Project Description
Sector: Buildings
Client: Amarilo
Bogotá, Colombia
Project details:
As part of the QUORA – Plan Proscenio development, GEO carried out a bidirectional load test using Osterberg Cells to validate and optimize the design of the project’s deep foundations, which were primarily designed to transfer loads through skin friction in Bogotá’s characteristic soft soils.
For the test, a 2.80 × 1.00 m barrette, 90.5 m deep, was constructed and equipped with two levels of O-Cells, providing a total load capacity of up to 4,500 tonnes.
The works presented a significant technical and logistical challenge: excavation was carried out continuously for 57 hours, with strict verticality control throughout the process.
The barrette incorporated 53 tonnes of reinforcement steel and equipment, required 304 m³ of low-carbon concrete, and involved five critical lifting operations to complete the installation of the reinforcement cage.
Successfully completed in February 2023, the test made it possible to assess end-bearing resistance and skin friction separately at different depths, providing key data to optimize the foundation design for the QUORA project.
The first O-Cell test carried out in Colombia on a record-breaking 90.5 m-deep barrette, helping optimize both the foundation design and construction method for the QUORA project.
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