2020
DOI: 10.1139/cgj-2018-0278
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Mobility of dry granular flows of varying collisional activity quantified by smart rock sensors

Abstract: Highly-instrumented particles (i.e. “Smart Rocks”) were included in monodisperse dry granular landslide experiments to quantify the collisional nature of such flows, and to investigate the influence of collisional flow on the mobility of landslides. The total number of particles comprising a constant source volume of 0.4 m3 was varied by filling the volume with monodisperse particles of nominal diameters of 3 mm, 6 mm, 13 mm, or 25 mm. Successively raising the total particle count resulted in flows that were i… Show more

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Cited by 9 publications
(8 citation statements)
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“…The physical properties of a representative sample of 30 beads were measured and tabulated by Coombs et al. (2019). The beads were found to have an average diameter of 3.85 mm, grain sphericity of approximately 95%, and grain density of 2,241 kg m −3 .…”
Section: Experimental Setup and Methodologymentioning
confidence: 99%
See 1 more Smart Citation
“…The physical properties of a representative sample of 30 beads were measured and tabulated by Coombs et al. (2019). The beads were found to have an average diameter of 3.85 mm, grain sphericity of approximately 95%, and grain density of 2,241 kg m −3 .…”
Section: Experimental Setup and Methodologymentioning
confidence: 99%
“…These beads were chosen for their pseudospherical shape, relatively uniform diameter, and ability to be reused for multiple trials with minimal breakdown. The physical properties of a representative sample of 30 beads were measured and tabulated by Coombs et al (2019). The beads were found to have an average diameter of 3.85 mm, grain sphericity of approximately 95%, and grain density of 2,241 kg m −3 .…”
Section: Materials and Preparationmentioning
confidence: 99%
“…Dams were constructed in the 36 m long horizontal portion of the Queen's University Landslide Flume (e.g., Bullard et al., 2019; Coombs et al., 2020; Miller et al., 2017). The crest of the dam was positioned upstream of the midpoint of the horizontal portion of the flume to create a larger volume downstream of the dam than upstream (Figure 2).…”
Section: Experimental Methods and Materialsmentioning
confidence: 99%
“…The solid material selected for granular flow experiments is the 3 mm nominal size Denstone® 2000 Support Media provided by Saint-Gobain Norpro, a product of ceramic pseudo-spheres with an average grain size of δ = 3.85 mm; this product, which has previously been used in Raymond [22], Coombs [23], Taylor-Noonan, et al [24], is considered suitable for multiple test runs due to its hardness (ensuring particle characteristics do not change between tests), roughness (not explicitly measured but particles are rough to the touch), sphericity and uniformity. The particle size was also chosen to ensure that excess pore pressure (above hydrostatic) would be unlikely to be produced in wet or saturated tests.…”
Section: Methodsmentioning
confidence: 99%