Inclinable Shear Box Simulations of Deepening Active Layers on Perennially Frozen Scree Slopes
A series of systematic shear tests were performed using an inclinable shear box containing a coarse‐grained active layer overlying a fine‐grained permafrost layer, a stratigraphy observed in the field. The angle of mobilised interface friction Φmob was determined as depending on the grain size of th...
| Published in: | Permafrost and Periglacial Processes |
|---|---|
| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ppp.1730 |
| _version_ | 1821538375207747584 |
|---|---|
| author | A. Rist M. Phillips S. M. Springman |
| author_facet | A. Rist M. Phillips S. M. Springman |
| author_sort | A. Rist |
| collection | RePEc (Research Papers in Economics) |
| container_issue | 1 |
| container_start_page | 26 |
| container_title | Permafrost and Periglacial Processes |
| container_volume | 23 |
| description | A series of systematic shear tests were performed using an inclinable shear box containing a coarse‐grained active layer overlying a fine‐grained permafrost layer, a stratigraphy observed in the field. The angle of mobilised interface friction Φmob was determined as depending on the grain size of the active layer and the permafrost, the water content of the active layer and the ice content of the permafrost. Φmob was found to be 8° lower for ice‐free permafrost compared to permafrost containing ice. This result implies a possible long‐term decrease of active‐layer slope stability on scree slopes in Alpine permafrost terrain under warming conditions. Copyright © 2012 John Wiley & Sons, Ltd. |
| format | Article in Journal/Newspaper |
| genre | Ice permafrost |
| genre_facet | Ice permafrost |
| id | ftrepec:oai:RePEc:wly:perpro:v:23:y:2012:i:1:p:26-38 |
| institution | Open Polar |
| language | unknown |
| op_collection_id | ftrepec |
| op_container_end_page | 38 |
| op_doi | https://doi.org/10.1002/ppp.1730 |
| op_relation | https://doi.org/10.1002/ppp.1730 |
| record_format | openpolar |
| spelling | ftrepec:oai:RePEc:wly:perpro:v:23:y:2012:i:1:p:26-38 2025-01-16T22:21:04+00:00 Inclinable Shear Box Simulations of Deepening Active Layers on Perennially Frozen Scree Slopes A. Rist M. Phillips S. M. Springman https://doi.org/10.1002/ppp.1730 unknown https://doi.org/10.1002/ppp.1730 article ftrepec https://doi.org/10.1002/ppp.1730 2020-12-04T13:31:03Z A series of systematic shear tests were performed using an inclinable shear box containing a coarse‐grained active layer overlying a fine‐grained permafrost layer, a stratigraphy observed in the field. The angle of mobilised interface friction Φmob was determined as depending on the grain size of the active layer and the permafrost, the water content of the active layer and the ice content of the permafrost. Φmob was found to be 8° lower for ice‐free permafrost compared to permafrost containing ice. This result implies a possible long‐term decrease of active‐layer slope stability on scree slopes in Alpine permafrost terrain under warming conditions. Copyright © 2012 John Wiley & Sons, Ltd. Article in Journal/Newspaper Ice permafrost RePEc (Research Papers in Economics) Permafrost and Periglacial Processes 23 1 26 38 |
| spellingShingle | A. Rist M. Phillips S. M. Springman Inclinable Shear Box Simulations of Deepening Active Layers on Perennially Frozen Scree Slopes |
| title | Inclinable Shear Box Simulations of Deepening Active Layers on Perennially Frozen Scree Slopes |
| title_full | Inclinable Shear Box Simulations of Deepening Active Layers on Perennially Frozen Scree Slopes |
| title_fullStr | Inclinable Shear Box Simulations of Deepening Active Layers on Perennially Frozen Scree Slopes |
| title_full_unstemmed | Inclinable Shear Box Simulations of Deepening Active Layers on Perennially Frozen Scree Slopes |
| title_short | Inclinable Shear Box Simulations of Deepening Active Layers on Perennially Frozen Scree Slopes |
| title_sort | inclinable shear box simulations of deepening active layers on perennially frozen scree slopes |
| url | https://doi.org/10.1002/ppp.1730 |