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Title: | Pressuremeter test in glaciated valley sediments (Andorra, Southern Pyrenees). Part one: An improved approach to their geomechanical behaviour |
Author: | Turu, Valentí |
Keywords: | Glaceres Sediments glacials Pirineus Andorra Glaciers Drift Pyrenees Andorra |
Issue Date: | Dec-2007 |
Publisher: | Stowarzyszenie Geomorfologów Polskich |
Abstract: | The hyperelastic and hypoplastic behaviour of type 3 curves derive from previous hyperplastic be haviour from type 2 curves, while hyperplasticity of type 2 in turn derive from the elastic behaviour oftype 1 curves. The principal mechanism to that evolution is due to load-unload (L-UL) cycles, producing stiffening and kinematic hardening of the subglacial sediment. The evolution from type 2 to type 3 soil behaviour should start with a critical state consolidation (HoPP yield), wile the HEHoP yield point appear when the soil is led to a dense packing by further fine grain cleaning and rearrangement of grains. Between both, type 2 expansion of the yield curve due to plastic hardening by load-unload cycles derive to ratcheting in type 3 diagrams by extensive accumulation of deformation by those cycles. |
Note: | Reproducció del document publicat a: http://geoinfo.amu.edu.pl/sgp/LA/LA05/LA5_Turu_1.pdf |
It is part of: | Landform Analysis, 2007, vol. 5, p. 89-94 |
URI: | http://hdl.handle.net/2445/193379 |
ISSN: | 1429-799X |
Appears in Collections: | Articles publicats en revistes (Dinàmica de la Terra i l'Oceà) |
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729402.pdf | 2.01 MB | Adobe PDF | View/Open |
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