Jun 5, 2023 · Potential sinkholes in an urban area were assessed using a multi-geophysical survey. GPR revealed interfaces between different strata and the karst fissure distribution. ERT and CHERT delineated groundwater runoff zones and potential sinkhole areas.

Jul 1, 2020 · This work illustrates the practicality of a non-invasive approach, combining detailed mapping, ground penetrating radar (GPR), and high-precision leveling, for the characterization at different time scales of the ground deformation associated with an …

Sep 6, 2024 · Urban areas like NYC, Minneapolis, and Philadelphia face sinkhole risks from aging infrastructure and porous limestone. Cities like Fountain, plus many others, are at high risk due to karst topography and soluble rocks.

Dec 14, 2017 · This present work explores the practicality of the trenching technique for the investigation of sinkholes in an urban area and compares its performance with two commonly used geophysical methods; GPR and ERT.

Aug 24, 2024 · While sinkholes can occur naturally, they are often exacerbated by human activities, particularly in urban environments. 1. Natural Processes: - Erosion and Weathering: Over time, the...

Jun 9, 2018 · A sinkhole is an area of ground that has no natural external surface drainage--when it rains, the water stays inside the sinkhole and typically drains into the subsurface. Sinkholes can vary from a few feet to hundreds of acres and from less than 1 to more than 100 feet deep.

Oct 30, 2024 · True geologic sinkholes are defined and discussed as well as other conditions often called sinkholes by laypersons. In this presentation, the distribution of geologic areas within the continental United States conducive for sinkhole development will be discussed.

When sinkholes occur in urban areas they can result in the partial and complete collapse of over ground structures in damages to infrastructure, cause high economic losses, evacuation and displacement of residents and can in some rare cases lead to the loss of lives.

5 days ago · Sinkholes pose a risk to sources of drinking water because they can let surface pollutants into groundwater. According to a 2020 study, contaminants from urban runoff and agriculture can degrade groundwater quality in sinkhole-prone areas like Florida and Texas, endangering public health. The significance of keeping an eye on the water quality ...

Aug 5, 2024 · Can sinkholes occur in urban areas? Yes, sinkholes can occur in both rural and urban areas. However, the risk and severity of sinkholes in urban areas may be higher due to factors such as underground utilities, excavation, and the presence of buildings and infrastructure.