Results 211 to 220 of about 417,251 (262)

A Stress-controlled Erosion Apparatus for Studying Internal Erosion in Soils

Geotechnical Testing Journal, 2011
Abstract Suffusion in soil involves selective erosion of fine particles within the matrix of coarse soil particles under seepage flow. Such loss of fine particles affects the hydraulic and mechanical behavior of the soil. In this study, a stress-controlled erosion apparatus was developed to investigate the initiation and development of ...
Chang, Dongsheng, Zhang, Li Min
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Embankment Breach Research: Observed Internal Erosion Processes

Transactions of the ASABE, 2021
HighlightsThis study provides data from internal erosion tests on four intermediate-scale homogeneous embankment dams.Soil properties influence the breach formation process and breach timing.Results showed that observed erosion rates of the internal flow path varied by several orders of magnitude.Quality control of embankment construction can greatly ...
Abdelfatah K. Ali, Sherry L. Hunt, Ronald D. Tejral   +2 more
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News: ICOLD bulletin on internal erosion

Dams and Reservoirs, 2011
Internal erosion is one of the main causes of incidents at dams in service, accounting typically for around 50% of dam failures. This article describes the status and content of forthcoming International Commission on Large Dams (ICOLD) bulletins on internal erosion.
Rod Bridle, Alan Brown
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Progress in assessing Internal Erosion

2008
The European Working Group on Internal Erosion presented its Interim Report at the 7th European Conference on dams in Freising in Germany in September 2007, this being the culmination of interactions which had commenced in 2004. This paper summarizes the main technical outcomes from the working group.
A.J. Brown, R.C. Bridle
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Defra research into Internal Erosion

2008
This paper summarises the background to, and the key findings and conclusions from, two Defra research projects on internal erosion. It then discuses the practical implications for dam owners and panel engineers in terms of monitoring and surveillance.
A.J. Brown, J.D. Gosden
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Internal Erosion in Dams: Studies and Rehabilitation

International Journal of Civil Engineering, 2018
In embankment dams, filters/drain systems constitute a first line of defense against the phase of continuation of erosion. It is generally assumed by several authors that the continuation of internal erosion can be prevented using adequate granular filters in areas where important hydraulic gradients may develop. This paper addresses the most important
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Mechanical consequences of internal soil erosion

HKIE Transactions, 2014
Internal erosion sometimes occurs in dams and slopes. Under seepage, fine particles in soil may migrate through the pores formed by the coarse matrix. The mechanical properties of the soil may then change due to the loss of fine particles. Extensive laboratory tests are conducted in this research to study the shear strength of a dense, internally ...
Chang, Dongsheng, Zhang, Limin, Cheuk, Johnny   +2 more
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Estimation of soil internal erosion potential

Computers and Geotechnics, 1988
Abstract Probability that the grains of cohesionless soil in an investigated range of grain diameters can be eroded from a volume of soil by the groundwater flow force is estimated using a two-person zero-sum game theory. The estimation of probability of erosion of soil grains is based on the two dimensional model of a soil structure, which is ...
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Internal erosion in gas-flow weak conditions

AIP Conference Proceedings, 2010
We present a continuum‐based formulation of volumetrical erosion phenomena in gas‐flow formations. The investigated model is based on a so‐called hybrid three‐phase mixture formulation, i.e. a superimposed continuum consisting of a solid matrix, the compressible pore gas and the fluidized/eroded particles.
Holger Steeb, Joe Goddard, Pasquale Giovine, James T. Jenkins   +3 more
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Experimental Evaluation of Internal Erosion Using Groove Erosion Test

International Journal of Geomechanics, 2022
Ishant Sharma, Alice Thomas
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