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A scree slope rockfall model

1976; Wiley; Volume: 1; Issue: 1 Linguagem: Inglês

10.1002/esp.3290010106

1931-8065

Ian Statham,

Soil and Unsaturated Flow

Abstract Certain observed characteristics of scree slopes; namely concavity of profile, straight slope angle less than the angle of repose, and good size sorting of particles, are not consistent with an angle of repose model for accumulation. An alternative model is proposed based upon rockfall and surface stone movement and is tested against experimental data of particle movement in the field. It is found that the mechanical model of stone movement generated adequately explains the motion of particles on scree slopes and that it is in keeping with the characteristics of many screes. The static features of some Isle of Skye screes were also measured and the straight‐concave slope form with good downslope sorting of material, characteristic of the rockfall process, was found to be present.