A mine prop is comprised of an elongate tube having a slenderness ratio that
would
generally allow buckling or kneeling of the elongate tube when exposed to a sufficient
axial force. A plurality of elongate support members having a length less than
the elongate tube are attached to the tube to prevent buckling or kneeling of the
elongate tube along the portion of the tube to which the elongate support members
are attached. The portions of the tube that are unsupported by the elongate support
members define one or more yieldable zones proximate at least one end of the tube.
A compressible filler material is disposed within at least portion of the tube
to support yielding in the yieldable zone.
