1,721,092 research outputs found
Discussion on “Test on application of distributed fibre optic sensing technique into soil slope monitoring
No full text
The mechanics of mudslide as a cyclic undrained-drained process.
No full textData collected by monitoring suggest that the movement of mudslides essentially develops through alternating stages of undrained–drained deformation. Undrained conditions are established as a consequence of landslide mobilisation or reactivation. Every acceleration phase is followed by progressive deceleration associated with dissipation of excess pore pressure. This paper reports the results of some simple numerical analyses performed to investigate the role of pore pressure on mudslide behaviour
The mechanics of mudslide as a cyclic undrained-drained process.
No full textData collected by monitoring suggest that the movement of mudslides essentially develops through alternating stages of undrained–drained deformation. Undrained conditions are established as a consequence of landslide mobilisation or reactivation. Every acceleration phase is followed by progressive deceleration associated with dissipation of excess pore pressure. This paper reports the results of some simple numerical analyses performed to investigate the role of pore pressure on mudslide behaviour
The mechanics of mudslide as a cyclic undrained-drained process.
No full textData collected by monitoring suggest that the movement of mudslides essentially develops through alternating stages of undrained–drained deformation. Undrained conditions are established as a consequence of landslide mobilisation or reactivation. Every acceleration phase is followed by progressive deceleration associated with dissipation of excess pore pressure. This paper reports the results of some simple numerical analyses performed to investigate the role of pore pressure on mudslide behaviour
Occurrence of flowslides in soils of pyroclastic origin and considerations for landslide hazard mapping
No full textIn recent years, a number of catastrophic flowslides revealed the high risk which threatens wide areas of the Campania Region, Southern Italy. In the Authors' opinion, the fast movements and the long run-out of these landslides are caused by the build up of positive excess pore pressures occurring after slope failure in the loose granular deposits of pyroclastic nature which cover hills and mountains (i.e. static liquefaction) Starting from this idea, hazard mapping including the definition of sites characterized by a significant liquefaction potential might be beneficial for land management
Deterioration processes in hard clays and clay shales
No full textSoil deterioration is one of the main causes of slope failure in hard clays and clay shales, but so far a clear general
framework of the causes of deterioration is still missing. Based on laboratory data, field observations and speculation, this paper
examines some processes of deterioration of stiff overconsolidated clays and clay shales with particular regard to their influence on
the stability of slopes. In particular, deterioration localized within soil bands or involving large soil masses is described with
reference to its mechanical or physico-chemical causes. Coupling between mechanical and physico-chemical processes
is considered
Properties and behaviour of tectonized clay shales in Italy
No full textThe tectonized clay shales of Souther Apennines are special materials which can neither be easily investigated and modelled with the usual criteria of Soil Mechanics, because of the presence of some weak bonding, nor with those of Rock Mechanics, due to very small and closely spaced random fissures. In addition, marked inhomogeneities may be significant even at the scale of laboratory specimens. Such peculiar features strongly influence the mechanical behaviour of these materials which are often a major problem for the design and construction of geotechnical works.
The present reports, describes and discusses the behaviour of italian tectonized clay shales as foundation soils of large earthworks, in slope stability and in tunnelling problems. their behaviour is interpreted taking into account the role of fabric and structure, as well as of the physico-chemical environmental conditions
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