... at the water–soil interface by detecting the microstrain in the soil. Consequently, a soil erosion testing device (SETD) is designed to directly measure both the critical shear stress necessary for soil erosion initiation and the erosion rate. The SETD includes a hydrodynamic system, a soil erosion system...

... soil erosion resistance and critical filter substantiation. Erosion characteristics, namely, coefficient of soil erosion, critical shear stress, and erosion rate index, for 17 fine clay/silt core soils are determined via the hole erosion test. Also, the no-erosion boundary filter for each core soil...

... of the structured clay can be divided into three distinct phases of deformation. At low mean effective stress levels, the value of K̇ o ranged between 0.2 and 0.3, and the shear stress varied linearly with strain. A critical shear stress was reached at the end of the first phase of deformation. At intermediate...

...S. M. Fattahi; A. Soroush; P. T. Shourijeh The hole erosion test (HET) is widely performed for determining soil erosion characteristics; viz. critical shear stress, erosion rate coefficient, and erosion rate index. Refinements to measurement/estimation of water head drop in the hole through...

.... The error varies with size of the hole diameter, and is found to be as much as one order of magnitude. 15 09 2011 13 03 2012 01 07 2012 soil erosion critical shear stress piping Pitot-static tube laboratory testing References ASTM D5101–01-2001 , 2006 , “ Standard Test...

... 26 08 2003 dam failure embankment dams piping rate of erosion critical shear stress risk assessment References Arulanandan , K. and Perry , E. B. , 1983 , “ Erosion in Relation to Filter Design Criteria in Earth Dams ,” Journal of the Geotechnical Engineering...

...K Rohan; G Lefebvre; S Douville; J-P Milette The paper presents a laboratory technique to evaluate the erosivity of cohesive soils, which permits, in addition to determining the critical shear stress, the observation of the rate and the mode of erosion throughout the test. The technique is similar...