Experimental investigation of debris-induced loading in tsunami-like flood events

Jacob Stolle, Tomoyuki Takabatake, Takahito Mikami, Tomoya Shibayama, Nils Goseberg, Ioan Nistor, Emil Petriu

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Debris loads during flood events have been well-documented by forensic engineering field surveys of affected communities. Research has primarily focused on debris impact loading and less emphasis has been placed into quantifying the loads and effects associated with debris damming, which occurs when solid objects accumulate at the front of structures. The formation of the debris dam has been shown to results in increased drag forces, backwater rise, and flow accelerations which can influence the stability of the structure. This study examined the formation of a debris dam in steady-state conditions of debris common to flood-prone communities. The study determined that the hydraulic conditions, in particular flow velocity, influenced the formation of the debris dam. Additionally, the study examined the influence of the blockage ratio on the backwater rise as well as the drag coefficient.

Original languageEnglish
Article number74
JournalGeosciences (Switzerland)
Volume7
Issue number3
DOIs
Publication statusPublished - 2017 Sep

Keywords

  • Coastal engineering
  • Debris damming
  • Debris loads
  • Floods
  • Natural disaster
  • Steady-state
  • Tsunami

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

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