Pressuremeter test in glaciated valley sediments (Andorra, Southern Pyrenees). Part two: Fossil subglacial drainage patterns, dynamics and rheology

Abstract

Any subglacial sediment subjected to drainage with load and unload hydrological cycles should present consolidation patters similar to those here described. Without the use of pressuremeter tests might be impossible to obtain a significant number of strain/stress data to permit the rheology study of glacial sediments at Andorra. However similar rehological behaviours to those of type 2 curves have been obtained from oedometric tests, but the lack of data inherent to the granulometry of the glaciated sediments did not permit to get further data by that way. Without representative data of the whole family of subglacial sediments (Evans et al. 2006) the rheological study of them is almost impossible, but much research is still needed to be able to completely explain the rheological characteristics of subglacial sediments, especially comparative studies all over the glaciated areas