Articles | Volume 9, issue 6
Nat. Hazards Earth Syst. Sci., 9, 1835–1843, 2009

Special issue: Rockfall protection – from hazard identification to mitigation...

Nat. Hazards Earth Syst. Sci., 9, 1835–1843, 2009

  10 Nov 2009

10 Nov 2009

Basic rockfall simulation with consideration of vegetation and application to protection measure

H. Masuya1, K. Amanuma2, Y. Nishikawa2, and T. Tsuji3 H. Masuya et al.
  • 1Faculty of Environmental Design, Institute of Science and Engineering, Kanazawa University, Ishikawa, Japan
  • 2Division of Environmental Science and Engineering, Graduate School of Natural Science and Technology, Kanazawa University, Ishikawa, Japan
  • 3Arusu Consultant Co., Ltd., Ishikawa, Japan

Abstract. The estimation of risk due to rockfall is often done empirically. As a rational and effective method towards performance-based design of protection measures, a three-dimensional simulation method helps to describe the motion of rockfall on a slope and to consider the effect of vegetation probabilistically. This document details a typical simulation method and analyses the manner of rockfalls paired with interference of vegetation and other factors. As application, an actual slope is analyzed where rockfall occurred during the Noto Peninsula Earthquake. Finally, the validity and the benefits of the shown method are the basis for a hazard mapping for rockfall and the planning of measures.