대형진동삼축시험기를 이용한 암석재료의 동적변형특성에 관한 실험적 연구

An Experimental Study on Dynamic Deformation Properties of Rock Materials using Large Triaxial Testing Apparatus

In order to investigate the dynamic deformation properties of rockfill materials in small strain level, cyclic triaxial tests were conducted using the large cyclic triaxial testing apparatus, which was developed by Water Resources Research Institute of KOWACO in 2001. Two types of rockfill materials consisting of granite and shale-sandstone were tested in this study. The test results show that G/G$\_$max/ of granite specimen decreases more than that of shale-sandstone with the increase of shear strain and the increase ratio in the maximum shear modulus G$\_$max/ of granite is bigger than the ratio of shale-sandstone.