construction is completed in October of 2020.
After it was built, serious cracks appeared in the middle of the heavy rainy season during the months of October through December 2020, which necessitated new designs, for which the following activities were carried out: geological and geotechnical site investigation, field tests, and detailed engineering analyses.
Panoramic view of the embankment affected by the landslide
Cross-section showing the geotechnical model of the embankment at the landslide sector
In order to carry out the new construction work, it was necessary to dismantle the original embankment, in where the magnitude of the cracks associated with a large movement of landslides caused by the presence of groundwater in the foundation.
Suggested Design
The embankment was designed to be reinforced with uniaxial geogrids. FORTGRID UX
Construction Process
Major infrastructure projects were implemented for water collection and management surface that carry the waters to a new sewer that crosses the body of the embankment, as well as an efficient system for subdrain.
Construction Process
Major infrastructure projects were implemented for water collection and management surface that carry the waters to a new sewer that crosses the body of the embankment, as well as an efficient system for subdrainage.
Construction Process
The construction of the wall's facade using recessed courses can be seen filled with the soil used to form the wall.
View of the retaining wall made of soil reinforced with geogrids. Observe the construction of the culvert designed for the surface water management
The sewer is confined within the structure of reinforced soil retaining wall