| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 785111 | International Journal of Non-Linear Mechanics | 2013 | 6 Pages |
A constitutive model is developed for describing the response of rock glaciers that takes into account the effect of the shear rate, pressure and the volume fraction of the rocks and sand grains trapped within the interstices of the rock glacier on the viscosity of the rock glacier. Using the model, we describe the motion of the Murtèl-Corvatsch rock glacier by corroborating the predictions of the model with the experimental data available for the displacement of a vertical borehole, by appealing to a simple semi-inverse solution for the velocity, pressure and volume fraction fields. The predictions of the model agree quite well with the experimental results.
► In this paper we develop a new constitutive model to describe the flow of rock glaciers. ► This takes into account the dependence of viscosity on the pressure and the volume fraction of the sand grains. ► Using this constitutive model we are able to describe the motion of rock glaciers. ► We correlate the prediction of the model with experimental results available for the Murtèl-Corvatsch rock glacier.
