Study of a rockslide in a limestone formation with clay (Contributo in atti di convegno)

Type
Label
  • Study of a rockslide in a limestone formation with clay (Contributo in atti di convegno) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Alternative label
  • Graziani A., Rotonda T., Tommasi P., Marsella M., Soccodato C. (2009)
    Study of a rockslide in a limestone formation with clay
    in International Conference on Rock Joints and Jointed Rock Masses, Tucson (AZ - USA)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Graziani A., Rotonda T., Tommasi P., Marsella M., Soccodato C. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • Articolo di 8 pp in doppia colonna (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • The paper reports preliminary analyses of a 140,000 m3 rock slide extending over the entire width of a quarry front in a limestone formation with clay interbeds. Geometry of the slide is examined on the basis of a detailed description of joint orientation and spacing. Geotechnical laboratory investigations on the interbed materials indicate that the residual shear strength is significantly affected by the percentage of coarser grains and hard scales, which in turn seems to be dependent on the amount of shear displacement. Spatial distribution of displacement vectors is analysed and a correlation between the time histories of displacements and rainfall was found. Limit equilibrium analyses confirm the key role of hydraulic pressures in the vertical joints and along the sliding surface. All the calculations yield a global mobilized shear strength greater than the residual value of the clay interbeds. Possible causes of this discrepancy are to be found in the variability of the mobilized strength along the slip surface, in the effect of bedding joint undulations and in the contribution of strength along the lateral boundaries of the rock wedge. (literal)
Titolo
  • Study of a rockslide in a limestone formation with clay (literal)
Prodotto di
Autore CNR

Incoming links:


Prodotto
Autore CNR di
data.CNR.it