Shock absorbing of sand cushion against rockfall impact force with DEM

DOI

Bibliographic Information

Other Title
  • 敷砂の落石衝撃力緩衝効果に関するDEMシミュレーション

Abstract

Cushioning materials, such as granular mats and sand cushion placed on rock sheds, are attracting attention as construction device that can effectively disperse and reduce rock fall energy before rocks collide with protection works. In this paper, we show influence on impact force transmission mechanism of sand cushion by rock fall condition with DEM. Consequently, we confirmed it is important the presence of stress wave which elaborately transmit and reflect in the sand cushion to occur impact force. And there is some possibility maximum impact force strength is affected by velocity change of early period of penetration. 

Journal

Keywords

Details 詳細情報について

  • CRID
    1390001205591696640
  • NII Article ID
    130004605073
  • DOI
    10.11345/japannctam.62.0.246.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

Report a problem

Back to top