TeachMeFinance.com - explain Springline
Springline The term 'Springline' as it applies to the area of reclamation can be defined as ' An imaginary horizontal reference line located at midheight, or halfway point, of a circular conduit, pipe, tunnel, or the point at which the side walls are vertical on a horseshoe-shaped conduit. Also the maximum horizontal dimension or diameter of a circular conduit, pipe, or tunnel. The meeting of the roof arch and the sides of a tunnel. The guideline for laying a course of bricks'.
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