Title |
A Study on Development of Anti Washout Underwater Filling Material in and Application of the Economical Filling Method for Reinforcement of Underground Cavities |
Keywords |
석회공동 ; 폐광산 ; 석분토 ; 충전재 ; 수중불분리 ; 경제성 ; Limestone cavity ; abandoned mine ; rock-dust ; filling material ; anti washout underwater ; economical efficiency |