Urban heat islands can be felt deep under the surface—creating a sneaky threat to infrastructure.
sought to assess whether subsurface heat islands can cause ground deformations. These deformations would go on to affect the performance of civil infrastructure.
Potentially excessive angular distortion, tilting, and/or cracking of structural members may affect the aesthetic and operational requirements of infrastructure. Luckily, these changes don’t necessarily represent an impact on their performance and don’t threaten people’s safety, says Rotta Loria.Extreme changes in underground temperature under or near infrastructure impose temperature gradients that can promote pore water movement.
The impact is generally related to the soil type and the extent of drying or wetting, among other factors. For instance, sandy materials are not as prone to large deformations under climatic change conditions, unlike clay-heavy soils, says Zapata.
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