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Mr. Boxy

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Why are wells round?


3466 day(s) ago

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angelina
Anyone knows the answer why sun is round?
But your question is nice.



Posted 3440 day ago

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sweety
well are alwayse dig by drilled machion. that's why well are always round shape.

Posted 3444 day ago

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cabbagehead
Have you ever tried digging a square hole?

Hand-dug wells are a lot easier to dig in a round shape. Before mechanization, well diggers would suspend themselves by a board attached to a rope, which was attached to a tripod above the hole. To make the hole they simply spun around on the rope, digging in until their arms reached out a certain distance. When the well was finished, a stone wall could be built around the inside above the bedrock layer, forming two arches. This compresses the stones equally, creating a very strong structure.

Modern wells are drilled using giant drill bits, like this:

The rotary action of the drill makes the hole round. Once complete, the well can be lined with pipe to create the same arch effect as the stone walls in older wells. Since no one has to go inside the well, the hole can be a lot smaller.

Posted 3466 day ago

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