Filter Well

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Filter Well

 

a drainage device in the form of a borehole equipped with a filter and drilled from the surface of the ground to an underground mining excavation. Water entering the filter well flows to the excavation by gravity, enters a drainage ditch or a collector pipe, and flows into the mine’s catchment area. Filter wells are used to drain mine shafts and quarries.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.