Description: The theoretical basis of how grout, i.e., concrete, pumped into rock fractures prevents the caving of underground tunnel and cavity roofs is presented, and the calculation of how much grout material must be injected to lift a dome and create a useful rubble stope in an underground cavity is described. (LCL)
Date: January 1, 1977
Creator: Colgate, S.A.; Petschek, A.G.; Browning, R.V. & Bowers, N.K.
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Partner: UNT Libraries Government Documents Department