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Keywords: deformation
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Proceedings Papers

Paper presented at the ISRM Progressive Rock Failure Conference, June 5–9, 2017
Paper Number: ISRM-PRF-2017-010
..., only a small portion show evidence of pre-failure deformation. We use our data to look in detail at the nature of deformation during the week prior to failure. We see multiple phases of movement that relate to weather conditions, in addition to pulses of movement immediately prior to collapse, which we...
Proceedings Papers

Paper presented at the ISRM Progressive Rock Failure Conference, June 5–9, 2017
Paper Number: ISRM-PRF-2017-001
... at the expense of shorter ones. By contrast, under all-round compression deformation of rocks in the brittle field proceeds by the progressive growth and coalescence of many microcracks. Under nominally dry environmental conditions and rapid loading, crack growth is primarily governed by the applied stresses...
Proceedings Papers

Paper presented at the ISRM Progressive Rock Failure Conference, June 5–9, 2017
Paper Number: ISRM-PRF-2017-016
... 1 Introduction Compiled field and literature data show that landslides are geologically pre-disposed by the lithological, structural and morphological setting. Concerning the Alps, radiometric age dating data suggest that several active moving landslides represent "old" slope deformations...
Proceedings Papers

Paper presented at the ISRM Progressive Rock Failure Conference, June 5–9, 2017
Paper Number: ISRM-PRF-2017-022
... 1 Abstract The main goal of this study is to describe the spatial and temporal evolution of rock fall phenomena triggered by rapid slope deformation. To this end, we combine low cost seismic sensors and image processing to study a large instability adjacent to the Great Aletsch glacier...
Proceedings Papers

Paper presented at the ISRM Progressive Rock Failure Conference, June 5–9, 2017
Paper Number: ISRM-PRF-2017-047
... 1 The small and large deformations of geomaterials From the continuum mechanics point of view, a number of geomaterials are both damageable elastic solids in which highly localized features emerge as a result of failure and materials experiencing high, permanent strains that dissipate...
Proceedings Papers

Paper presented at the ISRM Progressive Rock Failure Conference, June 5–9, 2017
Paper Number: ISRM-PRF-2017-017
...-thaw cycles make many fjords and valleys of western Norway particularly prone to rock slope failures (Blikra et al. 2006). Many rock slope failures occurred shortly (i.e. 1000 to 3000 years) after deglaciation (Blikra et al. 2006; Böhme et al. 2015) and a large number of gravitational deformation...
Proceedings Papers

Paper presented at the ISRM Progressive Rock Failure Conference, June 5–9, 2017
Paper Number: ISRM-PRF-2017-003
...-deformation of the rock acting upon by these stresses. These processes are overlain by "cleft-water pressures reducing the frictional resistance along the joint walls" from rainfall and snow melt water infiltrating into the strongly damaged near surface layer, where the groundwater table (or pore pressures...
Proceedings Papers

Paper presented at the ISRM Progressive Rock Failure Conference, June 5–9, 2017
Paper Number: ISRM-PRF-2017-009
... that the initial development of rock slope failures can proceed prior to the complete glacier withdrawal, and involve deformation of a buttressing glacier (McColl & Davies 2013). This study takes the opportunity to investigate the long-term development of a large, active rockslope failure that is still...
Proceedings Papers

Paper presented at the ISRM Progressive Rock Failure Conference, June 5–9, 2017
Paper Number: ISRM-PRF-2017-004
... 1 Background In geological vocabulary, the term "brittle" is used to describe deformation behaviour in which the rock loses continuity (Van der Pluijm & Marshak 2004), or as the permanent change that occurs in a solid material due to the growth of fractures and/or due to sliding...

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