Miami's barrier islands are facing a significant challenge as over 30 skyscrapers have been found sinking into the ground.
This alarming issue has been documented in a recent study conducted by researchers at the University of Miami, which highlights the urgent need for monitoring and intervention.
The Study's Findings
The study, which spanned from 2016 to 2023, utilized Interferometric Synthetic Aperture Radar (InSAR) technology to measure minute changes in the ground level.
Researchers discovered that 35 buildings, including luxury condos and hotels, have sunk by as much as eight centimeters.
The affected buildings are located in population centers such as Miami Beach, Surfside, Bal Harbour, and Sunny Isles Beach.
Causes of Subsidence
The primary cause of this subsidence is attributed to construction activities, which have led to the compaction of soil particles and the sinking of the ground.
The study found that buildings constructed after 2014 are particularly susceptible to this issue. Additionally, the inconsistent layers of limestone and natural groundwater movements have contributed to the sinking.
Implications for Structural Integrity
While some degree of settlement is expected during and immediately after construction, the continued sinking over several years poses a significant risk to the structural integrity of these buildings.
Differential settlement, where parts of the ground sink at uneven rates, can induce internal stresses that may lead to structural damage. This issue is particularly concerning in light of the 2021 collapse of the Champlain Towers South in Surfside, which tragically killed 98 people.
Affected Buildings
Among the affected buildings are notable structures such as the Porsche Design Tower, Faena Hotel, and Trump Tower III.
The study found that about 70% of the sinking buildings are located in northern and central Sunny Isles Beach, with approximately 23% of these structures built in the past decade.
Call for Action
The findings underscore the need for ongoing monitoring and a deeper understanding of the long-term implications for these structures.
Researchers emphasize the importance of implementing measures to mitigate the effects of subsidence and ensure the safety of residents and visitors.
Conclusion
The sinking of skyscrapers on Miami's barrier islands is a pressing issue that requires immediate attention.
As the city continues to grow and develop, it is crucial to address the underlying causes of subsidence and implement strategies to protect these iconic buildings. By doing so, Miami can ensure a safe and sustainable future for its residents and visitors.
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