A possible characterization of suffusion susceptibility independent of the hydraulic loading history?
Sibille L., Rochim A., Le V.T., Marot D.
Abstract
Suffusion is a complex phenomenon which involves selective erosion of fine particles under the effect of seepage flow in the matrix of coarser particles. With the objective to characterize suffusion susceptibility, a series of downward seepage flow tests was realized with a triaxial erodimeter developed in our laboratory. Three different cohesionless soils were tested under controlled hydraulic gradient or under controlled flow rate. This study shows the significant effect of hydraulic loading history on the value of critical hydraulic gradient. Moreover, method characterizing the erosion susceptibility based on rate of erosion doesn’t lead to a unique characterization of suffusion process for different histories of hydraulic loading. The new analysis is based on energy expended by the seepage flow to characterize the hydraulic loading and the cumulative eroded dry mass to characterize the soil response. The results demonstrate that this approach is effective to characterize suffusion susceptibility for cohesionless soils.
Experiments on piping in sandy gravels
Brogan J.M., Skempton A.W., Brogan J.M., Skempton A.W.
Internal erosion in granular media: Direct numerical simulations and energy interpretation
Lomine F., Marot D., Poullain P., Sail Y., Sibille L., Sibille L., Lomine F., Marot D., Poullain P., Sail Y., Sibille L., Sibille L., Lomine F., Marot D., Poullain P., Sail Y., Sibille L., Sibille L.
A description of internal erosion by suffusion and induced settlements on cohesionless granular matter
Marot D., Sail Y., Sibille L., Sibille L., Marot D., Sail Y., Sibille L., Sibille L.
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Marot D., Regazzoni P.-L.
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Bonala M.V.S., Lee I.-M., Reddi L.N., Bonala M.V.S., Lee I.-M., Reddi L.N., Bonala M.V.S., Lee I.-M., Reddi L.N.
Erodibility characterisation for suffusion process in cohesive soil by two types of hydraulic loading
Bendahmane F., Marot D., Nguyen H.H., Bendahmane F., Marot D., Nguyen H.H., Bendahmane F., Marot D., Nguyen H.H.
A large permeameter for study of internal stability in cohesionless soils
Fannin R.J., Moffat R.A., Fannin R.J., Moffat R.A., Fannin R.J., Moffat R.A.
Influence of angularity of coarse fraction grains on internal erosion process
Bendahmane F., Marot D., Nguyen H.H., Bendahmane F., Marot D., Nguyen H.H., Bendahmane F., Marot D., Nguyen H.H.
Energy-based method for providing soil surface erodibility rankings
Marot D., Regazzoni P., Wahl T., Marot D., Regazzoni P., Wahl T., Marot D., Regazzoni P., Wahl T.
Multichannel optical sensor to quantify particle stability under seepage flow
Bendahmane F., Konrad J., Marot D., Bendahmane F., Konrad J., Marot D., Bendahmane F., Konrad J., Marot D.
