One of the reasons why triaxial testing is so common is because of its versatility. Licensed under CC BY-SA 3.0, via Wikimedia Commons.Ī triaxial test obtains the shear strength parameter measurements needed for a construction project. This popular tourist destination was built on softer ground (clay, sand, and shells), which shifted over time and caused the tower to lean off-kilter. Just look at what happened to the Tower of Pisa. Even if the soil seems stable at first, the construction process can subject it to shifts and uneven settlements later on. The mechanical behavior of a rock, sand, or soil sample can be complicated to analyze, depending on the specimen. This test measures stresses in three mutually perpendicular directions. Triaxial testing is a method used to determine the stress-strain properties of soils by subjecting soil samples to constant lateral pressure while increasing vertical pressure. To better understand the mechanics of soil and improve a structure’s stability, you can model the loading and unloading curves for a triaxial testing apparatus and test the soil’s model parameters in the COMSOL Multiphysics® software. Performing triaxial tests before, during, and after construction helps to ensure that structures are safe and reliable. The foundation of a tunnel, dam, building, or other structure can be analyzed with a method called triaxial testing.
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