@article{oai:muroran-it.repo.nii.ac.jp:00009762,
 author = {山口, 悟 and YAMAGUCHI, Satoru and 木幡,  行宏 and KOHATA, Yukihiro and 小室,  雅人 and KOMURO, Masato and 内藤, 直人 and NAITO, Naoto and KISHI,  Norimitsu and 岸, 徳光},
 journal = {構造工学論文集. A, Journal of structural engineering. A},
 month = {Mar},
 note = {application/pdf, In order to establish a performance-based design procedure for rock-sheds, material properties of the cushion layer in situ were investigated and large-scale falling-weight impact test for gravel cushion which is applied for many existing rock-sheds was conducted varying thickness of cushion material and falling high of the weight as variables. The results obtained from this study were as follows: 1) not only sand cushion but also gravel cushion were used for many existing rock-sheds and the cushions were under strongly compacted; 2) in the cases of same impact energy but different mass of weight, those penetration depths of weight were a little different but maximum impact forces were almost the same each other; and 3) maximum weight and transmitted impact forces in the case of gravel cushion were two to four times greater than those in the case of sand cushion.},
 pages = {983--995},
 title = {敷砂あるいは砕石緩衝材の緩衝特性に関する大型重錘落下衝撃実験},
 volume = {60},
 year = {2014},
 yomi = {ヤマグチ, サトル and コハタ, ユキヒロ and コムロ, マサト and キシ, ノリミツ}
}