Relationship Between Erodibility and Properties of Soils

Briaud, J-L; Shafii, Iman; Hc, Chen; Medina-Cetina, Zenón

doi:10.17226/25470

Cited by 7 publications

(5 citation statements)

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“…Additional research has attempted to correlate basic soil physical properties with erodibility parameters obtained from JETs analyzed using the excess shear stress model (Julian and Torres, 2006;Wynn and Mostaghimi, 2006;Daly et al, 2016;Mahalder et al, 2018b;NASEM, 2019). The objective of this research is to make it possible to estimate erodibility parameters when basic soil characteristics are known without the need for conducting a JET.…”

Section: Using Erodibility Parametersmentioning

confidence: 99%

“…he Jet Erosion Test (JET) is a device used to evaluate the erodibility of cohesive soils in field or laboratory conditions by measuring the scour versus time response to a submerged water jet impinging normally against the soil surface. The JET was originally developed and tested by Hanson (1990Hanson ( , 1991 and has become one of the most used instruments for quantifying cohesive soil erodibility (NASEM, 2019;Wahl, 2021). The JET has been used for quantifying the erodibility of streambanks, levees, earthen embankments, gullies, and hillslopes (Allen et al, 1999;Simon et al, 2000;Wynn et al, 2008;Hanson, 2019;Wahl, 2019;Fox, 2019a).…”

mentioning

confidence: 99%

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Perspective: Lessons Learned, Challenges, and Opportunities in Quantifying Cohesive Soil Erodibility with the Jet Erosion Test (JET)

Fox¹,

Guertault²,

Castro‐Bolinaga³

et al. 2022

Journal of the ASABE

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HighlightsThe JET is a key instrument for in situ and laboratory measurement of soil erodibility.Operation and reporting guidelines are needed to ensure consistency across JETs and applications.JET design improvements and hydrodynamic studies are needed to inform proper analyses and limit operator effects.Erodibility databases should be developed that report JET, soil, and fluid properties. Keywords: Cohesive soils, Critical shear stress, Erodibility, Erosion, Jet Erosion Test, Scour.

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Section: Using Erodibility Parametersmentioning

confidence: 99%

mentioning

confidence: 99%

Perspective: Lessons Learned, Challenges, and Opportunities in Quantifying Cohesive Soil Erodibility with the Jet Erosion Test (JET)

Fox¹,

Guertault²,

Castro‐Bolinaga³

et al. 2022

Journal of the ASABE

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“…Also, running PSTD/ISTD in soils that have wood pieces and coarse-grained material, even if possible, may provide erroneous results. The groundwater elevation (GWE) is important in site selection because saturated soils erode consistently and represents the condition of the soil during erosion (6). Dry samples have a tendency to slake during erosion tests, where the clay essentially disintegrates when exposed to water.…”

Section: Proximity To a United States Geological Survey (Usgs) Stream...mentioning

confidence: 99%

“…The number of boring samples that must be drilled is determined by the number of tests that must be performed. It is ideal to drill one boring for conducting ex situ scour testing device (ESTD) (6) or erosion function apparatus (EFA) (10) tests. The EFA and ESTD are performed in the lab to measure erodibility characteristics for erosion studies.…”

Section: Field Testing and Coordination Planningmentioning

confidence: 99%

Multi-Criteria Assessment of Bridge Sites for Conducting PSTD/ISTD: Case Histories

Osouli

Ebrahimi

Alzamora

et al. 2022

Transportation Research Record: Journal of the Transportation R

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The Federal Highway Administration (FHWA) has recently developed the Portable Scour Testing Device (PSTD) to improve scour analysis around bridge piers in cohesive soils as part of the NextScour project. The PSTD is a compact field erosion testing device that, apart from a drill rig and larger water pump, has a lot of similarity with the In-situ Scour Testing Device (ISTD) in mechanism and data acquisition. The purpose of this paper is to provide recommendations on the suitability of using PSTD and ISTD at sites that have cohesive subsurface soils. An overview of the capabilities and limitations of the PSTD/ISTD in relation to hydraulic considerations, soil types, depth coverages, and erodibility potential is given. A multi-criteria assessment methodology to evaluate site suitability for conducting PSTD/ISTD is presented. The assessment methodology was utilized to detect suitable sites among 30 Illinois bridge sites using soil layer information, boring locations, groundwater level readings, in-situ testing results, geospatial analysis, site accessibility, and aerial photos.

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“…Along this gradient, soil is progressively enriched in clay and organic matter and is increasingly bioturbated (Huggett, 2011; Wroth, 1984), increasing soil cohesion and porosity (Famiglietti et al., 1998) with profound consequences for the infiltration and retention of water (Hawley et al., 1983). This downslope evolution in composition is expected to substantially change soil mechanical properties, and indeed several studies have observed differences in shear/compressive strength (Paaswell, 1973; Saravanan et al., 2020) and erodibility (Briaud et al., 2019; Bryan, 2000) of soil as a result of variation in composition. There are, however, no systematic studies of downslope changes in soil strength that we know of.…”

Section: Introductionmentioning

confidence: 99%

Downslope Weakening of Soil Revealed by a Rapid Robotic Rheometer

Ruck,

Wilson,

Shipley

et al. 2024

Geophysical Research Letters

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Moving down a hillslope from ridge to valley, soil develops and becomes increasingly weathered. Downslope variation in clay content, organic matter, and porosity should produce concomitant changes in soil strength that influence slope stability and erosion. This has yet to be demonstrated, however, because in situ measurements of soil rheology are challenging and rare. Here we employ a robotic leg as a mechanically sensitive and time‐efficient penetrometer to map soil strength along a canonical temperate hillslope profile. We observe a systematic downslope weakening, and increasing heterogeneity, of soil strength associated with a transition from sand‐rich ridge materials to cohesive valley bottom soil aggregates. Weathering‐induced changes in soil composition lead to physically distinct mechanical behaviors in cohesive soils that depart from the behavior observed for sand. We also demonstrate the promise that legged robots may use their limbs to sense and improve mobility in complex environments, with implications for planetary exploration.

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Relationship Between Erodibility and Properties of Soils

Cited by 7 publications

References 0 publications

Perspective: Lessons Learned, Challenges, and Opportunities in Quantifying Cohesive Soil Erodibility with the Jet Erosion Test (JET)

Perspective: Lessons Learned, Challenges, and Opportunities in Quantifying Cohesive Soil Erodibility with the Jet Erosion Test (JET)

Multi-Criteria Assessment of Bridge Sites for Conducting PSTD/ISTD: Case Histories

Downslope Weakening of Soil Revealed by a Rapid Robotic Rheometer

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