Excavation
 
Excavation

Deep Excavation

Deep excavation is just what it sounds like - excavation specialized to dig and shape forms for structures requiring deep holes. Ponds & industrial foundations (think skyscrapers, which need very deep, stable bases) are a good example of the sort of structures requiring the unique methods deep excavation is known for. Other uses for deep excavation include the formation and construction of mine shafts.

Due to the nature of the process, deep excavation is most often accomplished through the use of explosives and other demolitions. Deep excavation can sometimes cause structural instability, most notably when the excavation is performed by those who are inexperienced, or when the natural stability of the surrounding area / excavation site is flawed. This instability is the main reason for such accidents as cave-ins and the collapse of mines.

In technical terms, deep excavation is any sort of excavation which reaches more than 15 feet into the earth. It comes in multiple types, including open, which simply means a hole in the earth dug to a depth of more than 15 feet which is kept intact by the natural slope of its walls, to retained, which involves structural support, and is usually reserved for areas of some population, or for environments in which people are to work, such as mines.

As space becomes more and more of a premium, deep excavation becomes more widely utilized. As has been previously stated, the basements of skyscrapers provide vital stability, and are prime examples of deep excavation in practical use. Dams, or rather the construction process that allows for the placing of a dam, are also good examples of the strengths of deep excavation, without which the bedrock and surrounding terrain could not be suitably manipulated.

While most examples of deep excavation are man-made, there are natural occurrences which can readily be seen by anyone who cares to view them. Perhaps the best example known to American readers is the Grand Canyon, which was formed over millions of years by the continuous erosion of the Earth by what is now the Colorado River. Another, perhaps less-obvious example of deep excavation at the hands of natural forces is the Chicxulub crater. This 3,000 foot deep, 12-mile wide chasm is what scientists believe is all that remains of the asteroid which is responsible for the extinction of the dinosaurs (and something like 98% of all other life on earth at that time).

As you can see, deep excavation has the potential to both aid and destroy life - at its core, deep excavation is nothing more than the removal of large, deep sections of the Earth. Whether used to build the next block of high-rise penthouses, a bauxite mine, or as the catalyst for a new stage in evolution, deep excavation is truly a remarkable force. Thankfully, there haven't been too many asteroid collisions in the past hundred years, but the scientific community says we're overdue… so if you're smart, you'll call that deep-excavation contractor ASAP, and get that pool put in! Who knows how many more summers you'll have to use it?

Back to Top