...M. Li; R. J. Fannin; M. Foster; L. Yan Internal stability ( IS ) erosion tests were conducted on broadly graded materials to better understand the effect of the scalped-and-replaced method of removing oversize particles on IS erosion testing. Four gradations (three internally unstable and one...

...B. de C. F. L. Lopes; M. R. Chrusciak; V. do V. Ramos; V. C. V. Cavalcanti; I. J. V. C. César This study investigates an innovative application of microbial-induced calcium carbonate precipitation (MICP) for enhancing erosion control on unpaved roads, leveraging the unique capabilities of native...

... hydraulic gradients and three surcharge pressures using a large-scale high-pressure erosion apparatus. The total eroded mass, erosion rate and skeleton deformation were comparatively analysed, and the mesoscopic mechanism was discussed preliminarily. The results showed that the hydraulic gradient affected...

... & Fannin, 2006 ; Wan & Fell, 2008). However, this approach is limited to a local observation depending on the position and spacing of the transducers/standpipes making it impossible to capture local heterogeneities within the sample. erosion fabric/structure of soils laboratory tests...

... calcareous soils earth pressure erosion Chemical weathering is known to be detrimental to the stability of natural systems (e.g. erodible coastal environments and seismogenic faults), as well as for the performance of man-made geotechnical structures (e.g. nuclear waste disposal facilities...

...J. Prasomsri; T. Shire; A. Takahashi Internal instability or suffusion is one of the mechanisms of internal erosion in cohesionless soils, which is described by the loss of integrity of soil by seepage flow and is associated with the migration of finer particles. The contribution of the non-plastic...

...Jaromír Říha; Lubomír Petrula; Mario Hala Heave is a type of deformation that occurs due to seepage, which may evolve into backward erosion piping and eventually lead to the total collapse of a hydraulic structure. It may occur downstream of the hydraulic structure when uniform non-cohesive soil...

... coastal erosion in shallow waters. A set of six sand samples sloped at 45° was prepared in an acrylic flume apparatus and tested against erosional and accretional surging waves, and the results showed that MICP was able to limit soil erosion to less than 5% for both wave types. Bio-cementation...

... of clays and its engineering implications . Transp. Res. Rec., J. Transp. Res. Board   2101 , 34 – 43 . Nugent , R. A. , Zhang , G. & Gambrell , R. P. (2010). The effects of exopolymers on the erosional resistance of cohesive sediments . In Proceedings of scour and erosion (eds...

...(a)). Fig. 3. Flow pulses: (a) targeted (simulated) and applied flow signals; (b) variations of the applied flow pulses Seepage-induced fines migration, also known as internal instability or suffusion, is a typical internal erosion mechanism found in non-plastic (granular) soils (Fannin...

... impacting the mechanical behaviour of eroded soil. Although limited research has been conducted on the post-erosion mechanical consequences under monotonic shearing, little attention has been paid to the impact of suffusion on the cyclic resistance and liquefaction potential of internally unstable soils...

... rights reserved 2018 erosion ground improvement industrial wastes At higher concentrations (i.e. 1%), GG exhibits thixotropic behaviour, resulting from the complex surface attractions. It can also be interpreted that the higher concentrations of the biopolymer could have shown positive...

...·5GB35 6·5 GB-F GB-C3 0·35 7·0BT35 7·0 BT-F BT-C3 0·35 30 06 2016 15 11 2016 16 11 2016 ICE Publishing: all rights reserved 2016 dams erosion fabric/structure of soils laboratory tests Seepage-induced internal instability is one of several...

... was reduced due to suffosion, leading to an alternation of preferred coarse particle orientations in the observation field. 19 03 2015 14 05 2015 28 05 2015 ICE Publishing: all rights reserved 2015 erosion fabric/structure of soils microscopy seepage It is known...

...… The skeleton ‘remains stable’ Erosion ‘For pure sand or only small amounts of the gravel component this [deformation] phenomenon is known as piping by heave, whereas mixtures with a higher amount of coarser particles show the phenomenon of erosion piping. Erosion leads to collapse of the mixture...

...H. Rönnqvist; J. Fannin; P. Viklander A database of 80 embankment dams has been compiled that includes 23 dams that are reported to have experienced some form of internal erosion. An assessment is made of the potential for seepage-induced internal instability of the filter zone in all dams, using...

... have a light colour (a high intensity). When fine grains are removed from an area, the second image has a lower intensity value due to the darker matrix grains. Accumulation of fine particles results in higher intensities. Subtraction results in positive values (white) for erosion and negative values...