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Title: | Amplification of the destructive effects of rock falls by sliding on volcanic soils: Examples from the anaga massif (Tenerife Island, Spain) | Authors: | Temiño, Jorge Yepes Rodríguez-Peces, Martín Jesús Marchesini, Sara Leyva, Sergio Díaz-Hernández, José Luis |
UNESCO Clasification: | 250607 Geomorfología 250621 Vulcanología |
Keywords: | Rock falls Rocky slopes Tenerife |
Issue Date: | 2013 | Journal: | Landslide Science and Practice: Landslide Inventory and Susceptibility and Hazard Zoning | Conference: | 2nd World Landslide Forum, WLF 2011 | Abstract: | This paper provides geomorphological and geotechnical observations on the amplification of the destructive behaviour of rock falls on rocky slopes in the Anaga massif (Tenerife Island, Spain) covered with soils rich in organic matter, within a high rainfall regime. The soil organic matter would be the determinant factor of this process, because it would reduce the soil strength as a result of overcoming the liquid limit during heavy rains. Thus the soil could develop a semi-fluid consistency, triggering a more efficient sliding of the blocks of rock along the slope and, hence, amplifying the destructive effect of the rock falls. Other potential determinant factor would be that the soil fine fraction could undergo a sudden change in its microfabric related to the dynamic load caused by the rock fall, similar to the mechanism described to explain the landslides developed in clayey soils. | URI: | http://hdl.handle.net/10553/43173 | ISBN: | 9783642313240 | DOI: | 10.1007/978-3-642-31325-7-25 | Source: | Landslide Science and Practice: Landslide Inventory and Susceptibility and Hazard Zoning, v. 1, p. 191-195 |
Appears in Collections: | Actas de congresos |
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