A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental Bench for Study of Internal Erosion in Cohesionless Soils
Under the internal flow, hydraulic earth structures (dikes, levees, or dams) can incur a migration of particles that can induce a modification of hydraulic and mechanic characteristics. With the objective to characterize this phenomenon named internal erosion and its consequences on mechanical behaviour of granular materials, a large oedopermeameter device is developed. An axial load is applied on specimen and also a downward flow with a constant hydraulic gradient. During the testing time, the bench can measure the spatial variability of density and of interstitial pressure along the specimen. Axial deformation, injected flow and eroded mass are also measured during the testing time. Erosion of fine particles on downstream specimen part is accompanied by fine particles migration in the specimen. This migration induces a settlement and an increasing of interstitial pressure. Afterwards a localized instability appears and triggers specimen deformation.
Experimental Bench for Study of Internal Erosion in Cohesionless Soils
Under the internal flow, hydraulic earth structures (dikes, levees, or dams) can incur a migration of particles that can induce a modification of hydraulic and mechanic characteristics. With the objective to characterize this phenomenon named internal erosion and its consequences on mechanical behaviour of granular materials, a large oedopermeameter device is developed. An axial load is applied on specimen and also a downward flow with a constant hydraulic gradient. During the testing time, the bench can measure the spatial variability of density and of interstitial pressure along the specimen. Axial deformation, injected flow and eroded mass are also measured during the testing time. Erosion of fine particles on downstream specimen part is accompanied by fine particles migration in the specimen. This migration induces a settlement and an increasing of interstitial pressure. Afterwards a localized instability appears and triggers specimen deformation.
Experimental Bench for Study of Internal Erosion in Cohesionless Soils
Marot, D. (author) / Sail, Y. (author) / Alexis, A. (author)
International Conference on Scour and Erosion (ICSE-5) 2010 ; 2010 ; San Francisco, California, United States
Scour and Erosion ; 418-427
2010-10-29
Conference paper
Electronic Resource
English
Experimental Bench for Study of Internal Erosion in Cohesionless Soils
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