Land Subsidence Monitoring
- Subheading: Wide Area monitoring, City, Port,..
Long-term land subsidence in Mexico City
Case Study Background
Land subsidence is one of the main hazards in engineering and construction. Urban land subsidence is a worldwide problem, and many cities in the world are susceptible to the dangers that land subsidence causes. Large scale subsidence leads to changes in ground elevation, damage to infrastructure, municipal facilities, and buildings, which poses a threat to the safety and security of the city.
In order to prevent and mitigate the impact and damage caused by land subsidence, it is imperative to establish an effective deformation monitoring and early warning system.
Massive groundwater extraction is common throughout Mexico and is well known to result in land subsidence.
“In 2014, Estelle Chaussard used ALOS data for time series deformation studies, analyzed land subsidence problems throughout Mexico City through SBAS-InSAR technology, and successfully identified land subsidence in 21 regions (including 17 cities). Mexico City has a linear vertical speed of more than 30 cm/year, while other places detect a speed of 5-10 cm/year”. Source: E. Chaussard, S. Wdowinski, E. Cabral-Cano, and F. Amelung, “Land subsidence in central Mexico detected by ALOS InSAR time-series,” Remote Sensing of Environment, vol. 140, pp. 94–106, 2014.
SILLE’s analysis of Mexico City indicates large-scale groundwater extraction in Mexico City which has caused serious above ground subsidence, more than 50 cm (20 inches) within two years. This causes damage to buildings and infrastructure. Ground failure from soil compaction in Mexico City due to urban expansion on high clay content deposits and lacustrine system: severe challenges for civil engineering and hydraulic projects.
SILLE’s value is demonstrated in its ability to consistently and cost-efficiently monitor large areas without the need to install specialist equipment and SILLE offers updated data on a regular basis, which can be compared with in-situ measurements for a comprehensive understanding of the area for operational and maintenance needs as well as evaluating risks.
SILLE Risk & Resource Savings
- Improve understanding of structural and ground motion
- Minimize the costs of corrective efforts through early vulnerability detection
- Efficiently monitor a large area for millimeter movements
- Reconstruct deformation for a better understanding of weaknesses
Relevant news articles:
Wide area monitoring
Tunneling monitoring, Saint Petersburg, Russia Case Study BackgroundMonitoring surface deformation to ensure the stability and safety of the undergro...Read more
Land Subsidence Monitoring
Wide Area monitoring, City, Port,....
Long-term land subsidence in Mexico City Case Study Background Land subsidence is one of the main hazards in engineering and construction. Urban lan...Read more
Landslides, Subsidence, Sinkholes,...
Rattlesnake Hills Landslide Case Background In late 2017 ground disturbances were noticed above a quarry in the Rattlesnake Hills of Yakima County i...Read more
Oil reservoir deformation monitori...
Oil reservoir deformation monitoring in the Tengiz oil field, Kazakhstan. Case Study Background Discovered in 1979, the Tengiz oil field is the sixt...Read more
Mining sites, surrounding infrastr...
Bytom & Chełm Śląski, Poland Case Background Poland mines millions of tons of coal every year accounting for just over half of the country's ene...Read more
Bridges, Roads, Railroads
Hampton Roads Bridge-Tunnel (Rip Raps Island) Case Background The Hampton Roads Bridge-Tunnel (HRBT is the oldest tunnel on Interstate 64 in Hampton...Read more
Oroville Dam Case Background The Orville Dam’s main and emergency spillways were compromised in February 2017 due to heavy rainfall. Erosion damage ...Read more