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Thus, the total volume of the silts and clays is reduced, resulting in the lowering of the surface. The damage at the surface is much greater if there is differential settlement, or large-scale features, such as sinkholes and fissures. Aquifer compaction is a significant concern along with pumping-induced land subsidence.
In modern times, areas known to have quick clay deposits are commonly tested in advance of any major human development. It is not always possible to entirely avoid building on a quick clay site, although modern engineering techniques have found technical precautions which can be taken to mitigate the risk of disaster.
The City of Chicago then gave permission to install the new pilings 3.5 feet (1.1 m) south of the old pilings. The crew members who began work at the site did not know that beneath the river was an abandoned Chicago Tunnel Company (CTC) tunnel that had been used in the early 20th century to transport coal and goods. One of the pilings on the ...
And, yes, sinkholes are often weather dependent. “Sinkholes of the South Jersey variety can happen anytime,” Maillet said. “Water infrastructure is particularly sensitive to freezing ...
That same sinkhole reopened for a third time last year, and was 19 feet wide at its largest point. Firefighters measure a sinkhole that swallowed a vehicle in front of a high school in Ventura ...
The difference between these two concepts is subtle but important. The landslide causes are the reasons that a landslide occurred in that location and at that time and may be considered to be factors that made the slope vulnerable to failure, that predispose the slope to becoming unstable. The trigger is the single event that finally initiated ...
"We encountered some sinkholes," he said. "We encountered some unknown utilities that had to be moved, relocated, adjusted." Construction on the intersection of Campbell Avenue and Republic Road ...
Environmental impact of mining can occur at local, regional, and global scales through direct and indirect mining practices. Mining can cause erosion, sinkholes, loss of biodiversity, or the contamination of soil, groundwater, and surface water by chemicals emitted from mining processes.