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Scouring of cohesive soils
Emmanuel O. Kuti,Chin-Lien Yen +1 more
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In this paper, the effect of some basic properties of clay-minerals mixed with cohesionless soil on scouring at the toe of a spillway was analyzed by the concept of incipient motion of the soil particles.Abstract:
This study evaluates the effect of some basic properties of clay-minerals mixed with cohesionless soil on scouring at the toe of a spillway Scouring was analyzed by the concept of incipient motion of the soil particles Experiment was performed to determine the influence of the clay-minerals (Kaolinites) and its compactness on the rate of volume of scouring It was assumed that seepage does not exist at the toe of the spillway and the characteristics of the flow is submerged Depth of the approaching flow at apron “a” and reference velocity “U” were kept constant throughout the experiment The results show that factors affecting scouring of cohesive bed downstream of a spillway include: flow characteristics, soil properties, fluid properties and boundary conditions Also when the rate of flow is finite, there is a limit to the extent of scourread more
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Erosion of mud/sand mixtures
Helen Mitchener,Hilde Torfs +1 more
TL;DR: In this article, the authors investigated the relationship between the erosional properties of combined mud and sand sediments, and found that adding sand to mud, or vice versa, increases the erosion resistance and reduces the erosion rates when the critical shear stress for erosion is exceeded.
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Cohesive Material Erosion by Unidirectional Current
TL;DR: In this paper, the initiation of motion of consolidated cohesive sediments under a unidirectional flow of clear water was studied in a flume-tunnel capable of providing a bed shear stress up to 26 Pa and a velocity of 3.5 m/s, 3 mm above the bed.
Time development of local scour at a bridge pier fitted with a collar
TL;DR: In this paper, the authors present a list of figures and entities who have been associated with LDA, including the following: 1) ACKNOWLEDGEMENTS, 2) DEDICATION, 3) this paper.
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Scour of a cohesive soil by submerged plane turbulent wall jets
TL;DR: In this paper, the authors examined the effect of hydraulic variables on the scour of a cohesive soil produced by submerged plane turbulent wall jets in order to determine if repeatable scour experiments by these jets could be performed in cohesive material.
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Influence of cohesion on scour under submerged circular vertical jets
TL;DR: In this article, the results of an experimental study on scour under submerged circular vertical jets of water in cohesionless and cohesive sediments are presented, and the difference between scour patterns in cohesive and non-cohesive sediments is identified.
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A Contribution to the settlement analysis of foundations on clay
TL;DR: In this paper, an approximate theory for the settlement of a foundation on a saturated clay is described, which takes account of the type of clay; and comparisons with observed settlements in a number of practical cases show the theory to be an improvement on existing methods of calculation.
Journal Article
Causes and mechanisms of cohesive soil erosion: the state of the art
TL;DR: In this article, the authors investigate the process of emergence of COHESIVE SOIL through a study of basic SOIL INDEX PROPERTIES, SOIL STRUCTURE and FABRIC, and PHYSICOCHEMICAL INTERACTION of SOIL and WATER.