Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hashiba Hirofumi and Maeda Kenichi and Naito Naoto and Yamaguchi Satoru and Ushiwatari Yuji and Suzuki Kentarou and Kawase Ryoji,Impact force propagation behaviors of rock into horizontal granular mat with different falling conditions using 2D- DEM,"Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))",2185-4661,Japan Society of Civil Engineers,2012,68,2,I_443-I_454,https://cir.nii.ac.jp/crid/1390282680326521728,https://doi.org/10.2208/jscejam.68.i_443