Effect of soil relative density and the inclination angle on the impact force from a granular sliding mass on a rigid obstruction

Amir Ahmadipur, Tong Qiu

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations

Abstract

The impact force from a granular sliding mass on a rigid obstruction can be used to gain insights into the granular flow; however, such data is remarkably scarce in the literature. In this study, a two-dimensional soil flume was constructed and utilized to measure the impact force from a granular sliding mass on an obstruction instrumented with dynamic load cells in order to systematically study the effects of different factors on the impact force. In this paper, the effects of initial soil density and inclination angle on the impact force were investigated. Results from these experiments showed that in gentle slopes (i.e., low inclination angle) as the initial density increases the impact force decreases. However, in steep slopes (i.e., high inclination angle) when densely packed granular mass flows downslope with high velocity, the flow is similar to the sliding of a less-deformable block and the impact force increases as the initial density increases.

Original languageEnglish (US)
Pages (from-to)294-303
Number of pages10
JournalGeotechnical Special Publication
Issue numberGSP 278
DOIs
StatePublished - Jan 1 2017
EventGeotechnical Frontiers 2017 - Orlando, United States
Duration: Mar 12 2017Mar 15 2017

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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