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METHOD OF PROTECTING UNDERGROUND WORKINGS IN SALT DEPOSITS, IN PARTICULAR POST-EXTRACTION VOIDS WHILE MINING SALT THROUGH BORE-HOLES, AGAINST EFFECT OF SURROUNDING ROCK FORMATIONS
METHOD OF PROTECTING UNDERGROUND WORKINGS IN SALT DEPOSITS, IN PARTICULAR POST-EXTRACTION VOIDS WHILE MINING SALT THROUGH BORE-HOLES, AGAINST EFFECT OF SURROUNDING ROCK FORMATIONS