Controlled grout columns: a point-support technique for mine subsidence abatement.
By: P. R. Michael, A. S. Lees, T. M. Crandall and J. L. Craft.
Contributors: Lees, A. S; Crandall, Thomas M.; Craft, Jesse L.
Publisher: s.n
Published: 1988
Place of publication: S.l
Notes: Page 401 (Poster Session Abs.) in Proc. Conf. Mine Drainage and Surface Mine Reclamation, Vol. II: Mine Reclamation, Abandoned Mine Lands and Policy Issues. Pittsburgh, PA. USDI Bur. of Mines. Inf. Circ. 9184. 401pp.

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